Coming home feature on non-light sensor models

[dracolnyte]

Hi there,

I was just thinking if it was possible to use VAGCOM to try and program the coming home function, on models without the light sensor, whenever the light switch is left on low beam?

Thanks

[CurbKiller]

Do you have a VAG cable? If so try it out. I know on my B6 VW Passat I checked off 'coming home/leaving home' and bingo, the MFI now had that option and I was able to set it. The only issue was it only worked with coming home. I needed the auto headlamp switch to make the other half work, even thought I didn't have auto lights.

Can't see this hurting anything by just trying it out.

Good luck.

P

[dracolnyte]

it'll be great if it had both coming and leaving home functions but thanks anyways!

[coolwater]

So what was the final result? Were you able to enable the coming/leaving home feature through Vagcom?

-cW

[dracolnyte]

im meeting up with naemcivic tmr to use his vagcom cable to see if we can enable it.

keep you posted

[dracolnyte]

actually, i woudnt mind if it comes on everytime i press unlock, regardless of the time of the day!

[NPuter]

I may sound like a broken record, but I am pretty sure you have to completely retrofit auto headlights for this to work...

[dracolnyte]

i wonder if it is hard to install rain/light sensor and the auto headlamp switch into my car

[coolwater]

Even if I keep the headlights in the "on" position?
I would only use this feature when I drive at night.
Which is not terribly often.


-cW

[dracolnyte]

okay so today i had a photoshoot with a bunch of my friends and 2 VW GTI came. both dont have light sensors but one of them was able to vagcom leaving home function.
so i did some research and found out 2 ways of doing this on the VWs:

Method 1:
09 Cent. Elect. -> adaptation 10 ->
Channel 001: Coming-Home Time

Time which the Coming-Home function will be active.

* Range: 10...60 Seconds
* Resolution: 10 Seconds
* Note: Only active if Byte 00 Bit 7 of Long Coding active.

Channel 002: Leaving-Home Time

Time which the Leaving-Home function will be active.

* Range: 10...60 Seconds
* Resolution: 10 Seconds
* Note: Only active if Byte 00 Bit 5 of Long Coding active.

Method 2:
09 Cent. Elect. -> coding 07 -> long code helper ->
To enable both Leaving Home and Coming Home turn on bits 5 & 7
http://dataton.net/vw/VAGscreenshot/FogsAsDRL-09centElec-07-byte0.png
the CH/LH function should come up on the MMI screen or DIS screen.

could somebody please verify if these methods work.

Thanks

[NPuter]

^^
So those instructions are for VW...?

[dracolnyte]

yes, those are the instructions for VW...

[Cabal_san]

So let me get this straight, you want to use the same coding from a GTI on your A4? But you want someone else to be the guinea pig and try it out on their Audi ECU?

Why dont you just try it out and let us know your results. No guts no glory...

[dracolnyte]

okay i just tried it on central elect. 09 today and we have nothing in our byte 0, the bits are 00100111 though so i thought i manually change bit 7 to 1 into 10100111 and it gave me some controller error.... k back to researching

[haroulli]

I Enabled the CH/LH option on my VAG-COM for me P- it gave me the menu option on my screen under "CAR" - "Exterior Lighting" but doesn't seem to functioning. Even though it's a timer essentially.

[dracolnyte]

I Enabled the CH/LH option on my VAG-COM for me P- it gave me the menu option on my screen under "CAR" - "Exterior Lighting" but doesn't seem to functioning. Even though it's a timer essentially.

oh could you share what you did in vagcom so we can both look into it? its a step closer at least. thanks!

[haroulli]

Here you go: http://www.audizine.com/gallery/data/500/ch-lh.JPG

[NPuter]

Here you go: http://www.audizine.com/gallery/data/500/ch-lh.JPG

Have you tested it??? Does it work..?

It just can't be this easy [:p]

[dracolnyte]

this is in central elect. 09 right?

[haroulli]

@Nputer: err testing it as in locking the car resulted in nothing, unlocking it also resulted in no change in the headlights. However I have not tested with the lights left in the on position.

@DrAcolnyte: yep it's in 09 and long coding then long coding helper. I'm using VAG-COM 912.

[dracolnyte]

headlights are suppose to be in the ON position to work

[haroulli]

Tried it this AM and drove with the lights on then locked the car, no difference. It doesn't seem to work.

[NPuter]

Tried it this AM and drove with the lights on then locked the car, no difference. It doesn't seem to work.

I believe this is because of our lack of a light sensor... CH/LH is only activated when it is dark out - since we do not have a light sensor our cars have no way of telling between the two...

The only thing we can do now is install a light sensor, or hope a code is discovered to activate CH/LH regardless of ambient light... (ALOT of people want this)

[dracolnyte]

the VW folks can activate CH/LH regardless of or in the absence of a light sensor. The car knows it's dark when you put the headlight switch to lowbeam, thats when it should be active

[haroulli]

Just to update I've tried with lights in all positions with no success. I also tried and enabled the auto rain/light sensor but that threw a malfunction error and disabled the lights.

I guess this further proves the need for this module to be installed. I would like to see if that is do-able.

[christianFSI]

The first Golf 5 models in Europe had to be connected to ground at a given PIN and then the CH / LH function worked...maybe it has to be done at the 8K on the same way...

[Il Signor Zetec]

Hello, I mounted the light/rain sensor on my B8, with a new light switch and without change the windscreen!
I putted the sensor near the central mirror support, in the center of a plastic base glued with a biadesive on the windscreen.
All work ok, only with a lot of sun under the gel sensor you can see little air bubble, I can pass you the VAG mods to do in the weekend, when I return at home.
When I tried to put it, nobody help me for the new VAG setting, so I studied a lot, but there was the result! :)

[dracolnyte]

Hello, I mounted the light/rain sensor on my B8, with a new light switch and without change the windscreen!
I putted the sensor near the central mirror support, in the center of a plastic base glued with a biadesive on the windscreen.
All work ok, only with a lot of sun under the gel sensor you can see little air bubble, I can pass you the VAG mods to do in the weekend, when I return at home.
When I tried to put it, nobody help me for the new VAG setting, so I studied a lot, but there was the result! :)

Hi there,

Thanks for your input. could you write up a DIY and put up some pictures of how you did it and the process? was it hard? and what part numbers did u use?

[NPuter]

Hi there,

Thanks for your input. could you write up a DIY and put up some pictures of how you did it and the process? was it hard? and what part numbers did u use?

+1 - I would love to know the specifics of you retrofit [:)]

[Il Signor Zetec]

+1 - I would love to know the specifics of you retrofit [:)]



Ok, first you must check the can gateway ecu part number...it must be compatible with the rain/light sensor. My finish with "M" and it's compatible.
Then you need:
-rain/light sensor code 8K0 955 559
-gel for rain sensor code 4E0 955 609
-plug for rain light sensor code 1C0 973 119 B
-2 cable for plug code 000 979 009 E
-some cable 0,35-0,5mm2 to make tree lines from the mirror to the board module under the steering wheel
-new light switch code 8K0 941 531 AA


change the light switch, make a little base to put the sensor on a windscreen area touched from the wiper blades like this (photo of the work on my S3):

http://img.photobucket.com/albums/v20/il_Signor_Zetec/DSCN1164.jpg

[dracolnyte]

seems kinda complicated and costly. im gonna stick back with the vag. thx anyways

[Il Signor Zetec]

seems kinda complicated and costly. im gonna stick back with the vag. thx anyways

I bought quite all from ebay, only some little parts from audi: the total was around 60-70 euros...

[dracolnyte]

gonna continue to try and discover the coding for this mod since I have my own cable now thx to naemcivic +1 ;)

[dracolnyte]

I Enabled the CH/LH option on my VAG-COM for me P- it gave me the menu option on my screen under "CAR" - "Exterior Lighting" but doesn't seem to functioning. Even though it's a timer essentially.

I just did the vagcom changes u suggested under 09 cent. elect. byte 6 bit 1,2,3 and it doesnt work, exterior lighting doesnt even show up in CAR. i am using vag 908 though, but it shouldnt be that different

[dracolnyte]

short update: tonight i tried putting these bits in 09 cent. elect. byte 6:
byte 6: 00011111 - nothing
byte 6: 11101110 - nothing
though i did forget to open the door when i tried these code. but at least i found out that the leaving home function doesnt work.

Also in adaptation 10, i tried putting channel 46 to 0, no luck

[dracolnyte]

So what I discovered today was the models with the light and rain sensor, even if you leave your headlights on the "ON" position, you won't get CH/LH function to activate; has to be on auto switch...
what this mean is its not even pre-coded in the premium+ models... if you haven't known already....
sigh back to searching

[xxq00958]

So what I discovered today was the models with the light and rain sensor, even if you leave your headlights on the "ON" position, you won't get CH/LH function to activate; has to be on auto switch...
what this mean is its not even pre-coded in the premium+ models... if you haven't known already....
sigh back to searching

not sure whats going to happen if you install only the light switch (with auto) but without the rain/light sensor?....

[dracolnyte]

not sure whats going to happen if you install only the light switch (with auto) but without the rain/light sensor?....

nothing will happen since theres no feedback from the light sensor. it might think that its always daytime or its always night time...

[xxq00958]

nothing will happen since theres no feedback from the light sensor. it might think that its always daytime or its always night time...

yea, thats what i thought too.... can someone who has light sensor and auto on off headlight switch off the light sensor via VAGCOM and see if LC/CH still works??
this will be extremely helpful.....

[xxq00958]

nothing will happen since theres no feedback from the light sensor. it might think that its always daytime or its always night time...


yea....thats what i thought too.... so if anyone with light sensor and auto on off headlight can switch off the light sensor via VAGCOM, and see if LH/CH still works... would be extremely helpful.... I have a base model so I don have LH/CH as well...
hope someone can help!

[dracolnyte]

I just did the vagcom changes u suggested under 09 cent. elect. byte 6 bit 1,2,3 and it doesnt work, exterior lighting doesnt even show up in CAR. i am using vag 908 though, but it shouldnt be that different

Thanks to the help of Nputer for providing his coding,
Radio 56, Byte 10, bit 0 enables "Exterior Lighting" in CAR menu
if its not already labeled by your VAG (silly me)

I was able to get the settings for
Coming home
Leaving home
and headlamp converter

But CH/LH still a mystery

[NPuter]

Thanks to the help of Nputer for providing his coding,
Radio 56, Byte 10, bit 0 enables "Exterior Lighting" in CAR menu
if its not already labeled by your VAG (silly me)

I was able to get the settings for
Coming home
Leaving home
and headlamp converter

But CH/LH still a mystery

I am glad that you were able to get the menu...

Are your options for CH/LH greyed out?

[xxq00958]

I am glad that you were able to get the menu...

Are your options for CH/LH greyed out?

CH/LH isnt greyed out in my case (I have a base model)
but its not going to work without auto on/off switch, and maybe rain/light sensor.
so it might be helpful for people who have CH/LH function to disable their rain/light sensor via VAGCOM and see if the CH/LH still works...

[dracolnyte]

I am glad that you were able to get the menu...

Are your options for CH/LH greyed out?

Nope, my CH/LH functions were not greyed out, I can go into them, set timer and turn on/off...

[haroulli]

Ok bringing this up again. Has anyone seen this from Kufatec http://kufatec.com/index.php?main_page=product_info&cPath=6_149&products_id=1328 I think retro fitting this mirror with the sensor and the Auto Light switch would be the only way to go to get the LC/CH working.

However I guess these are the main questions we need to answer before jumping in to this:

It states its "Only suitable for vehicles equipped with PR-Nr. 8N6" what option is this?
Replacing the windscreen, is it necessary?
Do we need a different mount? If so is it supplied in the Kit?


Feel free to answer these and/or add more questions I might have over looked!

[haroulli]

Ok I checked the build sticker in the spare wheel well and I don't have 8N6 but I still havent lost hope.

[DavidB8]

Save your energy checking your sticker: 8N6 = Windshield wiper intermittent control with light/rain sensor

My mirror is fully exposed so I can try unplugging it and see if I still have CH/LH. Stay tuned.

[dracolnyte]

Save your energy checking your sticker: 8N6 = Windshield wiper intermittent control with light/rain sensor

My mirror is fully exposed so I can try unplugging it and see if I still have CH/LH. Stay tuned.

First of all, I would like to say thanks for your help!
But on my car, and most people in this thread does not have a rain and light sensor, however we would still like to have CH/LH function.

But if you say you are going to unplug your sensor, are you going to leave the light switch in "auto" or the "on" position?

[DavidB8]

I'm aware of peoples plight on this one. I do know the thread is based on enabling the feature without the sensor. I was just providing you with the PR description so everyone knew they didn't have to check their sticker.

As far as on and auto goes for the switch I think that would be based on testing. If it doesn't work on Auto where it should we'll know it's 100% sensor reliant and the testing can stop. If it does work then the switch goes to on for testing. If it doesn't work while in the on position then you know it's switch dependent. Not to worry, I have a bit of experience doing testing.

[TR464]

There's no way of getting CH/LH without the rain&light sensor. The sensor provides a LIN bus signal that can't be substituted (except by a microcontroller).
But anyway, what's the problem in retrofitting the sensor?
- Swapping the light switch is plug and play.
- Just 3 wires to connect the sensor and you'll have the full functionality.
- Mounting is a breeze if you have the large mirror holder, if not you have to tinker a bit using some VW parts.

[DavidB8]

Interesting that VW's seem to have some different programing options. Besides this one, they have rain/light sensors that are capable of sending a close signal to the windows and sunroof if it rains (if coded of course). Ours wont.

[TR464]

... Besides this one, they have rain/light sensors that are capable of sending a close signal to the windows and sunroof if it rains (if coded of course). Ours wont.

It's not a matter of the sensor signal, it's the ecus capability to work with the sensor information, :-)
Our ecus are not designed to handle the rain close feature.

[TR464]

... Mounting is a breeze if you have the large mirror holder, if not you have to tinker a bit using some VW parts.

Here is shown how a rain&light sensor can be mounted to the rear window (sorry, howto is in German of course, just watch the pictures of the parts):
http://www.passatkomfort.de/Daten/Regensensor/Montage/Doku_Einbau_Regensensor_Heckscheibe_1v1.pdf

I adopted this description for the front screen, glueing the mounting bracket 3B0 845 543 A to the windscreen next to the mirror. It's the second best option if you don't want to replace the windscreen with one that has the large mirrer holder.

[DavidB8]

It's not a matter of the sensor signal, it's the ecus capability to work with the sensor information, :-)
Our ecus are not designed to handle the rain close feature.

Well I did a bit of research on that one with the VW's and found that only certain sensors would work with that feature. There where a few threads on VW owners upgrading their sensors to make it work. Not sure I ever seen anything mentioned about module changes though. At any rate I chased that one down as far as I could including trialing some coding but it just wouldn't work with our setup.

[TR464]

... only certain sensors would work with that feature. There where a few threads on VW owners upgrading their sensors to make it work. Not sure I ever seen anything mentioned about module changes though. At any rate I chased that one down as far as I could including trialing some coding but it just wouldn't work with our setup.

Well, you can actually code our light&rain sensor (subsystem within ecu 09, Byte 0, add 4 to current bit value - that makes coding 07 if highway and rain light was already activated) - coding is accepted, so the sensor is capable of performing this function, but it doesn't work since the 09 isn't.

[dracolnyte]

but i find it weird that the VW guys is able to code CH/LH without the sensor by simply putting their light switch on the "ON" mode.
Is there a way that I could manually go in and write my own code?

[haroulli]

There's no way of getting CH/LH without the rain&light sensor. The sensor provides a LIN bus signal that can't be substituted (except by a microcontroller).
But anyway, what's the problem in retrofitting the sensor?
- Swapping the light switch is plug and play.
- Just 3 wires to connect the sensor and you'll have the full functionality.
- Mounting is a breeze if you have the large mirror holder, if not you have to tinker a bit using some VW parts.

I think this touches on part of my previous question. I'm pretty sure like TR464 says we can't just enable it within the ECU, my question remains what goes into retro fitting this. I have found this on ebay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200481175084&ssPageName=STRK:MEWAX:IT#ht_1082wt_1141 Do I need a new windshield? Since its mount is larger? And does it plug in somewhere in the roof near the Sunroof controls or do we have to do some wiring? And obviously we need to change the switch for the Auto Option.

[TR464]

but i find it weird that the VW guys is able to code CH/LH without the sensor by simply putting their light switch on the "ON" mode.
Is there a way that I could manually go in and write my own code?

Weird or not - VW is not Audi, their sensor and ecu are different to ours and no, you can't.

[TR464]

I think this touches on part of my previous question. I'm pretty sure like TR464 says we can't just enable it within the ECU, my question remains what goes into retro fitting this. I have found this on ebay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200481175084&ssPageName=STRK:MEWAX:IT#ht_1082wt_1141 Do I need a new windshield? Since its mount is larger? And does it plug in somewhere in the roof near the Sunroof controls or do we have to do some wiring? And obviously we need to change the switch for the Auto Option.

No stock rain&light sensor from factory => small mounting bracket => no, the autodimming mirror won't fit without either swapping the windscreen or creating a custom holder (cut roughly 10mm from your old -small- mirror mounting and screw this into the center of the large mirror intake)
Any chance to swap the mounting bracket? No, you won't get rid of the old one without cracking the windscreen (and the large mounting bracket isn't available seperately)
Wiring necessary? Yes, wrote that before. Ground, +12V and signal, routed from the roof console to dash board right side and ecu 09 - nothing prepared from factory.
Light switch with auto position? Yes, mandatory required, just plug&play
Any chance to integrate the rain&light sensor into the small holder? No, that's why I posted a link to the pdf above

[haroulli]

From DavidB8
Without doing all the research right now you would need:
Rain Sensor: 8K0 955 559
Adhesive kit: 4E0 955 609
Plug: 1C0 973 119 B
Wires: 1K0 973 333 x2
Switch: 8K0 941 531 (AL, AS,??)

[DavidB8]

Incidently I have read about people retrofitting the sensor in back windows and other locations since it is no necessary to install it with the mirror although it's ideal.

[NPuter]

Incidently I have read about people retrofitting the sensor in back windows and other locations since it is no necessary to install it with the mirror although it's ideal.

Wouldn't rear window tint mess with the sensor's reading (that is if you have tint)?

[TR464]

Incidently I have read about people retrofitting the sensor in back windows and other locations since it is no necessary to install it with the mirror although it's ideal.

Not a good idea since the rain-sensor (remember it's a rain&light-sensor) needs to be mounted within the clearing range of the windshield wipers.
The link I posted in Januar was just to show a mounting option for those who don't have the large mirror bracket - simply adopt this way for the windshield.

[DavidB8]

Well you could cut the tint out where the sensor would go. Just saying I have seen other installs. Most people do it for the light sensor not the rain so it's important to keep in mind how it functions. I seen a few VW Folk that installed it in their rear windows but as Thorsten mentioned there is viable solutions.

[dracolnyte]

Went to play with the VAG tonight, tried to make some discoveries but ended up finding some useless things or nothing at all.
In central elect. 09 Byte 0, I have tried the following bits:

10100110 - fail
01100110 - backround lighting remains on with key in ignition
00110110 - nothing
00101110 - nothing
00100111 - nothing

00101111 - nothing
00110111 - nothing
01100111 - nothing
00111110 - nothing
01101110 - background rings longer
00111111 - nothing
01101111 - nothing
01111111 - nothing

I tried opening the door, locking, unlocking with the switch at "0" and "ON" for all combination. Also, what I learned is the CH/LH feature is not switch dependent.

[DavidB8]

When you say the option isn't switch specific does that mean you have tried an Auto switch? I thought you needed to have the switch in the Auto position for this function to work.

[dracolnyte]

When you say the option isn't switch specific does that mean you have tried an Auto switch? I thought you needed to have the switch in the Auto position for this function to work.

yeah i got an auto switch to try and it didnt work

[haroulli]

yeah i got an auto switch to try and it didnt work

Thanks for the update on this, Im still interested in doing this however cost being an issue it has to wait.

[dracolnyte]

im not giving up either lol

[NPuter]

So, you guys want to install the light/rain sensor along with me?
It looks like that is the only option...

[dracolnyte]

David, if we get a rain and light sensor, do we need to program that in VCDS to work properly or is it plug and play? if we do need to vag it, which module/byte/bit is it?

[dracolnyte]

check out this thread http://forums.vwvortex.com/showthread.php?2626178-Rain-Light-Sensor-Added-to-Car-Successfully!!!!!!!!!!!!!!!!!!!!!!!!!&p=70670147&viewfull=1#post70670147

its three wires, power, ground and LIN bus
http://dataton.net/vw/mod_prep/rain_light_sensor-connector_side.jpg

im thinking if theres anyway i can trick the car into thinking that there is a light sensor installed by shorting the power to the ground with a load resistor. And since there is no signal from the third wire, car might think that it is always night time so all we really need is the auto switch

[DavidB8]

The car uses the lin bus wire to know if the sensor is there, not the power wires.

I'd have to look the coding up but you do have to VCDS it. I'm not at my car so I don't have access to all my modules for coding. At the very least byte 22 bit 0 on module 9.

Ok so to put this one to rest, if someone in the US can get me a sensor from ECS (I'll pay for it) and ship it to me I'll replace my factory sensor with this one and see if it will function. The reason I ask for someone in the US is because shipping from ECS is brutal to Canada and this part should be small enough to get and ship through USPS at a fraction of the cost. FYI they want almost a $100 to ship this part to me.. I didn't realize they where going to buy it a plane ticket.

Here is the link http://www.ecstuning.com/Search/Rain_Sensor/ES485115/ Yes it is only $9.95 for the part. With shipping to me from ECS $100!!!!!!! Please bend over.. No kissing or lubrication allowed....

Any takers?

[dracolnyte]

darnit!!! today my chinese vag908 decided to die on me EFFF!!!

on the side note, David, that is the rain sensor, your theory is to try and fool the car with that as if it was a lightsensor because it too uses a LIN bus?

[DavidB8]

It's a dual sensor. What may be possible for those that don't want or need the rain, simply mount the sensor under the dash. Always dark so the CH/LH will always be active. Of course trial is contingent on actually getting my hands one of these sensors.

[dracolnyte]

ya i get you. Maybe ask haroulli or nputer to ship it
oh wait, I can ask my roommate tmr, she has an address in florida

[DavidB8]

I figure about 15 minutes with that unit and I can tell you if you guys have a way to get the feature working.

[dracolnyte]

any way I could test it out by borrowing my friends car with an actual light sensor?

[dracolnyte]

alrighty, I got my roommates florida address, gonna order it now. If you get a chance to actually have it shipped to NT, we can test it out simultaneously.

[DavidB8]

Yeah if you don't mind doing some disassembly and rewiring on your friends car.

I'll post my request in the main forum as someone that is willing to help may not be reading this thread.

[dracolnyte]

we'll continue this tmr, it is 3am here in toronto. night

[DavidB8]

3pm here. Goodnight.

[NPuter]

dracolnyte - I don't have any problem ordering that for David, if you have not already done so... (never mind, I just saw that ocarbon took care of it)
For $9.99 I'll order one for myself anyway.

The P/N David sent me for the sensor when we were originally talking about this costs $170 from genuine - and you have to get the $30 adhesive kit...

If I do this, I'm going to install it properly; after yesterday, I really want auto wipers now. During the summers here, it rains every day, off and on, heavy and light, all afternoon long. I went out for a drive for about and hour and was constantly fiddling with the wipers. So right now, I would be doing this mostly for auto wipers... The light sensor and CH/LH is another perk.

(let this thread be another example of why we need chat)

[NPuter]

I just thought of something - you guys are saying that just leaving the sensor under the dash will give you CH/LH without the hassle of installing it on the mirror... Don't you have the have the switch turned to auto for this to work? If so, that would mean that your headlights will be on all the time....

Sent from my Nexus One using Tapatalk

[NPuter]

I just thought of something - you guys are saying that just leaving the sensor under the dash will give you CH/LH without the hassle of installing it on the mirror... Don't you have the have the switch turned to auto for this to work? If so, that would mean that your headlights would also be on all the time....

Sent from my Nexus One using Tapatalk



Sent from my Nexus One using Tapatalk

[dracolnyte]

well, if you look at how porsche models does it without light sensor, they have a switch position called "home" and so every time an owner gets out of their car, they will have to switch it to "home" to get the CH/LH effect. but since im just using it for the CH/LH effect, i might as well use it as my low beams too

[DavidB8]

Well I would wait for anyone else that is thinking of buying one of these. The rumour mill has whispered that the VW Lin Bus is not the same as the Audi. I still don't mind trying but we don't need to be cleaning out ECS only to find out that everyone has a $10.00 sensor for sale in the classifieds. If it was using the Can Bus then I wouldn't be to concerned since that has to be a specific ISO standard thanks to the US. However I have no idea about the Lin Bus language and how it's transmitted.

FYI there are 10 Audi sensors for sale on eBay.de for 44 euro each. They ship to the US but for 38 Euro. If you guys organized some people together you could do a single buy and split the shipping. http://cgi.ebay.de/AUDI-A4-A6-A5-Q5-REGENSENSOR-SPIEGEL-RAIN-SENSOR-REGEN-/350468504870?pt=Autoteile_Zubeh%C3%B6r&hash=item51998cfd26

[dracolnyte]

oh damn thanks for the heads up David, I almost hit order. Alright I'll wait for your good news

[haroulli]

Wow you guys were busy! Let me know if I can help. I do have VCDS.

[dracolnyte]

Okay! my cable is working again, software issue, not hardware. back in the game

[haroulli]

Well I would wait for anyone else that is thinking of buying one of these. The rumour mill has whispered that the VW Lin Bus is not the same as the Audi. I still don't mind trying but we don't need to be cleaning out ECS only to find out that everyone has a $10.00 sensor for sale in the classifieds. If it was using the Can Bus then I wouldn't be to concerned since that has to be a specific ISO standard thanks to the US. However I have no idea about the Lin Bus language and how it's transmitted.

FYI there are 10 Audi sensors for sale on eBay.de for 44 euro each. They ship to the US but for 38 Euro. If you guys organized some people together you could do a single buy and split the shipping. http://cgi.ebay.de/AUDI-A4-A6-A5-Q5-REGENSENSOR-SPIEGEL-RAIN-SENSOR-REGEN-/350468504870?pt=Autoteile_Zubeh%C3%B6r&hash=item51998cfd26

Thanks David. I found a few a while back that included the sticky adhesive but I'm sure it can be sourced some where else. Worse case at the dealer.

[dracolnyte]

Thought I give an update with the auto switch pics and how to remove:
http://i20.photobucket.com/albums/b216/dracolnyte/IMG00274-20110701-1256.jpg

basically remove the fuse panel, and the panel underneath and pop it out from behind. it is held in by metal spring clips and then just detach the wire, it has a small clip.
http://i20.photobucket.com/albums/b216/dracolnyte/IMG00275-20110701-1257.jpg

[DavidB8]

You know if the A5's don't come standard with Auto lights you could probably resell your old switch to one of them so they can add rear fog lights :)

Just not sure if they got something standard that we had as an option.

[dracolnyte]

You know if the A5's don't come standard with Auto lights you could probably resell your old switch to one of them so they can add rear fog lights :)

Just not sure if they got something standard that we had as an option.
oh great thanks for the idea!

i just want to further update with the progress
what I noticed is that the words "auto" on the euro switch light up red instead of the NA orange
http://a6.sphotos.ak.fbcdn.net/hphotos-ak-snc6/268874_246315842062120_100000511173238_1119348_446 5294_n.jpg

what I also notice is that when the switch is in auto mode, i ran a scan and it did not throw errors, it just acts as if it was daytime all the time. if only it can somehow be inverted that it is always night time
http://a4.sphotos.ak.fbcdn.net/hphotos-ak-ash4/270129_246315935395444_100000511173238_1119349_403 8870_n.jpg

[NPuter]

if only it can somehow be inverted that it is always night time
The way I see it, that wouldn't help. In that case, your headlights would be on all the time - a big price to pay for just CH/LH IMHO....

[dracolnyte]

The way I see it, that wouldn't help. In that case, your headlights would be on all the time - a big price to pay for just CH/LH IMHO....

I wouldn't mind, it was just 40 euros for CH/LH feature, I dont care for "auto" lights really since I am already switching them around between night and day anyways. I will just use the auto as the new "ON" during night time.

David, do you know which channel reads the input from the light sensor?

[naemcivic]

The way I see it, that wouldn't help. In that case, your headlights would be on all the time - a big price to pay for just CH/LH IMHO....

+1....money and time could be better spend else where.

[NPuter]

I wouldn't mind, it was just 40 euros for CH/LH feature, I dont care for "auto" lights really since I am already switching them around between night and day anyways. I will just use the auto as the new "ON" during night time.

David, do you know which channel reads the input from the light sensor?

Fair enough... When I do it, I'm going for the proper install though - mainly for auto wipers. We had that on/off heavy/light rain crap again yesterday - I couldn't go 30sec without touching the wiper stalk...

[haroulli]

I'm just wondering does anyone know if there is a rearview mirror from say a b6/b7 that would fit with the rain sensor perhaps without requiring replacing the windscreen. It's just a thought. I'm on the same page as nputer if I do this I'll do it right. Which mean we will need the following:

Rain sensor
P+ mirror
P+ windshield with mount
Auto switch
Wiring harness

[haroulli]

Just found a pretty nice guide on installing a windshield with rain sensor for the B8

http://www.glassmagazine.com/article/auto/2011-audi-a4-117785 (http://www.glassmagazine.com/article/auto/2011-audi-a4-117785)

[DavidB8]

You don't have to replace the windhield to do the mirror swap or add a the sensor. You also don't have to do one to have the other. Of course the trim that hides the sensor does need the base of the newer mirror if you want to hide the sensor. You don't really notice the sensor that much though without the trim.

[NPuter]

I'm not getting a new mirror or glass - I am just going to stick the sensor above the mirror - I am not too worried about how it will look...

[DavidB8]

Like I said it really doesn't stand out that bad. The mirror still hides most of it from the inside of the car.

[haroulli]

Not a good idea since the rain-sensor (remember it's a rain&light-sensor) needs to be mounted within the clearing range of the windshield wipers.
The link I posted in Januar was just to show a mounting option for those who don't have the large mirror bracket - simply adopt this way for the windshield.

David regarding the mirror I know it not necessary for the rain sensor. It's just for overall factory look.
Regarding the replacement of the windshield i was referencing this post on page 2 of this thread. which I don't know what's true since I don't think anyone has swapped out the P- for the Prestige option with the auto dim option which I think a lot of people did in the older B6/B7. I'm looking for a cheap grey one on eBay so I might be the first to confirm whether you need the larger mount or not.


Thanks for everyone's input I know I have more question than answers right now.

[DavidB8]

You need a larger mount if you swap the entire mirror, however you can open the mirrors and swap the mounts so you don't have to replace the windshield.
Someone has reported using lockwire to saw off the old mount. It's the wire used to hold bolts and nuts in place on race prepped cars. I believe the diameter was 0.25. Supposedly the wire broke a few times and took time but was successful. There are definitely more than one way to skin this cat.

For those that are not as well prepared to make harnesses I really do recommend you buy the harness from Kufatec. A lot of their harnesses are sometime a bit short but it's easier to lengthen a wire if needed than to make an entire harness.

[TR464]

David regarding the mirror I know it not necessary for the rain sensor. It's just for overall factory look.
Regarding the replacement of the windshield i was referencing this post on page 2 of this thread. which I don't know what's true since I don't think anyone has swapped out the P- for the Prestige option with the auto dim option which I think a lot of people did in the older B6/B7. I'm looking for a cheap grey one on eBay so I might be the first to confirm whether you need the larger mount or not.


Thanks for everyone's input I know I have more question than answers right now.

No, you won't be the first :-)

The mirrors you mentioned need the large mounting bracket.
Look at these pictures http://img4web.com/g/1TY7W and imagine the part shown in picture 5 being screwed in the middle of the larger mirror base (sorry, no more pics available) - this will mount any "large" mirror to the "small" mounting bracket.
Of course you can't put the light&rain sensor into this bracket, so you might go the way I showed before in the PDF.

[DavidB8]

P.S. I have a grey mirror. Whats your idea of cheap? :D

[haroulli]

TR646 i see what you mean. You guys must be pretty handy with a hack saw lol braver than me by far!

hmmm not wanting to insult you David but like less than $100 lol. I have a feeling my wife might freak if i get anything for the car right now! Is it auto dimming or just the standard one with the larger base for the rain sensor? Thanks for the offer :)

[DavidB8]

Yeah I think You may have to keep looking for a mirror. Good luck I'm sure if you wait long enough you may find one for that price. Mine is an auto dimming compass mirror.

[NPuter]

Any update on this? I am dying for the rains sensor [:(]

[haroulli]

Nputer since the recent posts by David I have decided I want to do this and I'm sourcing the stuff from ebay.de (not bought a thing yet but looking for some good deals).
I think the only kind of question about this is the wiring? Kufatec sells the loom for this but I have no idea of the fitment. I hope they supply the instructions.

This reminds me does anyone know if the High Beam assist can be retro fitted? I've seen a few rear view mirrors with that option and figure "hey why not". I'm just hoping that doesn't open a whole new can of worms!

[DavidB8]

This reminds me does anyone know if the High Beam assist can be retro fitted? I've seen a few rear view mirrors with that option and figure "hey why not". I'm just hoping that doesn't open a whole new can of worms!

Yeah it can be retro fitted. I know someone that did it and I've wired mine for it as well. One of these days I'll get around to offloading my spares including a Headlight assist mirror for a 2009 single zone AC car.


Any update on this? I am dying for the rains sensor [:(]

Still waiting for the sensor. Mat was finishing up some carbon work on my trim before he shipped it. Still not so sure the VW one will in our cars but I committed to testing it.

[NPuter]

Yeah it can be retro fitted. I know someone that did it and I've wired mine for it as well. One of these days I'll get around to offloading my spares including a Headlight assist mirror for a 2009 single zone AC car.



Still waiting for the sensor. Mat was finishing up some carbon work on my trim before he shipped it. Still not so sure the VW one will in our cars but I committed to testing it.

Ok sounds good David. Can we even buy the VW one anymore?

[dracolnyte]

Ok sounds good David. Can we even buy the VW one anymore?

we cant buy the vw anymore, ECS probably saw this thread and jacked up the price [>_<]

[DavidB8]

Well there is a different cheap one still available I think. I would wait though to see if it even works. If it does by some miracle I will have a cheap one for sale.

If not.... Well I will have a cheap one as a Christmas ornament.

[NPuter]

Well there is a different cheap one still available I think. I would wait though to see if it even works. If it does by some miracle I will have a cheap one for sale.

If not.... Well I will have a cheap one as a Christmas ornament.

I call dibs [;)]

[dracolnyte]

I call dibs [;)]

darn! i was too slow!

[haroulli]

Ha im like 2hrs too late!

I'm finding all sorts of rain sensors on eBay.de they all "look" the same can't verify if they are or not. We will just have to sit tight since David has one on the way.

[NPuter]

I am still doubtful that the VW sensor will work. It would be a pleasant surprise though...

[dracolnyte]

any update on the light sensor? has it arrived yet?

[DavidB8]

Nope still waiting on Matt.

[haroulli]

Are you still waiting on Matt :P

Not that you don't have better things to do!

[Daze513]

Wanna bring this back up! Any luck on you guys doing the retrofit. I'm really interested in doing this. Thanks guys!

[DavidB8]

I recently received a couple of VW sensors that I am going to test on my car. I don't have a lot of time but should only take a few minutes to swap out the VW and Audi sensors to see what happens.

[NPuter]

I recently received a couple of VW sensors that I am going to test on my car. I don't have a lot of time but should only take a few minutes to swap out the VW and Audi sensors to see what happens.

Awesome David, I am stil pretty motivated to do this retrofit. Would you be able to offer a kit? (Like you did for the advanced key retrofit.) Or would it just be easier to source the parts myself?

Thanks for your continued research [up]

[DavidB8]

Well once I figure it out kits are always a possibility. Hasn't been a good week...

I got laid off this week and suffered some nerve damage to my face last week that is going to take a few months to heal. So Audi kits and research will be taking priority soon. I just have to get my car together belongings sold and get my ass back down south.. Going to be busy for a bit.

[NPuter]

Well once I figure it out kits are always a possibility. Hasn't been a good week...

I got laid off this week and suffered some nerve damage to my face last week that is going to take a few months to heal. So Audi kits and research will be taking priority soon. I just have to get my car together belongings sold and get my ass back down south.. Going to be busy for a bit.

Sorry about all that David [:(] Please do not feel pressured by all this car stuff - there are much more important things in life...

[haroulli]

Just updating this thread as per David's findings.


I tried the VW light sensor on my car and it just threw and error. So that's out for those that where thinking about trying to use the VW sensor.

I'm pretty sure the only way to do this is with the OEM sensor.

[DavidB8]

Yeah I even got an aftermarket kit for the VW's and some Audi's that is supposed to be able to take place of the sensor (yes I did look into other options) but as luck didn't have it, it's doesn't fit our plugs and is wired differently. There may be a solution down the road but our cars are still to unique in it's wiring for a mass produced solution.

[dracolnyte]

okay so the next step would be, how much is the OEM light sensor and what is the part number?

edit:
Rain Sensor: 8K0 955 559
Adhesive kit: 4E0 955 609
Plug: 1C0 973 119 B
Wires: 1K0 973 333 x2
Switch: 8K0 941 531 (AL, AS,??)

will this work? if only they ship to NA
http://www.ebay.ca/itm/250956695430?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

[Daze513]

There has to be a way we can get something to work. Im really interested in this one.

[haroulli]

edit:
Rain Sensor: 8K0 955 559
Adhesive kit: 4E0 955 609
Plug: 1C0 973 119 B
Wires: 1K0 973 333 x2
Switch: 8K0 941 531 (AL, AS,??)

will this work? if only they ship to NA
http://www.ebay.ca/itm/250956695430?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Its the right part number, so yeah it will fit. You can get the wiring from Kufatec, it might be easier then trying to source it from Audi.


There has to be a way we can get something to work. Im really interested in this one.

With this I think it comes down to actually experimenting and doing the research. I think if Kufatec is putting out a wiring you can do it.

[TexasEric]

With this I think it comes down to actually experimenting and doing the research.

Anyone know how to interpret the Audi wiring diagrams?



Pin 1 - Goes to "109" ??
Pin 2 - Goes to "355" ??
Pin 3 - Goes to "Connection 11 in the Main Wiring Harness" or maybe Pin 2 of 16 in the Vehicle Electrical System Control Module.



I can read it, I just can't figure out what it means.


http://www.audizine.com/gallery/data/500/thumbs/RainSensorWiring.gif (http://www.audizine.com/gallery/showphoto.php?photo=64510&title=rain-sensor-wiring&cat=500)

[TR464]

Anyone know how to interpret the Audi wiring diagrams?



Pin 1 - Goes to "109" ??
Pin 2 - Goes to "355" ??
Pin 3 - Goes to "Connection 11 in the Main Wiring Harness" or maybe Pin 2 of 16 in the Vehicle Electrical System Control Module.



I can read it, I just can't figure out what it means.


http://www.audizine.com/gallery/data/500/thumbs/RainSensorWiring.gif (http://www.audizine.com/gallery/showphoto.php?photo=64510&title=rain-sensor-wiring&cat=500)

The line in the diagram had to be virtually splitted to avoid junction; search for the same number tag within the wiring diagram and you'll see where the line continues.

[Peeet]

Anyone know how to interpret the Audi wiring diagrams?



Pin 1 - Goes to "109" ??
Pin 2 - Goes to "355" ??
Pin 3 - Goes to "Connection 11 in the Main Wiring Harness" or maybe Pin 2 of 16 in the Vehicle Electrical System Control Module.



I can read it, I just can't figure out what it means.


http://www.audizine.com/gallery/data/500/thumbs/RainSensorWiring.gif (http://www.audizine.com/gallery/showphoto.php?photo=64510&title=rain-sensor-wiring&cat=500)

PIN 1 goes to, fuse carrier ST2, fuse number 12
PIN 2 goes to, earth
PIN 3 goes to T16b PIN 2 (J519)

http://i41.tinypic.com/263aosl.jpg
T16b you can find that connector under your steeringwheel, the brown connnector.


http://i42.tinypic.com/1rrvk0.jpg
ST2, left hand drive car


Peet

[TexasEric]

PIN 1 goes to, fuse carrier ST2, fuse number 12
PIN 2 goes to, earth
PIN 3 goes to T16b PIN 2 (J519)

Peet

OK, I am thoroughly impressed [hail]... Those two numbers (109 and 355) in my previous post just connect to the long non-descript line at the bottom of the page; 355 is on another page. So, it makes sense that 355 is earth (ground). But how did you better track down where pins 1 and 3 actually connect to??

[haroulli]

OK, I am thoroughly impressed [hail]... Those two numbers (109 and 355) in my previous post just connect to the long non-descript line at the bottom of the page; 355 is on another page. So, it makes sense that 355 is earth (ground). But how did you better track down where pins 1 and 3 actually connect to??

This is a translated version of the German Kufatec Wiring loom for Rain, Auto Dim and Light Assist guide. If anyone has an adjustments they want to make let me know.
http://dl.dropbox.com/u/926407/37140Guide1.pdf

[franktdi]

im not sure if u got got the ch/lh to work yet, i just came across your thread. i have a 2012 golf and i was able to get the ch to work without the euro switch. email me if i can be of any help.

[dracolnyte]

im not sure if u got got the ch/lh to work yet, i just came across your thread. i have a 2012 golf and i was able to get the ch to work without the euro switch. email me if i can be of any help.

we know that in VW cars, a simple tick of a box in VAG can activate CH/LH function in cars without auto switch by switching to low beams.
unless you discover something else, please share. thanks

[haroulli]

I think we decided that the rain sensor is necessary since it has the light sensor in it. Unfortunately I have not been able to get this working and my VCDS cable is on the fritz. I have one on order.

You can follow my progress or add any comments that may help here http://www.audizine.com/forum/showthread.php/468600-Rain-amp-Light-Sensor-and-Headlight-Assist-Wiring-VAG-COM-Help!

[TexasEric]

This morning I stopped by a local auto glass shop to get their thoughts on taking the basic mirror-mount off the windshield. The guy said he could take it off in 5 minutes with a 20% chance of cracking the windshield, but that really depends on how tight it is stuck to the glass. He said he would be able to tell pretty quickly if it was doable and could stop if it looked to difficult, so I let him try. First thing he did was to grab the grey post sticking from the class and twist 90 degrees real hard. The whole mirror and post came off with his hand leaving only a metal nub. He then took a pair of pliers and a portable blow-torch to the nub left on windshield. I kind of freaked out about the blow torch. He said the heat from the blow torch was not going to be a problem as long as he kept it moving. He wiggled the metal nub and said it was pretty tight, but he felt good he could do it. 30 seconds later, the metal nub was off. He quickly took a flat razor and scraped off the remaining glue. The nub and glass were very hot. So... long story short (too late)... I have a perfect windshield with no rear-view mirror attached. If anyone is in the Dallas area and wants to give this a try, contact Adren at Titan Auto Glass. Great guy and great service.

[haroulli]

This morning I stopped by a local auto glass shop to get their thoughts on taking the basic mirror-mount off the windshield. The guy said he could take it off in 5 minutes with a 20% chance of cracking the windshield, but that really depends on how tight it is stuck to the glass. He said he would be able to tell pretty quickly if it was doable and could stop if it looked to difficult, so I let him try. First thing he did was to grab the grey post sticking from the class and twist 90 degrees real hard. The whole mirror and post came off with his hand leaving only a metal nub. He then took a pair of pliers and a portable blow-torch to the nub left on windshield. I kind of freaked out about the blow torch. He said the heat from the blow torch was not going to be a problem as long as he kept it moving. He wiggled the metal nub and said it was pretty tight, but he felt good he could do it. 30 seconds later, the metal nub was off. He quickly took a flat razor and scraped off the remaining glue. The nub and glass were very hot. So... long story short (too late)... I have a perfect windshield with no rear-view mirror attached. If anyone is in the Dallas area and wants to give this a try, contact Adren at Titan Auto Glass. Great guy and great service.

LOL thats a story! How do you intend to mount the new mirror? If so where you going to get the mount from?

[TexasEric]

LOL thats a story! How do you intend to mount the new mirror? If so where you going to get the mount from?

I have already ordered a bunch of new parts from genuineaudiparts.com including the mount (701845543) and the adhesive (D000703A1). Only down-side is that I will be without a rear-view mirror for a week.

[haroulli]

Eric, what about the Rain/Light sensor, you know thats required to get the CH/LH functioning right? I guess thats phase 2 of your project. I'm doing it the other way around.

[TexasEric]

Eric, what about the Rain/Light sensor, you know thats required to get the CH/LH functioning right? I guess thats phase 2 of your project. I'm doing it the other way around.

You are correct... First, I will get the proper mirror installed and run the wires. In the future, I will change my headlight switch and add the sensor. The sensor is very expensive so I want to spread this out over time. When I am done with this first step, I only want to have to mess with a few wires in the switch and pop in the sensor when the time comes.

I will post some pictures and DIY tips when I get started. The parts are supposed to arrive some time this week. My first question is about how the windshield will look from the outside. I am estimating that the black dot on the windshield will be covered by the mirror, but I am also thinking I will get a small bottle of black model paint and paint the glass underneath the new mirror parts.

[haroulli]

Yeah there is actually a black cover that goes on the inside of the mirror wire channel. You will also need the clip that will hold the sensor in place. You can find the sensor on ebay.de

[DavidB8]

yeah the cover is two parts, one rests against the glass and the wires run through it the one you see from inside the car snaps over it to cover them.

[haroulli]

I got mine from ECS but if you need the Part numbers let me know and I can see if I have the packaging.

David, I hope your well did you relocate ok?

[TexasEric]

I have already ordered a bunch of new parts from genuineaudiparts.com including the mount (701845543) and the adhesive (D000703A1). Only down-side is that I will be without a rear-view mirror for a week.

FAIL... Just got my parts in and these are not correct... [headbang] The mount and adhesive I mentioned above are the mount and adhesive for the plain mirror--yes, the same ones I had a glass-guy remove from my windshield. I may be screwed here because the mount that I need does not have a part number and is marked in ETKA as "Retaining plate not a spare part". If anyone is looking at ETKA, check illustration 845-00. Anyone else know where to get a part number? And then, which adhesive? My adhesive is marked as "glass-metal" and I am betting that the retaining plate I need is plastic. UGH!!! [headbang]

[TexasEric]

Wires: 1K0 973 333 x2


Careful, people.... This part number is not for wires, but for a connector that looks like the female-end to the 1C0973119B plug. If we are truly looking for wires, the correct part is: 000979009E.

[dracolnyte]

any updates on this? lets say if i buy the light sensor, the harnesses and all the wires, where do i plug them in? and is it going to be plug and play?

[TexasEric]

any updates on this? lets say if i buy the light sensor, the harnesses and all the wires, where do i plug them in? and is it going to be plug and play?

I am still trying to source the proper windshield mount.

The proper wiring will take you across the top of the windshield, down the driver's A pillar and to the fuse box. If you only want the power mirror (and not the sensor), you can tap the front dome light. As for the sensor, from what I am seeing, it does not look like that it can be installed in the non-sensor glass and look OEM (even with the proper mount). I have not yet confirmed it, but I believe that if we were to put the sensor up in the OEM location, it will sit directly under the quarter-sized black dot inside the basic windshield glass. That dot pretty much makes the sensor useless in that location. I hope to know more shortly.

[dracolnyte]

I am still trying to source the proper windshield mount.

The proper wiring will take you across the top of the windshield, down the driver's A pillar and to the fuse box. If you only want the power mirror (and not the sensor), you can tap the front dome light. As for the sensor, from what I am seeing, it does not look like that it can be installed in the non-sensor glass and look OEM (even with the proper mount). I have not yet confirmed it, but I believe that if we were to put the sensor up in the OEM location, it will sit directly under the quarter-sized black dot inside the basic windshield glass. That dot pretty much makes the sensor useless in that location. I hope to know more shortly.
im just doing it purely for the coming home/leaving home functions, so essentially what youre saying is, i can store the light sensor in the fuse box, leave it dangling there and hook it up somewhere in the fuse to get it working?

[TexasEric]

im just doing it purely for the coming home/leaving home functions, so essentially what youre saying is, i can store the light sensor in the fuse box, leave it dangling there and hook it up somewhere in the fuse to get it working?

Sorry, I may have been confusing. The sensor wires connect to the fuse box AND the headlight switch (yeah, I forgot to mention that one). The sensor itself has to be attached to the windshield somewhere without it being blocked by anything.

[dracolnyte]

Sorry, I may have been confusing. The sensor wires connect to the fuse box AND the headlight switch (yeah, I forgot to mention that one). The sensor itself has to be attached to the windshield somewhere without it being blocked by anything.

thanks you just saved me a ton of research. i am not looking for functioning auto lights, i just want the CH/LH come on every time i put the light switch into "auto". Since I already have the light switch, all i need now is the light sensor and wires to hook them up to the fuse box and headlight switch, am i correct?

[dracolnyte]

i just went through all the threads again including haroulli's and i think i might have came up with an idea for my solution. the light sensor consist of three connections
PIN 1 goes to, fuse carrier ST2, fuse number 12 (power)
PIN 2 goes to, earth (ground)
PIN 3 goes to T16b PIN 2 (J519) (communication)
so is the T16b the module that the light sensor feeds its signals to? and since it only differentiates between day or night = on or off = 1 or 0 = power or ground, couldnt i just ground T16b pin 2, put my car on auto and test if its either always xenon on or always off? if it was always off then I would just need to directly feed ST2, fuse 12 to T16b for my constant "night" mode. but not sure if fuse 12 might provide too much voltage, so I will have to either hook it up to a resistor or get the actual light sensor to get the correct voltages going.

[Calister]

i just went through all the threads again including haroulli's and i think i might have came up with an idea for my solution. the light sensor consist of three connections
PIN 1 goes to, fuse carrier ST2, fuse number 12 (power)
PIN 2 goes to, earth (ground)
PIN 3 goes to T16b PIN 2 (J519) (communication)
so is the T16b the module that the light sensor feeds its signals to? and since it only differentiates between day or night = on or off = 1 or 0 = power or ground, couldnt i just ground T16b pin 2, put my car on auto and test if its either always xenon on or always off? if it was always off then I would just need to directly feed ST2, fuse 12 to T16b for my constant "night" mode. but not sure if fuse 12 might provide too much voltage, so I will have to either hook it up to a resistor or get the actual light sensor to get the correct voltages going.

Hi, Grounding or pulling T16b Pin 2 up to 12V will not work. This connection is the car network signal it is not a simple on/off signal. The car network signal is used by the calculator to "communicate" with car's elements. The rain/light sensor is one of them and it includes a processor allowing it to send information to the calculator such as OK status at power up, rain and light levels.
The only way to have CH/LH and/or autolight and/or autowipe working is to connect a rain/light sensor to this T16b Pin2. If the sensor is stored in the fuse box it'll consider it's night and no rain all the time. So your head lights will remain on all the time if the switch is on Auto and your wipers will not work in cadenced mode (wipers cadence being set by rain level). However the wipers will work in permament modes only.
Hope that helps.

[dracolnyte]

Hi, Grounding or pulling T16b Pin 2 up to 12V will not work. This connection is the car network signal it is not a simple on/off signal. The car network signal is used by the calculator to "communicate" with car's elements. The rain/light sensor is one of them and it includes a processor allowing it to send information to the calculator such as OK status at power up, rain and light levels.
The only way to have CH/LH and/or autolight and/or autowipe working is to connect a rain/light sensor to this T16b Pin2. If the sensor is stored in the fuse box it'll consider it's night and no rain all the time. So your head lights will remain on all the time if the switch is on Auto and your wipers will not work in cadenced mode (wipers cadence being set by rain level). However the wipers will work in permament modes only.
Hope that helps.
yes this helps! thanks for confirming.

[haroulli]

I'm still waiting on my VCDS cable so I've not made any more progress but yes 16b pin2 is for communication etc.

[dracolnyte]

I'm still waiting on my VCDS cable so I've not made any more progress but yes 16b pin2 is for communication etc.

what a coincidence, my vcds cable just bricked, where did you purchased yours?

[haroulli]

what a coincidence, my vcds cable just bricked, where did you purchased yours?

I ordered one from flashinthebox.com but it got lost in the post so he sent me another but wasn't the same version, the exe for the VCDS version was corrupt and the download link he sent me was for the Chinese version. Its a frggin mess. I also ordered one from dealextreme.com but it hasn't come yet.


I made some more progress today though! I ran a continuity test and found the fuse was blown! I was looking at wrong fuse! However, I still get the same error with or without the fuse and with or without the sensor plugged in. So I'm thinking its the sensor :( I will ordered a new(used) one from FleaBay.De

[dracolnyte]

I ordered one from flashinthebox.com but it got lost in the post so he sent me another but wasn't the same version, the exe for the VCDS version was corrupt and the download link he sent me was for the Chinese version. Its a frggin mess. I also ordered one from dealextreme.com but it hasn't come yet.


I made some more progress today though! I ran a continuity test and found the fuse was blown! I was looking at wrong fuse! However, I still get the same error with or without the fuse and with or without the sensor plugged in. So I'm thinking its the sensor :( I will ordered a new(used) one from FleaBay.De

yay! one step closer to my coming home/leaving home lights rofll

[haroulli]

Ok I got my second sensor in the mail on Thursday and same results!

At this point i'm not sure what to do, I think my downfall was getting ambitious and getting the Headlight assis loom, perhaps thats what is messing it up. But if anyone else wants to give it a stap I can sell you my other sensor.

[dracolnyte]

Ok I got my second sensor in the mail on Thursday and same results!

At this point i'm not sure what to do, I think my downfall was getting ambitious and getting the Headlight assis loom, perhaps thats what is messing it up. But if anyone else wants to give it a stap I can sell you my other sensor.
how much?

[haroulli]

PM Sent

[TexasEric]

FAIL... Just got my parts in and these are not correct... [headbang] ...

Touchdown!!! I successfully replaced my mirror. I did not do a full-blow electrical implementation yet (just power for the compass), but I I have the right mirror installed and the option to add more as time and money allow... http://www.audizine.com/forum/showthread.php/483450-Almost-DIY-Rearview-Mirror-Upgrade.

[haroulli]

Fantastic News! It's working! New RLS fixed the ongoing issue. The one you need is 8K0 955 559 no letters on the end!

[dracolnyte]

Fantastic News! It's working! New RLS fixed the ongoing issue. The one you need is 8K0 955 559 no letters on the end!

That's great news! how did you hook it up? and details!

[haroulli]

Right now is just plugged in to the harness loose with the butt end tucked into the headliner. I haven't tested the rain feature yet but the light feature is working. Next step is to get the new windshield and mirror installed. I'll try and take some video tomorrow.

[dracolnyte]

awesome progress, keep use posted. btw where did you get the harness to plug into the light sensor from?

[haroulli]

Kufatec is where I got the harness. It includes the headlight assistant for the high beam and the mirror that goes with it. So you might have to do some adjusting to the connector to fit the regular mirror....I think.

[haroulli]

These are the parts I have ordered and will be required to get this working as OEM. The other parts you can't see in these pictures is the the RLS windsheild with the larger adapter the auto option headlight switch and the loom I got from Kufatec. The loom I purchased includes the High Beam assist. This part is not working yet dispite having it wired in and the correct mirror (my mirror is for 3 zone climate, however I only have 1 zone. This is ok but you cannot go the other way!). The only other word of warning is get the right RLS part number 8K0 955 559 with no letters!

http://i1227.photobucket.com/albums/ee421/harismic/3f80dea5.jpg
http://i1227.photobucket.com/albums/ee421/harismic/75c15eac.jpg
http://i1227.photobucket.com/albums/ee421/harismic/11f647bb.jpg
http://i1227.photobucket.com/albums/ee421/harismic/9afe127e.jpg
http://i1227.photobucket.com/albums/ee421/harismic/8c535406.jpg
http://i1227.photobucket.com/albums/ee421/harismic/b7ddf75d.jpg
http://i1227.photobucket.com/albums/ee421/harismic/814694e4.jpg

[Daze513]

Ok so you got the light feature to work, with the base mirror installed and the sensor you mentioned? The sensor doesn't look that bad if that's all it takes. Other than the switch of course. I would do it and leave th sensor exposed and tuck the wires if that's all it takes.

[NPuter]

Ok so you got the light feature to work, with the base mirror installed and the sensor you mentioned? The sensor doesn't look that bad if that's all it takes. Other than the switch of course. I would do it and leave th sensor exposed and tuck the wires if that's all it takes.

Same here, I wouldn't want to go through the whole process of swapping the mirror. - so all wee need is the sensor, harness, and auto light switch?

Sent from my GT-P7510 using Tapatalk 2

[haroulli]

Same here, I wouldn't want to go through the whole process of swapping the mirror. - so all wee need is the sensor, harness, and auto light switch?

Sent from my GT-P7510 using Tapatalk 2

Yes but the Rain feature wont work since it doesn't quite make contact with the windshield. I also forgot to mention you need the silicon pad too. It is not adhesive it just sits between the sensor and the window.

If any one wants to do it to their Q7 I have two sensor I can sell them!

[Daze513]

Ok so perfect that's what I'll do. The rain feature for me isn't a big deal. But the auto lights are. Could you pleas post the part numbers I need to order for wires, sensor, etc?

[NPuter]

Yes but the Rain feature wont work since it doesn't quite make contact with the windshield. I also forgot to mention you need the silicon pad too. It is not adhesive it just sits between the sensor and the window.

If any one wants to do it to their Q7 I have two sensor I can sell them!

What else would be involved for the rain sensing to work? That is or of the main reasons that I was thinking about doing this...

Sent from my GT-P7510 using Tapatalk 2

[haroulli]

Well really the only way I know how and I'm doing is going the OEM route with the windshield so it can actually press against the window with the silicon pad. You could try what texaseric has tried and get a glass shop to blow torch the existing mount off and see if you can get a new mount from them from a P+ Audi. There's also duct tape :P

[haroulli]

Here is the finished product.

Glass people were asses and I had to sign a waiver. But anyways I got it installed, the mirror was a pain to get on and it doesn't feel too secure. The black backing and the wire cover needed to but cut to size. You can see a tiny gap in the picture but from a seated position it looks flush. The rain sensor gel doesn't look solid black, I guess because it bubbled but its not so bad. I tested the rain feature and it does work.

Oh if anyone has the stock code for their P+ rain sensor please share, mine looks like it came from an A3 because thats what all the settings reflect. Never the less it still works.

http://i1227.photobucket.com/albums/ee421/harismic/0b732a29.jpg
http://i1227.photobucket.com/albums/ee421/harismic/5bf7ef14.jpg
http://i1227.photobucket.com/albums/ee421/harismic/f98245d2.jpg
http://i1227.photobucket.com/albums/ee421/harismic/4ac5e242.jpg
http://i1227.photobucket.com/albums/ee421/harismic/9613ad6a.jpg

[dracolnyte]

wow that looks legit, sick

[haroulli]

Haha thanks, thats what I was going for nice and factory looking. My wife just moved my car to the drive way and I asked her if notice the mirror and of course she didn't [rolleyes]

[sorzano]

Haha thanks, thats what I was going for nice and factory looking. My wife just moved my car to the drive way and I asked her if notice the mirror and of course she didn't [rolleyes]

Hello.
I write to you with the intention of seeking help. I have the same problem as you did with the A4 sensor lights. I installed the sensor, the new moon, new mirror without glare and light control. I got grounded cord, another current with fuse wire 5 and another to canbus. I enabled but not working.

[haroulli]

Hello.
I write to you with the intention of seeking help. I have the same problem as you did with the A4 sensor lights. I installed the sensor, the new moon, new mirror without glare and light control. I got grounded cord, another current with fuse wire 5 and another to canbus. I enabled but not working.

So you enabled it in Vag-Com? Does it give you an error on the DIS? Are you using the right RLS? 8K0 955 559 with no letters?

[maquino]

Nice work haroulli. What was the total cost when all was said and done for the retrofit? Also, what's the difference between that mirror and the one with the compass?

[haroulli]

I can't really remember how much it cost all in all. It's probably around $400-$500. The mirror I have can be used for high beam assist other than that there is no difference than a regular auto dim mirror or one with a compass. You will want to make sure if you car has 3zone ac the mirror supports it. Typically it has the vent cut into the plastic cap but you will need to check.

Hope that helps.


Sent from my iPad using Tapatalk (http://tapatalk.com/m?id=1)

[yaxo1111]

Hi, can you do short DIY how to install rain/light sensor with wiring, what goes where, for those of us who just want CH/LH

thanks

[Jmstrag]

Hi, can you do short DIY how to install rain/light sensor with wiring, what goes where, for those of us who just want CH/LH

thanks

I second that request! A right up would be much appreciated as im sure numerous members would be interested in this mod[wrench]

[haroulli]

Ok ok I'll put something together. Unfortunately it was a lot of trial and error and it was a while ago. I'll do my best.


Sent from my iPad using Tapatalk

[haroulli]

OK i'm finished with my DIT, its rough but should give you a good ideahttp://www.audizine.com/forum/showthread.php/582637-DIY-B8-Auto-Dim-Mirror-and-Rain-Light-Sensor-(RLS)?p=9501158#post9501158

[Bori]

So what's the verdict? Can you set coming home lights on non-light sensor models (without any hardware changes)?

[haroulli]

So what's the verdict? Can you set coming home lights on non-light sensor models (without any hardware changes)?

No you can't! Get the RLS and you can!

[Piponxs]

Thread up. Hi there. I was reading your posts, maybe you guys even changed your vehicles, but too bad no one figured out how to make ch/lh work. I saw some guys managed to do it on new Seat , they paired codes somehow with interiour lights. So when that is on fog lights are on. I think it was via Obdeleven .

[dracolnyte]

Thread up. Hi there. I was reading your posts, maybe you guys even changed your vehicles, but too bad no one figured out how to make ch/lh work. I saw some guys managed to do it on new Seat , they paired codes somehow with interiour lights. So when that is on fog lights are on. I think it was via Obdeleven .
Hey do you have link to that thread?

[Piponxs]

Hey do you have link to that thread?

Sure sir https://youtu.be/udi_7Q4Q-s0

Sorry I dont understand spanish. Btw I have A4 B8.5 without rain/light sensor.

[Piponxs]

Here, can we do the same
http://forum.obdeleven.com/thread/3291/coming-home-lh-on