OEM brake upgrade for 3.0T?

[kingDL]

Hello,

I just bought a 2009 A6 3.0T Avant.

I am going to tune this car soon, but I am feeling that the OEM front brakes doesn't really cut it and I don't think a swap of pads will be enough. Recently did the Q5 Brembo swap on my A4 B7 and it has amazing brakes now, so I'm looking for something similar. The problem seems to be that there isn't a lot of people doing brake upgrades to their A6's(at least compared to the A4 community), so I can't find any writeups about it. Maybe I am not searching good enough. I have found out some stuff, but I need assistance to find out what fits or not. Can anyone help?

1. I read that A8 brakes should work on the A6 4F/C6 straight bolt on. Is this true or will it affect ET? There is an A8 setup that has 360mm discs and 2-pot floating calipers. This is a very cheap upgrade, the calipers can be bought for about $100 each new.

2. Some combination of RS4/RS6 calipoers/discs seem also to be bolt on? But Im unsure what part numbers. Does anyone know? A german ebay seller has been offering a kit like this for the A6 for a long time:
http://www.ebay.de/itm/Audi-RS6-Bremse-fur-A8-quattro-RS6-Bremssattel-S8-AUDI-Ersatzteile-RS-6-Bremse-/382110297788?hash=item58f78c6ebc:m:mQ6ReYhVwtf-rzkk7kpwsIA

I know that there is StopTech and Brembo GT kits for this car, but they are like $4000. If I source OEM parts on the junkyard, I can find a pair of RS6 calipers for $5-600.

any input on bigger front brakes for this car is appreciated. I would prefferebly not want to use discs larger than 365.

[ApexRex]

There is a Porsche brake upgrade that the pre facelift cars were doing, don't know if it works on the C6.5, 2009-2011. I think they were off of the Cayenne. 17Z or something like that? It's been a while since I looked.


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[Greenster]

No one at the dealer knows? I'm sure a tuner would know.

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[2010A6]

There is a Porsche brake upgrade that the pre facelift cars were doing, don't know if it works on the C6.5, 2009-2011. I think they were off of the Cayenne. 17Z or something like that? It's been a while since I looked.


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I heard that route does require a custom bracket to be made though


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[NASAudi]

An S6 OE brake swap is where its at. 385mm brakes. I did it to my 3.0t. https://uploads.tapatalk-cdn.com/20170812/11d42eaa75a6d591e235b07537b70cb7.jpg

NASAudi

[kingDL]

An S6 OE brake swap is where its at. 385mm brakes. I did it to my 3.0t. https://uploads.tapatalk-cdn.com/20170812/11d42eaa75a6d591e235b07537b70cb7.jpg

NASAudi

Too big--- that requires at least 20" rims, no? I need to use winter tires on this car and they are insanely expensive in anything larger than 18".

[NASAudi]

19's

NASAudi

[Jeremyboukaia]

https://uploads.tapatalk-cdn.com/20170813/13cfabe284ab424b090a30041a2cac39.jpg
These are 17z off a Touareg they are 330 mm Volvo rotors. These bolt on but need the caliper lugs shaved alittle


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[SinCityA6]

Why do you feel there’s a need for replacing your brakes? The 3.0 come standard with 347 mm front desk and 330 mm in the rear. What type of driving are you planning on doing that would require changing your brakes?
Unless you’re taking your car to the track on a regular basis or participating in an autocross, changing out your brakes for something different it is overkill in my opinion! That is unless you want to have bigger brakes for looks! Upgrading your current set up with a different rotors from ECS or Adam’s rotors and adding Akebono euro ceramic pads and stainless steel brake lines will resolve all of your concerns regarding the brakes being underpowered for the car.


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[kingDL]

Why do you feel there’s a need for replacing your brakes? The 3.0 come standard with 347 mm front desk and 330 mm in the rear. What type of driving are you planning on doing that would require changing your brakes?
Unless you’re taking your car to the track on a regular basis or participating in an autocross, changing out your brakes for something different it is overkill in my opinion! That is unless you want to have bigger brakes for looks! Upgrading your current set up with a different rotors from ECS or Adam’s rotors and adding Akebono euro ceramic pads and stainless steel brake lines will resolve all of your concerns regarding the brakes being underpowered for the car.



Let's take that mindset and reverse it somewhat: Why does the RS6 have 8-pot brembo calipers in front? It hardly weights any more than my 3.0T. I'm quite sure that the 347mm 1-pot brakes would stop the RS6 too, maybe with even smaller discs, say 321mm.

I have an aggresive driving style and I want brakes that I can depend on even when the speed is twice the legal limit! [:d] I know a caliper with more pots will give me what I am looking for, and if I can do an OEM upgrade it will be cheap too.

[juniorcruzer]

put a decent pad on this car, and you would be surprised at how well it stops. I have an aggressive driving style myself, and not once have I ever thought about upgrading to a big brake kit when street driving. Now if you are talking track, that is a whole different story.

Jon

[kingDL]

put a decent pad on this car, and you would be surprised at how well it stops. I have an aggressive driving style myself, and not once have I ever thought about upgrading to a big brake kit when street driving. Now if you are talking track, that is a whole different story.

Jon

Yeah but say you could spend another extra $400 to make the brakes even more effective. Would you do it?

EDIT: From what I understand it could be possible to use A8 brakes in front. The discs needs to be replaced also soon. So the extra cost over the 347mm oem setup would be the larger 360 discs, but they can be found at about the same price. The pads are also the same price. A set of brand new 2-pot A8 calipers is about $220. The OEM brake lines will propably work but I would change these into a setup of steelbraded ones, so maybe another $100.

So $320 extra to make the brakes more effective than just a pad swap. Even if they don't get much better, $320 is not alot of money.

[PreciseD]

Why does the RS6 have 8-pot brembo calipers in front?

Probably becasue that car is a lot faster.......

[juniorcruzer]

Yeah but say you could spend another extra $400 to make the brakes even more effective. Would you do it?

EDIT: From what I understand it could be possible to use A8 brakes in front. The discs needs to be replaced also soon. So the extra cost over the 347mm oem setup would be the larger 360 discs, but they can be found at about the same price. The pads are also the same price. A set of brand new 2-pot A8 calipers is about $220. The OEM brake lines will propably work but I would change these into a setup of steelbraded ones, so maybe another $100.

So $320 extra to make the brakes more effective than just a pad swap. Even if they don't get much better, $320 is not alot of money.

I would buy a slotted set of stock size rotors, and a good set of brake pads. Maybe also do stainless brake lines, little better peddle feel on the street and track. If you plan to track it, then upgraded brake fluid as well.

Jon

[kneel]

S6 Calipers with spindles

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[kingDL]

Hello,

after much searching around I have now found out 2 things:

1. There is an OEM Audi brake option which is called 1LL, which is only fitted to armoured A6's but is standard on many Audi A8 and VW Phaeton. This is bolt on 360x34mm discs with 2-pot calipers.

2. When I searched around I realized that both the calipers and the carries on the A6 are the same as on the S4 B6/B7. The only thing that differs is the discs which are 347x30mm instead of the S4's 345x30mm. That leads me to think that the Q5 calipers can be used on the A6 C6/4F also. I recently just did that mod on my A4 B7 so maybe I could just swap the calipers and pads from it.

EDIT: If you are not familiar with the Q5 brake mod; it's 4-pot fixed brembo calipers made in alu.

we will see what happens.

[Flad.Solo.View]

few bolt-on options from my top list:

1) Audi Q5 Brembo 4-pot calipers
347mm OEM Audi A6 C6 rotors

2) Brembo BM5/17Z
Mercedes A 230 421 08 12 (Ate 24.0132-0153.1) 330x32 rotors

3) Brembo 18Z
rotors:
Mercedes A 221 421 16 12 07
Mercedes A 221 421 11 12
Mercedes A 221 421 16 12

you only need to enlarge the center bore of Mercedes rotors from 67 to 68mm

if you need some help with part numbers etc.. PM me;)

https://a.d-cd.net/95a8551s-960.jpg
https://a.d-cd.net/c9a8551s-960.jpg
https://a.d-cd.net/43b6309s-960.jpg

[kingDL]

few bolt-on options from my top list:

1) Audi Q5 Brembo 4-pot calipers
347mm OEM Audi A6 C6 rotors


I'm gonna go with this option since I have the calipers already, I checked the brake lines and compared with the A4 B7 ones. The difference is only 5mm so maybe the custom steel braided lines I had made for the A4 will fit the A6 too.

Pairing this with Redstuff pads and Zimmerman sport rotors(drilled) all around. I will get back with pictures and result.

BTW: is it necessary to put the electric parking brake in service mode?

[Flad.Solo.View]

I'm gonna go with this option since I have the calipers already, I checked the brake lines and compared with the A4 B7 ones. The difference is only 5mm so maybe the custom steel braided lines I had made for the A4 will fit the A6 too.

Pairing this with Redstuff pads and Zimmerman sport rotors(drilled) all around. I will get back with pictures and result.

BTW: is it necessary to put the electric parking brake in service mode?

you don't need to do anything with parcing brake since you gonna upgrade front ones;)

[kingDL]

you don't need to do anything with parcing brake since you gonna upgrade front ones;)

Haha yes but I am going to replace the rear discs and pads too. [>_<]

[Flad.Solo.View]

Haha yes but I am going to replace the rear discs and pads too. [>_<]

oh, then yes)
its easy to do!
i made it few month ago https://www.drive2.ru/l/474148997389353104/ (use google/chrome translate if you are interested to read;))

[gabitza121]

Too big--- that requires at least 20" rims, no? I need to use winter tires on this car and they are insanely expensive in anything larger than 18".

19' rims you need minimum but you can go whit some 18'.
All rims r18 from a6 c7 it goes whit this setup of s6.
I have this brakes on my 3.0tdi and someone who I know whot same setup of s6 brakes it runns on 18th inches rims from a6 c7 4g.

[kingDL]

Should have posted this earlier but I have fixed the brakes on my car.

This was bolt on with no issues at all, I had steel brake lines custom made for these calipers to my previous car, and A4 B7. They fit nicely on the A6 C6 also. Could be that the OEM A6 C6 brake lines will work also, but I'm not sure.

I am using Zimmerman Sport rotors, I know the drilling they come with is mostly a gimmick but they are supposed to have better quality steel in them compared to the standard version. Pads are Redstuff.

The brakes are better than before and has a nice pedal feeling. But it should be noted that I had OEM pads before, so not sure how much the pads alone affect the performance. Considerable weight saving also!

Definatley an upgrade worth doing, the extra cost is just the calipers, which I paid $300 for.

A picture: https://imgur.com/a/RnLRQXy

[corrado-correr]

Hey kingDL can you say exactly what you ended up using to fit the Q5 calipers?

Is it just the calipers and brake lines form this kit: https://www.ecstuning.com/b-ecs-parts/front-big-brake-kit-stage-3-slotted-rotors-345x30/014366ecs03kt2/

[kingDL]

Hey kingDL can you say exactly what you ended up using to fit the Q5 calipers?

Is it just the calipers and brake lines form this kit: https://www.ecstuning.com/b-ecs-parts/front-big-brake-kit-stage-3-slotted-rotors-345x30/014366ecs03kt2/

Hello,

Nothing but the calipers themselves, it's a direct fit. Maybe the brake lines, but thats a big maybe, the OEM lines might work.

This is assuming that you have the 347x30 OEM brake setup, cars with other setups might have different hubs(?).

[Kem]

What size rotors does the ROW TDI SQ5 use? Here in the USA they are 380x36. How does that work with a 347x30 oem rotor?


Hello,

Nothing but the calipers themselves, it's a direct fit. Maybe the brake lines, but thats a big maybe, the OEM lines might work.

This is assuming that you have the 347x30 OEM brake setup, cars with other setups might have different hubs(?).

[B. Rock]

Isn't 347x30 the standard size for the C6's? If nothing else, those calipers look fantastic on the front of the car.

[kingDL]

What size rotors does the ROW TDI SQ5 use? Here in the USA they are 380x36. How does that work with a 347x30 oem rotor?

The Q5 brake mod does not refer to the SQ5 but the Q5 3.0 TFSI - the SQ5 has another brake setup, I think it has floating calipers with dual pistons. The Q5 3.0T has 345x30 rotors.

These calipers can be found on other audi models also - the ones I bought came of an A6 3.0 TDI -16.


Isn't 347x30 the standard size for the C6's? If nothing else, those calipers look fantastic on the front of the car.

There is several different front brake setup's for the C6, depends on what engine/trim level the car has.

I choosed to paint the calipers black - but if you like more attention they would propably look great in another color. It has a large space for text or something also.

[NJAUDI1]

Will the Q5 calipers work with the prestige 18inch wheel?

[NJAUDI1]

Hello,

Nothing but the calipers themselves, it's a direct fit. Maybe the brake lines, but thats a big maybe, the OEM lines might work.

This is assuming that you have the 347x30 OEM brake setup, cars with other setups might have different hubs(?).

If you have 3.0t you will need to replace brake lines with q5 ones. Other then that it is a direct bolt on.

[alexdell]

So I have the Macan calipers that I never ended up using on my old B8.5 S4. I'm thinking of installing it on my C6.5 3.0T avant (MY2009). I know the Macan is the same exact calipers as the Q5 (345x30mm 4-pot). Since the OEM calipers are 347x30mm (single pot), do I need to change the rotors as well? Also, based on what I read above, I need to replace the brake lines to the Q5 ones as well and everything else is a direct swap? Thanks for your help.

Alex

[NJAUDI1]

So I have the Macan calipers that I never ended up using on my old B8.5 S4. I'm thinking of installing it on my C6.5 3.0T avant (MY2009). I know the Macan is the same exact calipers as the Q5 (345x30mm 4-pot). Since the OEM calipers are 347x30mm (single pot), do I need to change the rotors as well? Also, based on what I read above, I need to replace the brake lines to the Q5 ones as well and everything else is a direct swap? Thanks for your help.

Alex
If the same as The q5 brembo 4 pots then only have to change the brake lines. The 347mm c6 rotors work fine. You can upgrade them if you want, but size wise they work fine with the q5 calipers.

[DOBERMAN@UA]

Hi,
I have a6c6 with 347mm front rotors, upgraded with q5 calipers, works perfectly. Now I do want to save some kilos on brake rotors, but two peace rotors are only 345mm, will it fit my set up?

[dluxxx]

Hi,
I have a6c6 with 347mm front rotors, upgraded with q5 calipers, works perfectly. Now I do want to save some kilos on brake rotors, but two peace rotors are only 345mm, will it fit my set up?

what year q5 calipers did you guys use??

so just to get things straight... its a direct bolt on (no modifications) except for brake lines

[DOBERMAN@UA]

8R0615108G and 8R0615107G. You need only brake lines. Easy to do, night and day difference

[kingDL]

Will the Q5 calipers work with the prestige 18inch wheel?

Sorry for late answer but I think they even would work with 17". I can confirm or deny this when I'm putting on my winter wheels, if we ever get any snow this winter. ^^

Are you sure about needing other brake lines? I havent measured but the A6 OEM one seemed to be about the same length as the steel ones I am using now.

Also,, is 2 -piece rotors really worth that crazy extra cost? :P

[DOBERMAN@UA]

For sure you will need new brake lines because q5 calipers have different connections. And yes q5 calipers will fit some 17 inch rims. I even saw 6 pot brembo calipers with 350mm brake disks fits 17 inch rims, but it depends on geometry of rims. For this size of brakes I would recommend at list 18 inch rims, during hot weather and hard braking you will need space for cooling down brake. In 17 inch rims there is no space at all. Even in winter calipers will clean rims and all dust would be on pads, it will cause excessive wear on pads
Two piece rotors abut 2,5 kg lighter then stock 347mm rotor it increases handling dramatically. The same effect as forged rims

[alexdell]

So my indy shop tried installing the Macan/Q5 Brembo calipers w/ a new set of ECS rotors (345x30) which were the ones for the B8 S4/Q5. Although the 345mm diameter works, the depth/height of the rotor hat seems to be 1/2” shorter than the stock 347mm rotor for the C6.5 A6. Basically the rotor was rubbing against the front of the inside caliper due to the narrower height of the rotor hat. I just ordered a set of the 347mm OEM size to see if it will work. I’m assuming the 2mm width difference should not be an issue clearing the 345mm calipers. Here’s a pic of the difference of the hat height as a reference.

https://uploads.tapatalk-cdn.com/20191220/563344c74e71349f010afa609a5b9fdb.jpg

[DOBERMAN@UA]

345 30 rotors doesn't fit q5 calliper on c6?

[alexdell]

345 30 rotors doesn't fit q5 calliper on c6?

It’s not the caliper fitment but the height of the rotor hat. So a stock C6 A6 rotor w/ the Q5/Macan caliper should work. As you can see from my pic above, the height of the c6 rotors are taller than the S4/Q5 rotors. It’s probably hard to tell as both rotors were flipped upside down to show the height difference. Here’s an animated gif since I can’t upload the video. https://uploads.tapatalk-cdn.com/20191226/9ef7d6873ca155ad28bcb1e4f7d05a52.gif

[jbain2]

It’s not the caliper fitment but the height of the rotor hat. So a stock C6 A6 rotor w/ the Q5/Macan caliper should work. As you can see from my pic above, the height of the c6 rotors are taller than the S4/Q5 rotors. It’s probably hard to tell as both rotors were flipped upside down to show the height difference. Here’s an animated gif since I can’t upload the video. https://uploads.tapatalk-cdn.com/20191226/9ef7d6873ca155ad28bcb1e4f7d05a52.gif

If it’s really that significant it may cause issues with the way the caliper works. The rotor should be centered between the pads. In theory if the offset is to skewed to one side you could get over-distention of the pistons.

Does anybody have a picture of how the OE rotors sit with the Q5 Brembos mounted?


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[alexdell]

Finally got mine installed using the stock size 347mm rotors w/ the Macan calipers & new SS brake lines from the S4/Q5. Only issue is that the brake dust shields doesn’t fit w/ the calipers so the shop took it out. I’ll probably get new ones later on. Here’s a pic as a reference.

https://uploads.tapatalk-cdn.com/20200205/c144ac45f2dbe0675b67e6f275a3fbcc.jpg

[fat]

Finally got mine installed using the stock size 347mm rotors w/ the Macan calipers & new SS brake lines from the S4/Q5. Only issue is that the brake dust shields doesn’t fit w/ the calipers so the shop took it out. I’ll probably get new ones later on. Here’s a pic as a reference.

https://uploads.tapatalk-cdn.com/20200205/c144ac45f2dbe0675b67e6f275a3fbcc.jpg


Alex .. 6 months in, how are liking the macan 4 pot calipers ?

If it’s as easy as swapping out lines, pads & calipers , this is a very practical performance upgrade. Thanks.


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[a1dan_87]

Alex .. 6 months in, how are liking the macan 4 pot calipers ?

If it’s as easy as swapping out lines, pads & calipers , this is a very practical performance upgrade. Thanks.


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I second the question! Looking at brake upgrades myself. I live in a rocky mountain state at the base of some fairly pretty mountains. I frequently do some canyon runs that can be pretty hard on the brakes, and I'm looking for something to handle the heat better.

Seems the consensus is that the Q5/Macan 4 pot calipers are a good option, and they fit with the OEM size/thickness rotors? However im assuming as it would be stock rotor size, you wouldn't be looking at better thermal management? Or would the calipers + slotted rotors make a difference?

[AudiRx]

Very interested in the results as well...

[ewmin3m]

This is a great thread; can't wait to get this done on my 3.0T wagon as well :D Thanks folks for all the infos.

[pele75]

An S6 OE brake swap is where its at. 385mm brakes. I did it to my 3.0t. https://uploads.tapatalk-cdn.com/20170812/11d42eaa75a6d591e235b07537b70cb7.jpg

NASAudi

What is the cost for this, does anyone know off the top of their head?


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[DC Dawg]

What is the cost for this, does anyone know off the top of their head?


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I have a set of calipers, hawk pads and lines. 600 shipped to your door. 500 for calipers only

PM me if you are interested. You will need to buy S6 discs.
https://i.ibb.co/hR7V0ym/IMG-2032-HEIC.jpg

[pele75]

An S6 OE brake swap is where its at. 385mm brakes. I did it to my 3.0t. https://uploads.tapatalk-cdn.com/20170812/11d42eaa75a6d591e235b07537b70cb7.jpg

NASAudi

Which rotors are these? Where could I buy them?


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[DC Dawg]

https://uploads.tapatalk-cdn.com/20210323/c9422d856abc5860d8de1412f23653f6.jpg
https://uploads.tapatalk-cdn.com/20210323/59da2e61cb9e9656231e4436526bcacf.jpg

Bolted right on. Just can’t used the stock dust shields without some cutting


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[Jeong Seongshin]

https://uploads.tapatalk-cdn.com/20210323/c9422d856abc5860d8de1412f23653f6.jpg
https://uploads.tapatalk-cdn.com/20210323/59da2e61cb9e9656231e4436526bcacf.jpg

Bolted right on. Just can’t used the stock dust shields without some cutting


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Hey. I saw the details you posted on Facebook. I'm also trying to choose between the Q5 or the Porsche Macan. Thanks. I'll ask you one question. Q5 Which of the two is lighter in the weight of the Brembo and Porsche Macan brakes?

[DC Dawg]

Hey. I saw the details you posted on Facebook. I'm also trying to choose between the Q5 or the Porsche Macan. Thanks. I'll ask you one question. Q5 Which of the two is lighter in the weight of the Brembo and Porsche Macan brakes?

Pretty sure the Macan Calipers are about 12 lbs and the Q5 are 9 lbs. I sacrificed 3 lbs for the cool factor :-)


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[DJSAV]

An S6 OE brake swap is where its at. 385mm brakes. I did it to my 3.0t. https://uploads.tapatalk-cdn.com/20170812/11d42eaa75a6d591e235b07537b70cb7.jpg

NASAudi

Hi NAS are these a direct bolt on for the A6 C6 or is there anything else needed? Thanks.

[DC Dawg]

Hi NAS are these a direct bolt on for the A6 C6 or is there anything else needed? Thanks.

From my research , you need S6 spindles as well for 09-11 C6. Previous years might be direct.


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[PPETKOV]

Can confirm that the brake calipers from RS6 C6 are plug and play for A6 C6 with 3.0TFSI ;)

[DC Dawg]

Can confirm that the brake calipers from RS6 C6 are plug and play for A6 C6 with 3.0TFSI ;)

Good luck getting them.


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[B. Rock]

Are you guys upgrading the master cylinder as well?

[DC Dawg]

Are you guys upgrading the master cylinder as well?

I did not

[DJSAV]

From my research , you need S6 spindles as well for 09-11 C6. Previous years might be direct.


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Hi I may now go for the Q5 Brembo set up will these bolt straight onto my 2007 A6 C6? What exactly will I need to make these work? Thanks.

[DC Dawg]

Hi I may now go for the Q5 Brembo set up will these bolt straight onto my 2007 A6 C6? What exactly will I need to make these work? Thanks.

I don’t know about an 07 , the calipers require the 347mm rotors so if those are what you have then it is a direct bolt on.

But I tough your fronts are Front rotors 320mm so the Q5 / Macan upgrade won’t fit. The S6 are a straight swap as far as I know though.


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[DC Dawg]

This will give your more info.

https://www.audiworld.com/how-tos/a/audi-a6-c6-brake-modifications-421920


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[DJSAV]

I don’t know about an 07 , the calipers require the 347mm rotors so if those are what you have then it is a direct bolt on.

But I tough your fronts are Front rotors 320mm so the Q5 / Macan upgrade won’t fit. The S6 are a straight swap as far as I know though.


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Could I not just get the 347mm rotors and then this set up will work? Also do you need the Q5 lines or will the A6 C6 lines work on these calipers? Thanks.

[DC Dawg]

Could I not just get the 347mm rotors and then this set up will work? Also do you need the Q5 lines or will the A6 C6 lines work on these calipers? Thanks.

You need the Q5 lines. I don’t know if you can mount the 347 or not, the issue is your spindles are different from the 3.0T so I don’t know if the calipers will bolt on correctly.


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[DJSAV]

345 30 rotors doesn't fit q5 calliper on c6?

Hi what exactly is needed to fit the Q5 brembo calipers to an A6 C6? I've just bought a set of calipers thank you.

[DJSAV]

You need the Q5 lines. I don’t know if you can mount the 347 or not, the issue is your spindles are different from the 3.0T so I don’t know if the calipers will bolt on correctly.


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Apparently the S6 calipers bolt straight onto my car so I'm just hoping these Q5 calipers will bolt straight on.
What model and year Q5 do I need the lines from? Thanks.

[DC Dawg]

Apparently the S6 calipers bolt straight onto my car so I'm just hoping these Q5 calipers will bolt straight on.
What model and year Q5 do I need the lines from? Thanks.

So you know , the S6 and Q5 calipers are totally different. I have a set of S6 ones. You need calipers from a 3.0t Q5. Not sure what years. ECS and fcp both have kits


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[DJSAV]

So you know , the S6 and Q5 calipers are totally different. I have a set of S6 ones. You need calipers from a 3.0t Q5. Not sure what years. ECS and fcp both have kits


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Awesome which is a better set up in your eyes the S6 or the Q5 brembo?

[DC Dawg]

Awesome which is a better set up in your eyes the S6 or the Q5 brembo?

I went with the Macan calipers for the cool factor but the braking power of the calipers are about the same.

These are the S6 ones I have for sale https://i.ibb.co/hR7V0ym/IMG-2032-HEIC.jpg - includes pads and lines & should bolt up to your current rotors.

[dluxxx]

do you guys have specifics for what year Q5 or Macan? Don't wanna buy the wrong year.

[DC Dawg]

do you guys have specifics for what year Q5 or Macan? Don't wanna buy the wrong year.

Pretty sure any B8 Q5 with the 3.0T. For the Macan calipers , I bought for a 2015 with 345mm rotors.

There is a full parts list in another thread I posted.

https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615123f
https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615124f


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[kilby]

Does anyone have the proper part number for the crossover line on the Q5 brembo calipers. i found a recently rebuilt set but they dont have the lines.
thanks
kilby

[ewmin3m]

Just a suggestion, you should ty to get a braided stainless steel set instead of OEM.


Does anyone have the proper part number for the crossover line on the Q5 brembo calipers. i found a recently rebuilt set but they dont have the lines.
thanks
kilby

[kilby]

Just a suggestion, you should ty to get a braided stainless steel set instead of OEM.

i did order braided steel lines to the caliper. i am looking for the part number for the crossover line. the hard line that carries fluid from one side of the caliper to the other.

[ewmin3m]

Ahh nice :D cool.

At the end maybe you can post a parts # list to have it on this thread as well :D

Can't wait to see how it looks

i did order braided steel lines to the caliper. i am looking for the part number for the crossover line. the hard line that carries fluid from one side of the caliper to the other.

[kilby]

looks like there is no replacement option offered by Audi. will call Porsche monday and see if they have an option for the macan. unfortunately this turned a cheaper rebuilt alternative into a still cheaper then new but more pain in the ass. oh well. i will post what i find from Porsche.

[a1dan_87]

That brake upgrade is looking closer and closer for me. I need to do the brake fluid (Had it boil, whoops), and I think I had a pad or caliper that's sticking, so now is as good a time as any. Audi lists the 8R0615107G and 8R0615108G as for the A7/S7/RS7, Q5 and SQ5. 345mm brembo calipers, and this thread confirmed they fit OEM 347MM sized rotors.

So consensus is, with new brake lines, that Q5/SQ5/Macan 4 pot brembo calipers will bolt straight up to our cars?

[ewmin3m]

That brake upgrade is looking closer and closer for me. I need to do the brake fluid (Had it boil, whoops), and I think I had a pad or caliper that's sticking, so now is as good a time as any. Audi lists the 8R0615107G and 8R0615108G as for the A7/S7/RS7, Q5 and SQ5. 345mm brembo calipers, and this thread confirmed they fit OEM 347MM sized rotors.

So consensus is, with new brake lines, that Q5/SQ5/Macan 4 pot brembo calipers will bolt straight up to our cars?

Seems like it.

I'm wondering if there is an adverse effect on braking system; if the calipers are designed for smaller rotors and you put a big one.

Though as I'm writing i see the difference between the two is 2mm so i'm guessing it shouldn't be too bad.

Where do people get the stainless steel lines ?

Also does anybody know if the 4 pot brembo calipers wider than stock A6 calipers? I'm only asking to see if i would have to swap wheels or not...

[fat]

Hey, been meaning to reply to this tread for a while but got really sick, surgery, relapse, dr’s… life is finally getting better. This is literally the first time I’ve had a chance to get on the zine in a long while. Got a lot of reading to do.

Anyway, there is an 18z option that bolts right up without mod’n the towers. It takes a bit of parts sourcing and milling of the mounts but the math works out and I have probably 7,000 miles on them now.
I’ll gather up the build pics and specs and post back shortly.
Not implying that this is any better than the Macon setup, just another option that works optimally with the OEM m/c

These are some pics I found on tablet.
248166
248167
248168
248169



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[grosen84]

What milling is required?

[fat]

So the mill requirement is 4 mm @ the inside of caliper mounts.
Few pics of the build I could find:

248711
248712
248713
248714
248715
248716
248717
248718
Fab table notes:
248720
248721

Will follow up with more specs shortly.



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[Jeong Seongshin]

The a6 c7 2016 2.0TDI Premium has the same stock calipers as the Q5 345mm caliper Brembo 4p.

[jbain2]

So the mill requirement is 4 mm @ the inside of caliper mounts.
Few pics of the build I could find:

248711
248712
248713
248714
248715
248716
248717
248718
Fab table notes:
248720
248721

Will follow up with more specs shortly.



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Nice! OE A6 rotors (or at least same specs)?


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[fat]

Few of the pieces to make this work successfully.
Calipers were off an ‘10 Q7, same can be sourced from the Cayenne
Mount tabs have been milled 4mm at inside (Hamiltons)
I media blasted and acid washed the calipers, then rebuilt the pistons
Mounting hardware was 10.9 that I got frozen a local supplier. (Wilders - if you’re in Raleigh)
Bolts were M14x45mm, w locknuts and washers.
Sleeves are a M14-M16 x 15mm, these are sleeve bearings also called oilless bushings.
Once bolted up, I trimmed the rotor shields a bit, rolled the edges and sanded smooth before some black spray.
Pads I used a stock Brembo 17z ,I had to repurpose my ABS connectors.
Brake lines are StopTech RS4 B7 they fit without any issues.
Speed bleeders
Rotors are A6 C6 347x30 Brembo’s
Flush and fluids with Pentosine LV
Bleed severe times, overall a noticeable improvement in stopping performance.
Will need to find a Ceramic 17z pad option as the current pads give off a heavy dusting.

These detail the parts to make this work:
250732
250734
250735


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[ewmin3m]

Looks great, nice write-up :D

Thanks for all the details

Few of the pieces to make this work successfully.
Calipers were off an ‘10 Q7, same can be sourced from the Cayenne
Mount tabs have been milled 4mm at inside (Hamiltons)
I media blasted and acid washed the calipers, then rebuilt the pistons
Mounting hardware was 10.9 that I got frozen a local supplier. (Wilders - if you’re in Raleigh)
Bolts were M14x45mm, w locknuts and washers.
Sleeves are a M14-M16 x 15mm, these are sleeve bearings also called oilless bushings.
Once bolted up, I trimmed the rotor shields a bit, rolled the edges and sanded smooth before some black spray.
Pads I used a stock Brembo 17z ,I had to repurpose my ABS connectors.
Brake lines are StopTech RS4 B7 they fit without any issues.
Speed bleeders
Rotors are A6 C6 347x30 Brembo’s
Flush and fluids with Pentosine LV
Bleed severe times, overall a noticeable improvement in stopping performance.
Will need to find a Ceramic 17z pad option as the current pads give off a heavy dusting.

These detail the parts to make this work:
250732
250734
250735


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[grana95]

So if I have a 2011 A6 C6.5 with stock 18 inch wheels, all I need is to get the Q5 calipers and brake lines? Will I need a different set of front pads?

[DC Dawg]

So if I have a 2011 A6 C6.5 with stock 18 inch wheels, all I need is to get the Q5 calipers and brake lines? Will I need a different set of front pads?

Yes pads match the calipers so you will need Q5 calipers or Macan Calipers with one will work. And your rotors are the stock 347mm C6 rotors.

My parts list for reference.

Rotors:
**use stock size 347mm rotors for C6

https://www.buybrakes.com/stoptech-127.33100r-sport-drilled-and-slotted-rotor
https://www.buybrakes.com/stoptech-127.33100l-sport-drilled-and-slotted-rotor

Pads:
**pads are for a Macan with 345mm rotors
https://www.buybrakes.com/stoptech-305.16630-street-select-brake-pads-with-hardware

Lines:
**Lines are for a B8 Audi Q5 3.0T
https://www.ecstuning.com/b-stoptech-parts/stoptech-stainless-steel-brake-lines-front/950.33016~stp/

Calipers
**2015 Porsche Macan with 4 Piston calipers and 345mm rotors
https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615123f
https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615124f


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[grana95]

Awesome I was able to source 2011 Q5 calipers for $85 per side. ill go and order lines and get that installed eventually

[DC Dawg]

Awesome I was able to source 2011 Q5 calipers for $85 per side. ill go and order lines and get that installed eventually

Good deal !


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[grana95]

Was there a non brembo option on the Q5? Not too sure if I got the correct ones now since there wasn’t photos up or a description. I assumed a 2011 Q5 was all I needed.

[ewmin3m]

I think so; i was also looking up q5 calipers and most of the cheap ones i found on ebay looked like they only had the one big piston.

Somebody would have to confirm exactly.

Was there a non brembo option on the Q5? Not too sure if I got the correct ones now since there wasn’t photos up or a description. I assumed a 2011 Q5 was all I needed.

[DC Dawg]

Was there a non brembo option on the Q5? Not too sure if I got the correct ones now since there wasn’t photos up or a description. I assumed a 2011 Q5 was all I needed.

For the 2.0T Q5 there is also 320mm rotor , those are not the Brembo calipers. 2011 I think was the 1st year of the 2.0T - you want 3.0T brakes I’m pretty sure.


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[grana95]

The ones i ordered from Ebay were 4 piston brembo q5 calipers but were off the 2.0T saying 320mm? I wasn't aware that there was a different setup for the 2.0 and 3.0.
Part numbers: 8R0-615-106-BN
:8R0-615-105-BN

[jbain2]

The ones i ordered from Ebay were 4 piston brembo q5 calipers but were off the 2.0T saying 320mm? I wasn't aware that there was a different setup for the 2.0 and 3.0.
Part numbers: 8R0-615-106-BN
:8R0-615-105-BN

There are different part numbers. You will most certainly need the calipers from a 3.0T Q5. Part numbers below.

8R0615108G
8R0615107G



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[a1dan_87]

Was there a non brembo option on the Q5? Not too sure if I got the correct ones now since there wasn’t photos up or a description. I assumed a 2011 Q5 was all I needed.It has to be from a 2016+ Q5 3.0T if I remember correctly

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[grana95]

So I finally got around to installing the calipers only to find out that they do not fit. They are the brembo calipers but the label did say from a 2.0T. What is the year make model that will have the correct crossover as well as the part number?

Do you guys think that if I remove the dust sheilds it will have clearance? or are these calipers useless at this point?

[grana95]

I was looking at OEM cost on calipers and am surprised to see such a huge difference in price. Any one have any ideas why this may be?

[jbain2]

There are different part numbers. You will most certainly need the calipers from a 3.0T Q5. Part numbers below.

8R0615108G
8R0615107G



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So I finally got around to installing the calipers only to find out that they do not fit. They are the brembo calipers but the label did say from a 2.0T. What is the year make model that will have the correct crossover as well as the part number?

See my post above. Those are the part numbers for the calipers from the Q5 with the 3.0T. The calipers from the 2.0T will not fit and even if they did, the rotors are also smaller than the stock rotors on the A6.


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[grana95]

See my post above. Those are the part numbers for the calipers from the Q5 with the 3.0T. The calipers from the 2.0T will not fit and even if they did, the rotors are also smaller than the stock rotors on the A6.


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Will the Porsche ones fit? Because they are a fraction of the cost

https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615124f

https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615123f

[DC Dawg]

Will the Porsche ones fit? Because they are a fraction of the cost

https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615124f

https://www.harperautoparts.com/oem-parts/porsche-caliper-95b615123f

Yes. I gave you the entire parts list about 10 posts above. My recommendation is you follow that.

https://uploads.tapatalk-cdn.com/20211113/de82ef3e2397781ddc07e18bc523cce9.jpg


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[grana95]

Yes. I gave you the entire parts list about 10 posts above. My recommendation is you follow that.

https://uploads.tapatalk-cdn.com/20211113/de82ef3e2397781ddc07e18bc523cce9.jpg


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Will I need to remove the dust shields?

[DC Dawg]

Will I need to remove the dust shields?

Yeah you can trim them to fit if you want but I didn’t bother


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[grana95]

Brake pads

What’s the difference between
95B-698-151-H
95B-698-151-G

The only difference I saw is that one says 17 and other says 18.

[Jeong Seongshin]

I have a question. Are there any points to note when installing the brake line?

[DC Dawg]

Brake pads

What’s the difference between
95B-698-151-H
95B-698-151-G

The only difference I saw is that one says 17 and other says 18.

Almost positive they are same, as long as they are macan pads for 350mm rotors you are good.

[Gangbango]

Hello everyone!
I am looking for brake calipers from Audi Q5/Porsche Macan 345mm, 4 pot Brembo, but they are extremely rare. So I found that calipers with the same OE numbers 8R0 615 108(107)G are mounted in Audi A7 2015-2018 Sportback. I may be able to get those from an Audi A7. I just have to be sure that 17" wheels 7,5J ET28 will fit! Everything will be mounted in Audi A6 C6 2010 3.0TDI with 347mm OE brakes. Is there anyone with similar set?

[ewmin3m]

I was under the impression that they wouldn't fit over 17" since I figure the caliper body is bigger... but i have no facts to back that up...

Hopefully somebody can drop some facts and clarify.

If they do fit then I can upgrade my brakes sooner; since they will work for my 17" winters :P

EDIT: kingDL ? i think on the first page said he will test with his 17" winters. dont know if he ever got to it.

Hello everyone!
I am looking for brake calipers from Audi Q5/Porsche Macan 345mm, 4 pot Brembo, but they are extremely rare. So I found that calipers with the same OE numbers 8R0 615 108(107)G are mounted in Audi A7 2015-2018 Sportback. I may be able to get those from an Audi A7. I just have to be sure that 17" wheels 7,5J ET28 will fit! Everything will be mounted in Audi A6 C6 2010 3.0TDI with 347mm OE brakes. Is there anyone with similar set?

[Gangbango]

I will give some info today, because I am going to measure all dimensions needed from the 4pot calipers and compare them with OE calipers of A6 C6 3.0TDI 2010.

[Gangbango]

Unfortunately, the calipers were taken from Audi A7, but the 320mm version. So if I want them, I have two options - downgrading from 347mm to 320mm rotors, or adding a custom steel bracket with new caliper mounting points. I am not sure about either. Still, I took some dimensions which have importance to the fitment of my 17" winter wheels. I measured 60mm +-2mm from outer face of brake disk to caliper's face and 110mm +-2mm from the caliper's mounting axis to it's outer edge. I think it can be useful to someone.

[DC Dawg]

Hello everyone!
I am looking for brake calipers from Audi Q5/Porsche Macan 345mm, 4 pot Brembo, but they are extremely rare. So I found that calipers with the same OE numbers 8R0 615 108(107)G are mounted in Audi A7 2015-2018 Sportback. I may be able to get those from an Audi A7. I just have to be sure that 17" wheels 7,5J ET28 will fit! Everything will be mounted in Audi A6 C6 2010 3.0TDI with 347mm OE brakes. Is there anyone with similar set?

They arent the least bit rare. The link to buy them new has been posted multiple times.

[Gangbango]

https://i.postimg.cc/Hr6MS2j4/DSC-2242.jpg (https://postimg.cc/Hr6MS2j4) https://i.postimg.cc/HrY54KWk/DSC-2243.jpg (https://postimg.cc/HrY54KWk) https://i.postimg.cc/qtg3W33f/DSC-2245.jpg (https://postimg.cc/qtg3W33f) https://i.postimg.cc/fJhYky6X/DSC-2246.jpg (https://postimg.cc/fJhYky6X)

Found the calipers I was looking for. From Q5 8R 3.0TDI Quattro. OEN 8R0615105(106)CA. I swapped the calipers just to see if everything is OK. The brake rotor is OEM 347mm for A6 C6. Those wheels are 17" from Audi A5 - 7,5J ET28. There is enough space between the caliper and the wheel.

[ewmin3m]

is that a 4 pot?
i would've thought the outside 2 pistons would be more distinct looking in the caliper housing.

[Gangbango]

Yes, it is a 4 pot Brembo caliper. The pistons are only visible on the back of the housing. The front is very simple and does not have the aggressive Brembo style. I am impressed by the caliper's weight. Much much lighter than the OE A6 C6 347mm calipers.

[sebvw]

Bumping this thread because there’s lots of good info (and many people asking the same question over again).

Question for you 3.0t guys: what are you doing in the rear for upgrades? I may have bought an avant that needs rear brakes and lines, so I’m thinking I might as well upgrade. The front Q5/Macan calipers are definitely also on my list.

Thanks to DC Dawg for posting the PNs!


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[PPETKOV]

Rear disks are 330mm the same size is for S6 which has 385mm for the front.
Therefore I would say that rears can stay. I personally put in front 390mm rotors (from AP Racing) and 6 pot brake calipers from RS6 C6. After ~ 15000 km no issues.
For the rears I've changed the lines with metal ones from HEL. Rotors and pads are OEM.

Anyway if you would like to upgrade the rear you have to get RS6 C6 (can't confirm if they will fit) rotor size is 356mm but the price including rotors is insane.
Even more you have to import the brake calipers from UK or Europe since RS6 C6 wasn't available in north America.

[sebvw]

Rear disks are 330mm the same size is for S6 which has 385mm for the front.
Therefore I would say that rears can stay. I personally put in front 390mm rotors (from AP Racing) and 6 pot brake calipers from RS6 C6. After ~ 15000 km no issues.
For the rears I've changed the lines with metal ones from HEL. Rotors and pads are OEM.

Anyway if you would like to upgrade the rear you have to get RS6 C6 (can't confirm if they will fit) rotor size is 356mm but the price including rotors is insane.
Even more you have to import the brake calipers from UK or Europe since RS6 C6 wasn't available in north America.

Do you (or anyone) know if the rears are the same as the C7s, also 330mm?


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[PPETKOV]

Quick answer: No they are different.

The overall height of the rotors is different:
C7 330x22mm overall height 36mm
C6 330x22mm overall height 49.4mm

[sebvw]

Quick answer: No they are different.

The overall height of the rotors is different:
C7 330x22mm overall height 36mm
C6 330x22mm overall height 49.4mm

[emoji106] - thanks for the info!


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[Jayme]

I have an A6 C6 2.0 tdi 170. I’ve come across C6 S6 brakes for cheap. I’ve read I’d need bigger spindles to accommodate, what is a spindle? Is it the wheel bearing hub or the arm which takes the hub and why do I need it?

Thank you,
Any information would be much appreciated.

Kind regards,
J.

[B18b1ex]

The S6 rears are not 330mm they are 356mm. I’m not sure where that information came from. I have them on my b8.5 S4

https://uploads.tapatalk-cdn.com/20220415/d5b843fddcc62d6a7ae59738f4ab1b3f.jpg


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[B18b1ex]

https://uploads.tapatalk-cdn.com/20220415/a8e31d7869ae5439bf316360dfef3f63.jpg


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[ewmin3m]

A bit late, but thanks for the info on the 17" sizing. I currently have the 17" 5 Spoke Y (4F0 601 025 CC 8Z8) 8J x 17H2 ET48.

So it looks like theres a finger between wheel and caliper.
According to this comparison i should be good with my 17" wheels since they are wider and have larger ET. which means I can start looking for a set of spare calipers :D

267899


Will have to see which ones I could find for cheaper. The q5 3.0 or the macan.

[a1dan_87]

On my car I refreshed my braking system with a set of new Zimmerman high carbon rotors and some redstuff pads. I've ran the car hard in some local canyons and passes with no heat issues so far, however, that was before going single pulley. Might pull the trigger on some macan/Q brembo 4 pots when I next need pads

[Gangbango]

https://i.postimg.cc/TKxL2XmJ/IMG-ecfd260889b09370a22c72683adc28ee-V.jpg (https://postimg.cc/TKxL2XmJ)
https://i.postimg.cc/87kpnkM9/IMG-57ce6895aa4728856e4c29fbe8f7806c-V.jpg (https://postimg.cc/87kpnkM9)
https://i.postimg.cc/XX0pkb1S/DSC-2261.jpg (https://postimg.cc/XX0pkb1S)

Hi there! I want to show you my progress. The color code is YR532M from Honda. I did three layers of 2K primer, 3 layers of base coat and 3 layers of 2K clear coat. No sanding after the primer.
I think they will look great on my blue A6 with 19" black Tomason TN1. I will update when install the calipers.

[kingDL]

Hello,

Late reply but:

1. I can confirm that at least some 17" wheels work. I have a setup Audi OEM 17" that works fine:
https://i.postimg.cc/C59kgb8q/IMG-0219.jpg

2. I actually have some problems with this setup, currently unclear why. I've had this setup on the car for some 3 years now, and suddenly one pad wore out completely and destroyed the disc. When I took it apart, the outer pad had like 50% left while the inner pad was worn down to the metal. Unfortunatley this happened on the side which has no sensor so the disc got busted too. [>_>] When I looked on the other side, the same thing has happened just not as bad; the inner pad is almost gone while the outer pad has lots of meat left. First suspicion as to why this has happened is that this combo caliper / disc might not be working 100%, maybe the disc isn't completely centered in the caliper. But if that is off, it can't be by much. But then I found out something odd: I have used ECS tuning's site as a reference for the OEM part numbers. But when I now checked up part numbers for new pads, I find that there seems to be a difference between pads for the US and EU market. I'm using EBC redstuff pads and ECS states that the part number for these is DP42070R (OEM=8E0698151G). But when checking EBC's own sites, and other european part shops, the part number is DP32168C (OEM=8R0615115G). But the part numbers for the calipers seem to be the same in both EU and US. [confused]
So maybe I used the "wrong" pads? There is a smallllll difference in size and shape between the 2:

The "US" pad, which I have been using:
https://i.postimg.cc/7LfKS6Q6/US-EBC.jpg

The "EU" pad, ordered these now:
https://i.postimg.cc/kMcWXCfh/EU-ebc.jpg

Here is a picture of the pads that came with calipers when I bought them, they are from a totaled A6 C7 TDI, 2016 year model I think.
https://i.postimg.cc/K8XT0Yzj/278990023-1430967344027536-3818414551866331962-n.jpg

EDIT: Also kindof intresting that the pads are stamped "BREMBO" and also that they are made by Galfer, a company usually mostly known for making performance brakes for MC's. Usually VAG oem parts has no markings on them who made them.

Maybe worth noting:
1. The "EU" pads cost just about half of the "US" pads in the same shops.
2. Both pads are being sold by the same shops, so doesnt seem likely they are some upgraded verson.

Also, these "Q5" calipers are also present on 4 and 6-cylinder versions of both the A6 and A7 from 2014 and up.

Any input on this is welcome!

Best Regards.

[Gangbango]

I bought cables which has two sensors for the inner and outer pad. The other thing I am thinking of is the surface where the pad meets the caliper (not the back of the pad against the caliper pistons, but the side beds). If the pad is not moving easy in the bed it can cause such problem. Something similar to the one-piston calipers when seized. Another friction point is the mounting pins which goes through the caliper and pads. When I think about it, big difference between this 4-pot caliper and any other 1-pot caliper is that, when 1-pot caliper seize it wears out unevenly the pads, but when this 4-pot caliper seize, it not only wears the pads unevenly, but also pushes the rotor out of its plane.......not good. Something else to think on is the pipe that connects the two parts of the caliper. The brake pressure hits the inner pistons directly and need to travel through that little pipe to the outer side. If there is some obstruction and uneven pressure on the both sides, it will cause the same problem. Now I am starting to worry about my kit and how it will work. Will see.

[kingDL]

I was thinking at first it was some caliper problem too, but there was no problem pushing the pistons and when I saw the other side I'm thinking its due to something else. Well see what happens...

BTW anybody know if there is some legal difference between the EU and the US when it comes to brake pads?

[Gangbango]

https://i.postimg.cc/8cyn9kD1/20220521-202850.jpg (https://postimages.org/)

[ewmin3m]

You wouldn't happen to have the specs/part number for your oem 17" ?


Hello,

Late reply but:

1. I can confirm that at least some 17" wheels work. I have a setup Audi OEM 17" that works fine:
https://i.postimg.cc/C59kgb8q/IMG-0219.jpg

[ewmin3m]

Bringing this back from the dead. How has pedal feel/ push length been for those that did the 4pot q5 and the stainless lines ?

I recently got a mk6 gti that has real nice brake feel and the brakes on the a6 feel so long and kinda meh. At the end of the day the gti is a sporty car and the a6 has nothing sporty about it.

[Tai-Lun]

I did the 18z setup and have been driving on it for a few weeks now, the pedal feel is like OEM but a lot more bite with the added pistons. Not having to switch rotors was a bonus as well, the only caveat is the brake pad sensor is constantly on as the sensor doesn't transfer over to the new pads, I'm using 17z pads which line up on the calliper/rotor.

Has anyone found a workaround for the brake pad sensors?

https://i.imgur.com/3W68E2p.jpg

[jbain2]

I did the 18z setup and have been driving on it for a few weeks now, the pedal feel is like OEM but a lot more bite with the added pistons. Not having to switch rotors was a bonus as well, the only caveat is the brake pad sensor is constantly on as the sensor doesn't transfer over to the new pads, I'm using 17z pads which line up on the calliper/rotor.

Has anyone found a workaround for the brake pad sensors?

https://i.imgur.com/3W68E2p.jpg

You can either purchase them through ECS or make a set from old brake pads.


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[B18b1ex]

The bracket I made for the b8.5 s4/5 which utilizes the b9 rs5 or 4M Q7/8 6piston oem calipers should work also on the A6,A7 and Q5 as well. Allows 375mm x 36 rotor and better wheel clearance.

Look in the b8 s4 forum for oem plus brake upgrade thread.

https://uploads.tapatalk-cdn.com/20241209/2753b592919b50be00b3a691d9dbc3fa.jpg
https://uploads.tapatalk-cdn.com/20241209/871fe57f169426dfd7d4ff0f9d378a4b.jpg


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[ewmin3m]

This is good info; now that I have a tune; this is closer on my radar :D

[persondude32]

FWIW the C6 S6 rear brakes are 330x22mm, but the C7 S6 rears are 356mm diameter, so that's probably what you have on your S4, B18b1ex. The C6 S6 rear rotors have a slightly different offset than the C6 A6 rear 330x22mm rotors though, so they're not interchangeable. You can also tell the C6 S6 rear brakes are different than what you have because the C6 calipers don't have a fancy big anti-rattle spring with the Audi or S6 logo, only the front calipers on C6 S6 get the fancy rattle spring.

[B18b1ex]

FWIW the C6 S6 rear brakes are 330x22mm, but the C7 S6 rears are 356mm diameter, so that's probably what you have on your S4, B18b1ex. The C6 S6 rear rotors have a slightly different offset than the C6 A6 rear 330x22mm rotors though, so they're not interchangeable. You can also tell the C6 S6 rear brakes are different than what you have because the C6 calipers don't have a fancy big anti-rattle spring with the Audi or S6 logo, only the front calipers on C6 S6 get the fancy rattle spring.

I did a lot of research before, getting in this stuff. I did use C7 s6 rears, but then in looking more into it I found that the rear calipers on most of the cars are the same size with the carriers being the difference. I mixed the Porsche Macan caliper for the plate with the c7 s6 carriers and sold the other parts to an A4 guy.


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[persondude32]

I did a lot of research before, getting in this stuff. I did use C7 s6 rears, but then in looking more into it I found that the rear calipers on most of the cars are the same size with the carriers being the difference. I mixed the Porsche Macan caliper for the plate with the c7 s6 carriers and sold the other parts to an A4 guy.


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Yeah the calipers themselves are the same between C6 and C7 S6 rear, but the rotor and bracket are different, and the rear rotor on C6 S6 is a 330mm while the C7 S6 is a 356mm. And this thread is in the C6 board, so that's why it's weird to say an S6 came with 356mm in here when the C6 S6 didn't come with that.

[B18b1ex]

Yeah the calipers themselves are the same between C6 and C7 S6 rear, but the rotor and bracket are different, and the rear rotor on C6 S6 is a 330mm while the C7 S6 is a 356mm. And this thread is in the C6 board, so that's why it's weird to say an S6 came with 356mm in here when the C6 S6 didn't come with that.

Thanks for clearing that up. My mistake sorry.


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