What’s this engine noise!!! B8.5 S4

[Mestizo83]

The engine on my b8.5 S4 has been making this sound on cold starts. Does anyone know what this could be? Should I be concerned? From what I’ve read it could be a timing chain tensioner. Any feedback would be helpful. The car hasn’t shown any loss of power.

https://www.dropbox.com/s/2hrs6b2urn...%20PM.mov?dl=0

[endy1]

https://www.audizine.com/forum/showt...rt-V6-3-0-TFSI


Mine has been like this for like 1.5 yrs now...

[joserod92]

The engine on my b8.5 S4 has been making this sound on cold starts. Does anyone know what this could be? Should I be concerned? From what I’ve read it could be a timing chain tensioner. Any feedback would be helpful. The car hasn’t shown any loss of power.

https://www.dropbox.com/s/2hrs6b2urn...%20PM.mov?dl=0

I have had this for 3 years and no problems so far, so basically Audi says its fine as longs as it doesn't exceed 3 seconds. Liqui moly ceratec in my case reduced the noise significantly. I also perform 5k mile oil changes. This might seem a little steep but im running 034 stage 2+ and just to be safe.

Technical Service Bulletin
15 Engine rattling noises at cold start - V6 3.0 TFSI
15 15 26 2039995/1 March 3, 2015.
Model(s) Year VIN Range Vehicle-Specific Equipment
All 2011 - 2014 All V6 3.0 TFSI

Condition
Rattling noises are heard from the timing chain drive for about 1-3 seconds after the first engine start of theday.

Technical Background
The noises are caused by one of the upper chain tensioners. The noises do not lead to damage.

Production Solution
Improved chain tensioner.

Service
1. Verify condition by observing engine sound during cold start.
2. If the rattling noise comes from the area of the timing chains (back of the engine) for 1-3 seconds after the first start of the day, replace both upper chain tensioners of bank 1 and bank 2 with the optimized chain tensioners.

Technical Service Bulletin Warranty
Claim Type: Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin is informational only.

Service Number: 1536

Damage Code: 0010

Labor Operations: Chain tensioner remove+reinstall (See Elsa for SRT specific to model) 1536 20XX XX TU

Diagnostic Time: GFF No allowance 0 TU

Road test prior to service procedure 0121 0002 10 TU

Road test after service procedure 0121 0004 10 TU

Technical diagnosis at dealer’s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)

Claim Comment: As per TSB #2039995/1
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual. Claims are subject to review or audit by Audi Warranty.

Required Parts and Tools

Part Number Part Description Quantity
06E109217AH Chain tensioner bank 2 1
06E109218AJ Chain tensioner bank 1 1

Additional Information
All parts and service references provided in this TSB (2039995) are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.

[fastboatster]

when it gets noisy for more than 3 seconds it might be too late. depends on how long you want to keep the car for, though.

[Waffles_s4]

How many seconds the noise lasts is only one aspect to look for.

More importantly though, is to go through your oil filter, and look for small metal particles which would indicate chain or tensioner material or even plastic guide material is floating around the engine. Also if you hear knocking or slapping in the back of the engine, it's a sign that the guides or tensioners are in a bad shape.

Take your oil filter cover, inspect your oil filter under good lighting conditions, and go from there.

[Can_I_Haz?]

The engine on my b8.5 S4 has been making this sound on cold starts. Does anyone know what this could be? Should I be concerned? From what I’ve read it could be a timing chain tensioner. Any feedback would be helpful. The car hasn’t shown any loss of power.

https://www.dropbox.com/s/2hrs6b2urn...%20PM.mov?dl=0

Injector noise Direct injection is louder than port and probably quiets down a little bit when its warm. My car sounds the same and its a 2011 S4. Nothing blew up yet.

[fastboatster]

Def not the injection noise. When it it just starts, there’s a very clear whiny sound which might be non-tensioned chain.
P.S. whoops, rewatched, no whine. But rattle is def not the injectors.

[serd888]

Apologies for bump/OP jack - I bought a b8.5 2015 s4 last year, has 76k now, it’s ran great and has full history from Audi, all service intervals completed.

Decided to upgrade to IE stage 1, put fresh tires, rotors/pads and DSG transmission service. Install of intake and SW went fine. Test drive, fine but on the way home I got a low vibration and EPC warning. Got back, ran the OBE, misfire on 3 and 5. Changed out plugs and coils with R8 NGK’s. Turn the engine one and the rattle got worse. Haven’t drove it at all and tried flashing back to stock.

[B7TitaniumA4]

I got the rattle around 70k miles, let it go for a little bit and finally pulled the engine to do a refresh at about 94k, I found bits of plastic in my oil pickup and all a lot of my guides were broken upon opening the case and then they all disintegrated as I pulled the chains. I hate that Audi says it’s ok, and blames just the tensioners, but those guides are NOT lifetime!


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[Nillious]

Lifetime to Audi just means no service interval. Doesn’t mean it shouldn’t be serviced.

[Mfryman1]

Sounds like the top tensioners to me. This is the exact noise that I had before doing a engine out major service. I also had a water pump leak issue and what I thought was a supercharger noise. I also had minor oil leaks on the valve covers and maybe the oil filter housing. I replaced all the timing components and this noise is history.

[JihNahn]

Sounds like the top tensioners to me. This is the exact noise that I had before doing a engine out major service. I also had a water pump leak issue and what I thought was a supercharger noise. I also had minor oil leaks on the valve covers and maybe the oil filter housing. I replaced all the timing components and this noise is history.

How much did that run you? 3.0t has like 4 chains, 9 gears and however many tensioners & guides so I imagine a decent chunk of change


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[Mfryman1]

Here's the kit from FCP Euro. look at the list it includes everything. ( I do not work for them)

https://www.fcpeuro.com/products/aud...is-06e109465kt

Here's a kit from ECS:


https://www.ecstuning.com/b-assemble...hoCc1wQAvD_BwE

I like the tool kit for holding and locking the cams and crank. You could take the part numbers and run the separately and get prices individually for them. FCP does have a lifetime warrantee on their parts.

Here's a pic of what was under the bell housing after separating the engine and transmission, had a oil leak from the front diff seal for the drive shaft going through the bottom of the bell housing. I thought it was the rear main oil seal before I pulled the engine. It is amazing what you can discover when you get a close look.

Of course I did the rear main seal and the front main seal while I had it out. 50 bucks and easy replacement engine out. Here's what it looked like before I re-installed the engine.

20210625_195846.jpg

20210727_194852.jpg

[Fresh.S4]

i wish i had a garage

[JRYtheS4]

i wish i had a garage

You and me both.

I'll do mine in the driveway and let you know how fun that is :D

That scwaben tool set suggestion in the ecs kit is much appreciated because I wasn't finding a decent set besides the $600 audi one.



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[fastboatster]

You and me both.

I'll do mine in the driveway and let you know how fun that is :D

That scwaben tool set suggestion in the ecs kit is much appreciated because I wasn't finding a decent set besides the $600 audi one.



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ecs tuning link is a b7 s4 toolkit, not b8/b8.5. fcp euro kit has wrong camshaft adjuster bolts - it has 4 short bolts for the exhaust sprockets instead of 2 short bolts for the exhaust sprockets plus 2 longer bolts for the camshaft adjusters. For some odd reason, it doesn't have exhaust manifold to cat converter gaskets and locknuts, secondary air valve gaskets are also missing. upper timing chain cover bolts would also be good to replace since the manual deems them to be non-reusable (it's probably bs, though, but you don't want to find out when these effing covers start to leak). Engine oil cooler gasket is absolutely unnecessary, you don't need to remove the cooler to lock the crank at all if the engine is out. Don't really need to remove it either with the engine in the car if you lower the steering rack, but will have to use a smaller ratchet.

[JRYtheS4]

ecs tuning link is a b7 s4 toolkit, not b8/b8.5. fcp euro kit has wrong camshaft adjuster bolts - it has 4 short bolts for the exhaust sprockets instead of 2 short bolts for the exhaust sprockets plus 2 longer bolts for the camshaft adjusters. For some odd reason, it doesn't have exhaust manifold to cat converter gaskets and locknuts, secondary air valve gaskets are also missing. upper timing chain cover bolts would also be good to replace since the manual deems them to be non-reusable (it's probably bs, though, but you don't want to find out when these effing covers start to leak). Engine oil cooler gasket is absolutely unnecessary, you don't need to remove the cooler to lock the crank at all if the engine is out. Don't really need to remove it either with the engine in the car if you lower the steering rack, but will have to use a smaller ratchet.

I went back and screenshotted your tool suggestions because I had forgotten about that post. I'm glad all this info is all fresh in your mind right now so you can save me the trouble!

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[bakedziti]

FWIW; I used that FCP Euro kit for my timing replacement and everything sounds great with the engine running and starting much smoother and quieter. I also had an order from ECS for a clutch install kit after getting lazy searching the PN#s on FCP and I think that included the cat hardware and gaskets.

[fastboatster]

FWIW; I used that FCP Euro kit for my timing replacement and everything sounds great with the engine running and starting much smoother and quieter. I also had an order from ECS for a clutch install kit after getting lazy searching the PN#s on FCP and I think that included the cat hardware and gaskets.

did you install it yourself or had a shop do it for you? in case of the shop, there's a chance that they ordered some missing parts or just reused the old ones.

[bakedziti]

did you install it yourself or had a shop do it for you? in case of the shop, there's a chance that they ordered some missing parts or just reused the old ones.

My trusted indy did the work with me supplying the parts and the explicate direction that I wanted the new hardware that I purchased used unless there was an issue, and in that case to call me. I have a couple of other parts on my invoice that I didn't procure myself, so I doubt that they purchased anything that's not on the invoice, and I doubt that they would have reused these bolts with the amount of money spent already along with the amount of time the car was with them and the whole discussion leading up to the work about it being completed properly all at once. Granted, I wasn't standing over anyone's shoulders, so I can't say for sure unless I call my tech at the shop.

Curious why ECS has a year split designation on their kits. I originally ordered a kit from ECS but cancelled it after realizing the FCP kit was more complete. I wonder if my B8.5 makes a difference or what the difference is between the kits?

[fastboatster]

My trusted indy did the work with me supplying the parts and the explicate direction that I wanted the new hardware that I purchased used unless there was an issue, and in that case to call me. I have a couple of other parts on my invoice that I didn't procure myself, so I doubt that they purchased anything that's not on the invoice, and I doubt that they would have reused these bolts with the amount of money spent already along with the amount of time the car was with them and the whole discussion leading up to the work about it being completed properly all at once. Granted, I wasn't standing over anyone's shoulders, so I can't say for sure unless I call my tech at the shop.

Curious why ECS has a year split designation on their kits. I originally ordered a kit from ECS but cancelled it after realizing the FCP kit was more complete. I wonder if my B8.5 makes a difference or what the difference is between the kits?

entirely possible that some missing gaskets might have been in the clutch kit and/or fcp euro has wrong pics for some of the items or just doesn't display them. having done the upper tensioners myself, looking at fcp kit pics, some items are missing for sure. Upper tensioner p/ns are different between the b8 and b8.5s, and the updated b8 tensioners don't have the same p/ns as b8.5s. maybe that's the reason for the split

[JRYtheS4]

entirely possible that some missing gaskets might have been in the clutch kit and/or fcp euro has wrong pics for some of the items or just doesn't display them. having done the upper tensioners myself, looking at fcp kit pics, some items are missing for sure. Upper tensioner p/ns are different between the b8 and b8.5s, and the updated b8 tensioners don't have the same p/ns as b8.5s. maybe that's the reason for the split

Oh so I can't use the $149 each tensioners and I have to use the $300 ones because I'm a B8? Awesome.

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[Mfryman1]

fastboatster you are correct the links are for crap Guess I did not read thoroughly, my apologies all!

Here is the tool kit I used for locking the cams down. It worked OK just do not over torque the cam locking bolts on the bridges.


https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I did not buy the entire kit from FCP because at the time they did not have everything in stock I needed.

Agree oil cooler gasket not needed if you do not loosen it up for any reason. I did get one (have an extra if you want it). I did remove the cooler attempting to get to the crank plug engine in but did not know the "trick" of dropping the steering rack to access, so I learned something today!

[serd888]

Lifetime to Audi just means no service interval. Doesn’t mean it shouldn’t be serviced.

Yup 100% I just found the problem to my knock… spun bearings = new engine. Picked up a new one from Houston for 6k with 30k less miles on than my original. Gets dropped in on Tuesday.

[svt]

I’ve got this noise and I have a ‘16 with 20k miles. The noise was around when I bought it at 13k.