A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

01 A6 2.7t MT clunk while braking

Thread Tools
 
Search this Thread
 
Old 09-28-2010, 02:11 PM
  #1  
AudiWorld Member
Thread Starter
 
Daremo_06's Avatar
 
Join Date: Feb 2010
Location: Rhode Island
Posts: 173
Received 1 Like on 1 Post
Default 01 A6 2.7t MT clunk while braking

So I just picked up the car from the shop after having them put in the new motor and put everything else back together.

Noticing a clunk while braking. Not pulsing like a warped rotor, but a clunk. This mean something is loose? Or is it a bad suspension piece somewhere?

Keep in mind, this car hasnt run since mid july, I bought it with a broken timing belt, and it just finished having a new motor + clutch and a bunch of other stuff put on it. So alot of things have been taken apart and put back together.

Thoughts?
Old 09-28-2010, 05:44 PM
  #2  
AudiWorld Super User
 
Airbag's Avatar
 
Join Date: Oct 2006
Location: In my Garage
Posts: 2,339
Received 75 Likes on 74 Posts
Default

did they forget to tighten one of the mounts ?

i guess you have never driven it so don't know if it was there before ...

i can't imagine what you have into this car now
Old 09-28-2010, 06:28 PM
  #3  
AudiWorld Member
Thread Starter
 
Daremo_06's Avatar
 
Join Date: Feb 2010
Location: Rhode Island
Posts: 173
Received 1 Like on 1 Post
Default

it would have been much less if I had had a chance to prep the new motor myself instead of the shop having to do it. Last time I let the gf dictate how I am fixing a car.... lol

total shop bill was 5600 most of that labor. I spent about 500 on parts myself and 1900 on the motor, 1800 for the car originally. so yeah.. alot.
and its more painful because i know I could have done all of the work myself.

But on the flip side, I have a car with a low milage motor and turbos (under 80k) new clutch (rs4) rebuilt starter and alternator, aux water pump and anything else that normally fails. Oh and motor came with new timing belt + seals.

So I over extended on the budget, but I am very happy with the car.
Old 09-28-2010, 08:06 PM
  #4  
Former Vendor
 
MikekiM@PureMS's Avatar
 
Join Date: Dec 2000
Location: San Diego, CA
Posts: 15,545
Likes: 0
Received 0 Likes on 0 Posts
Default

I'd double check and make sure the subframe is tightened properly.
Old 09-28-2010, 08:34 PM
  #5  
Audiworld Junior Member
 
casa477's Avatar
 
Join Date: Dec 2006
Posts: 75
Likes: 0
Received 0 Likes on 0 Posts
Default Got the same thing on my 4.2 turned out to be...

The front rear lower control arm. Check and see if one of the front control arms needs to be replaced.
Old 09-29-2010, 04:10 AM
  #6  
AudiWorld Member
Thread Starter
 
Daremo_06's Avatar
 
Join Date: Feb 2010
Location: Rhode Island
Posts: 173
Received 1 Like on 1 Post
Default

I didn't describe the sound correctly. Its a continous clunking as if you had a flatspot on a tire, but its only when braking.
Old 09-29-2010, 05:05 AM
  #7  
AudiWorld Super User
 
SloopJohnB@mac.com's Avatar
 
Join Date: Oct 2002
Location: Olney, MD
Posts: 7,858
Received 101 Likes on 77 Posts
Default

Check wheels for loose lug bolts?
Perhaps the axles weren't tightened either...the big jesus bolt in the center of the wheel or the six triple square bolts holding the axle to the output flange?

Not so much the brake mounting hardware if they didn't touch the brakes, but you never know.
Old 09-29-2010, 12:15 PM
  #8  
Audiworld Basic Sponsor
 
Pete@ECSTuning's Avatar
 
Join Date: Oct 2006
Posts: 3,623
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Daremo_06
I didn't describe the sound correctly. Its a continous clunking as if you had a flatspot on a tire, but its only when braking.

Hmmm...Can you feel it in the steering wheel?
__________________
:: www.ECStuning.com :: Now with EXTENDED Customer Service hours!! | FIND US ON FACEBOOK!!
Phone: 1.800.924.5172 - Sales: 8:30am to MIDNIGHT EST | Customer Service 8:30am - 8pm EST
Questions? PM us for a quick response! | Email: Pete@ecstuning.com
Old 09-29-2010, 02:18 PM
  #9  
AudiWorld Member
Thread Starter
 
Daremo_06's Avatar
 
Join Date: Feb 2010
Location: Rhode Island
Posts: 173
Received 1 Like on 1 Post
Default

Originally Posted by Pete@ECSTuning
Hmmm...Can you feel it in the steering wheel?
No not noticeably.

It sounds/feels like a wheel bearing, but only when braking, so it cant be that, can it?

I am relying on you guys here because this is my first C5 and I know the front suspension is radically different from the C4 which was my last car.
Old 09-30-2010, 04:57 PM
  #10  
AudiWorld Super User
 
Just Me's Avatar
 
Join Date: Mar 2003
Posts: 6,001
Likes: 0
Received 0 Likes on 0 Posts
Default

not on accel, right? ( thinking CVs)

Have you looked at the brakes for something attached to a rotor that could catch a pice of a pad? Like a rock?

If something were loose it could cause a CV to catch

G


Quick Reply: 01 A6 2.7t MT clunk while braking



All times are GMT -8. The time now is 11:39 AM.