[s-cars] exhaust started to touch body

[Wylie Bean]

Konstantine,
I had an issue on our A4 Avant that sounds a little like yours. When pulling away from a stop, especially when turning, there was a rubbing sound (with vibration) that was due to a failing drivshaft center support bearing.  The rubber was weakening enough to allow enough movement in the driveshaft that it was rubbing, but not torn.
 
Wylie Bean
TheRingmeister at triad.rr.com
90 cq
91 90q20v
92 UrS4
08 Q7 3.6
via BlackBerry®

-----Original Message-----
From: Konstantine Bogach <kbogach at comcast.net>
Sender: s-car-list-bounces at audifans.com
Date: Mon, 01 Nov 2010 21:40:41 
To: chris chambers<fastscirocco_2000 at yahoo.com>
Cc: s-car-list at audifans.com<s-car-list at audifans.com>
Subject: Re: [s-cars] exhaust started to touch body

  Chris,  I need to hear it from outside of the car (still did not have 
that chance, always no another person at right time),  but I doubt it is 
a CV.  I probably did not describe the sound accurately,  but it sounds 
more like exhaust touching body,  or bad big rubber bushing somewhere.

Thanks.
Konstantine

On 10/31/2010 11:52 PM, chris chambers wrote:
> Konstantine,
> Sounds like it could be the front CV joint, the grease get stiff from 
> the heat of the exhaust.
> The CV joint can be regreased.
> Or it could be the rubber carrier of the center carrier bearing is 
> weak/broken allowing it to flex.
> HTH
> Chris
>
> ------------------------------------------------------------------------
> *From:* Konstantine Bogach <kbogach at comcast.net>
> *To:* "s-car-list at audifans.com" <s-car-list at audifans.com>
> *Sent:* Sun, October 31, 2010 11:33:14 PM
> *Subject:* [s-cars] exhaust started to touch body
>
>   Hi All,
> gradually groaning sound when I start moving became too noticeable and I
> started poking around.  I found that exhaust pipe is very close to
> protective alumina shield (pipe is skewed from center to the side) and
> it is too close to ... don't know how it is called ... but it is bolted
> to the body and servers as protection from exhaust pipe falling down.
> Does it say that engine mounts or tranny mounts sagged?
> Also, the down pipe  caught a starter lying on a road and it got a very
> noticeable dent.  Could it cause a damage to exhaust manifold?  But the
> groaning/rambling sound happens only when I start moving.  I think it
> can not be a crack in the manifold.  Am I right?
>
> Thank you.
> Konstantine
> UrS4 '93
> 200TQA '89
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