Audi A8 This full sized Audi A8 sedan offers interior luxury and spaciousness comparable to any car in the full sized luxury sedan class

Transmission Clunks

  #1  
Old 04-07-2006, 09:34 AM
1st Gear
Thread Starter
Join Date: Feb 2005
Posts: 9
Default Transmission Clunks

I have a 1996 Audi A8 Quattro (ABZ) and recently i hear a distinct
*Clunk* sound accompanied with a jerk when engaging the reverse gear.
This happens when the engine is cold or warm.

I only experience this in the when switching to Reverse all the others including park, drive or the other 3,2,1 are all fine.

i just had the transmission rebuilt along with the valve body (3 months back and used original ATF fluid)but the problem hasn't gone away.

There are no other sounds while driving except I also experience a jerk while the transmission changes from 1-2-3-4 and back (4speed ZF
transmission)

The drive is very smooth after it touches 4th gear and the pickup and acceleration seems fine.

i have shortlisted possible causes from what i've read

* U-joint (never checked or replaced)
* CV-Joint (never replaced)
* F125 switch (multifunction) (giving occasional error with scan)
* Torque converter (not checked)
* Engine mount (currently leaking)
* Transmission mount (not checked)
* Valve Body (jammed piston)

Can it be any of the above or something completly different
_________________
Boney F Varghese
 
  #2  
Old 04-08-2006, 11:14 AM
1st Gear
Join Date: May 2005
Location: B-more, MD
Posts: 91
Default RE: Transmission Clunks

I think the 'clunk' you are feeling is the torque converter being wound to tight. I am no mechanic, but I've seen this in other vehicles I've owned. Since you just had the transmission rebuilt, why not go back to the place that rebuilt and demand they fix it? If you did it yourself, then I would say just live with it. As the head mechanic at AudiConnection told me, the older A8's are just put together that way.. they ALL have clunky transmissions. There's nothing wrong with them until they start having performance problems.
 
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