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Thumping and Groaning

Posted: Sat Oct 22, 2011 2:59 pm
by MattyB1
I asked this on S2Forum, but I'll ask here too...

Recently I've been having a bit of a 'thump' when engaging and disengaging the clutch, especially in the lower gears. It almost as if there is some movement in the drivetrain somewhere. It makes navigating around town difficult, as I have to be veeerrryyy slow and precise with the clutch action to be smooth. As well as this, I've been having groaning/graunching noise which seems to come from the rear when maneuvering on a tight lock, usually at low speed.

S2forum guys said it was typical signs of a worn rear diff mount, but MidlandVW have said the mount is fine, and there's no movement around there at all. They said that noises like that were 'normal' for a car of this age and not to worry...but its more the gearchanges/clutch that annoys me, mainly because you have to make such a concious effort when changing gear to avoid kangerooing or thumping.

Suggestions? Is it really a matter or TADTS, or a is there something amiss?

Re: Thumping and Groaning

Posted: Sat Oct 22, 2011 11:27 pm
by Lloyd
Not sure about the clutch sound, but your groaning from the rear is from your rear diff.
My car currently makes this sound, exactly as you describe

You can have the backlash adjusted which will stop the car from making these noises.
AFAIK the diff needs to be removed to do this.

Re: Thumping and Groaning

Posted: Tue Oct 25, 2011 10:28 pm
by VaudiGR
How about checking the middle mount of the drive axle? The one that Audi doesn't have a part for and you can only get the BMW part or the original from GT500 member at s2 forum.

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Re: Thumping and Groaning

Posted: Tue Oct 25, 2011 11:25 pm
by MattyB1
Cheers all - will get these checked when I get to MRC in a few weeks time.

Re: Thumping and Groaning

Posted: Wed Oct 26, 2011 9:38 pm
by Shoppinit
The gear change issue sound like a worn / broken engine mount.

Re: Thumping and Groaning

Posted: Wed Oct 26, 2011 10:58 pm
by Rick_RS4
rear diff mount or centre prop shaft mount maybe

Re: Thumping and Groaning

Posted: Sat Nov 19, 2011 5:11 pm
by teknobod
Vasaudigreece wrote:How about checking the middle mount of the drive axle? The one that Audi doesn't have a part for and you can only get the BMW part or the original from GT500 member at s2 forum.

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Rob has already replaced it recently Vas.

Re: Thumping and Groaning

Posted: Sun Nov 20, 2011 2:32 pm
by VaudiGR
Ah I see. That's not it then

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