Thud when releasing clutch pedal

[Mark A]

Hi all, I have searched for this, but no joy - so apologies if this has been covered before.

I have a 2003 A4 1.9TDi with 80K on the clock. When I am in traffic & working the clutch pedal quite a bit, I notice a thud when I let the clutch pedal out (sounds as if it's coming from the back of the car). Is this a fairly common thing, and is it easy to rectify.

Cheers,
Mark

[RickT]

is the car front wheel drive or Quatrro...??

i guess Q... rear diff ..

RicKT

[Mark A]

It's a bog standard front WD car.

Mark

[RickT]

urm.....

Does it only do this when you release the clutch after the hand brake has been apllied??

RicKT

[Mark A]

No, It seems worst when I am sitting in traffic with the pedal down for more than 5 - 10 seconds.

[RickT]

sounds like the release bearing then..

not sure why it would sound to be coming from thr rear.. unless the knock vibration travels down the car..


RicKT

[tyberwan]

I have the same problem with my A4 TDI 2001. I hear it specially when you accelerate and brake at slow speed in traffic. The previous owner told me this is the diesel in your tank which may be half full. I had it for more than a year.

[RickT]

I would says it maybe a sticky brake pad? piston?

OR it could be a losse engine mount which is transfering the noise down the car??

Or a lose exhaust "bung" which is flexing as the engine flexes when the clutch released..

Its hard to guess when its a noise!

Rick

[bonerp]

mine does it too. Now idea why. Ive looked and looked for a reason!! Cant be brake cos it does it when you dont use the brakes!

[audi_130bhp]

Same here mine 2. its probabley just a normal thing. My bmw 330 does the exact same thing with the same sound.