A6 Avant 2.5Tdi SE 150bhp severe vibration judders at speed on corners
 

Hi there,

Im new to this!

Ive had my Audi a long time now, its on 180,000miles a year as i do 30K a year on average, i love it to bits, the torque is great and it will regularily hit 130mph downhill on open stretches. It is a 1995 model, of teh shape before teh more rounded just replaced current shape.

However, the steering is certainly not like it used to be, there is quite a bit of feedback through teh wheel that could certainly not be called positive whilst driving, and on motorway corners there is often what can only be described as violent shaking of the wheel and car even from the front wheels, especially the left from memory.

The brakes suffer because of this vibration, in the sense that the wheels they are stopping are shaking.

I have actually had the bearing replaced as this was making a different type of vibration, my mechanic says that its the tracking thats wrong, however once before i had this an dhad a part replaced (for a bout 35£ a side), but i cant remember what that was called!

It had bent slightly i think from memory, could have been called a CV link or something i think!!???

If anyone has an idea what it could be please help!
thanks
edd

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RE: A6 Avant 2.5Tdi SE 150bhp severe vibration judders at speed on corners
 

Several things could cause problems. A wheel that is out of round or the rubber is separating from the plies. Even if the wheels are new and balanced it doesn't mean anything. You can perfectly balance an out of round wheel/tire. You will need to lift the car and spin the wheels by hand and check for that oval, egg shape or lumps in the rubber.

Also the centerline differential can give you vibration problems as well if any of the center support bearings, Universal or CV joints are bad. Trouble shooting this problem is a lot more complicated.

There might be other areas to examine but the mentioned two, I have experienced first hand.

RE: A6 Avant 2.5Tdi SE 150bhp severe vibration judders at speed on corners
 

hi
thanks for teh advice

i suspect sadly its teh second point you make!
edd

RE: A6 Avant 2.5Tdi SE 150bhp severe vibration judders at speed on corners
 

I have read that Audi doesn't sell any service parts for the drive shaft assembly just the whole unit, at least not in the states, but parts from BMW and Mercedes fit right in and could be acquired as individual pieces.