My friend has the above car (2.5 TDI 2004) and is suffering severe noise sometimes when turning the steering wheel. The noise is so bad it vibrates the whole car.
It has been back to the dealer twice so far and has had a new pump and a new pipe of some sort but with no real change.
It seems to be ok when cold but gets starts when the car has been driven for
10 or 15 mins and mainly when stopped.Anyone heard of this before and any idea on the solution.