Since i bought my second hand Audi A2 TDI se I've been experiencing the now famous Mooing noise coming from the engine. Thanks to this forum it would appear that the cause is the EGR valve that is causing the problem. I rang my local Audi Dealer in York and asked them if they would have a look at it and correct the fault, they informed me that there would be a charge of £88 for the pleasure of diagnosing the fault and a further undissclosed charge for the work to be carried out. Does anybody know how I can get the work carried out cheaper than this ?. I guess the car is out of warrenty as its a 2001 Y reg and it done 49,000 miles. The service record is upto date. York Audi were not even interested in discussing the fault and denided that it was a common fault with the A2.