i am fairly new to audi ownership having bought my 2004 a4 tdi sport avant with multitronic gearbox in december. it is due its 30000 mile service next week and i have noticed that when in drive or sport mode it has a judder to it when setting off from a standstill. this only lasts a few moments but is becoming increasingly annoying. Is there a simple fix to this or does it mean yet another trip to the dealers??????????? Blackburn audi have quoted me 349 inc vat for the service. is this steep?????????