I have a 2005 Volkswagen GLI w/80,000 miles on it and it seems like the transmission is slipping. Specifically there is hesitation when I accelerate and the RPMs rev but the gear seems not to engage, then it does lurch a bit. This happens it what would be 2nd or 3rd gear (it's automatic). I've taken it to 2 non-Volkswagen mechanics who tell me I need a $4-5 thousand dollar tran job! Help!!!