Two problems related to transmission gear slipping have been reported for the 2004 Audi TT. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Audi TT based on all problems reported for the 2004 TT.
The transmission slips violently between 2 nd and 3 rd gear. There was a complete loss of power with the pedal down completely. After research have discovered that the design of these triptonic transmissions which can be switched from manual to automatic are faulty and costly to repair. I am considering a valve body replacement which may or may not fix the problem. Audi does not stand behind their product. This is a common problem among Audi owners.
Audi Tt 3. 2 with dsg gearbox. After starting a journey the gearboxfailed and went out of gear. Could only re-engage gear by turning engine off and restarting. Returned vehicle to Audi dealer for investigation and gearbox parameters found normal but with unexplained overtemp registered. Further driving lead to occasional neutral self selecting and also pulsing of engine indicating a gear slippage. Further visit to dealership for dsg oil change did not improve fault. Further dealership diagnosis has lead to mechtronic unit having suspected internal fault. I am currently awaiting Audi decision on warranty claim to help with the â£2500 repair bill.