One problem related to wiring has been reported for the 2001 Audi TT. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Audi TT based on all problems reported for the 2001 TT.
Lower ball joint noise. Previously adjusted and previously replaced entire lower control arm. Electrical ghost obstructs several functions. Noisy a/c clutch. Unidentified thump while downshifting. Secondary actuator valve. Seat back adjustment. Blower motor failure.