Two problems related to battery dead have been reported for the 2002 Audi TT. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Audi TT based on all problems reported for the 2002 TT.
2002 Audi Tt - major electrical problems with the in dash computer. Battery goes dead while driving and all indicator lights come on. Speedo and all instruments go dead.
2002 Audi Tt had instrument cluster replaced @41,000 miles when I bought the car in January 2007. Recently, the battery went dead after sitting 5 days. When it was restarted and the battery recharged, the instrument cluster is acting up again. I understand that this is a very normal occurrence in these cars. The problem can (and has) caused the speedometer to stop working. There is now 45,00 miles on this car.