One problem related to transmission slip out of gear has been reported for the 2003 Audi A6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Audi A6 based on all problems reported for the 2003 A6.
I have had numerous problems with my 2003 Audi A6 cvt transmission. The entire transmission had been replaced recentley, but the slipping out of gear problem continues with new one. The san diego Audi dealers have told me that they cannot find the problem, but have told me to let the transmission fail completely again and they will replace it under warranty again.