Two problems related to catalytic convertor have been reported for the 2000 Audi A6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Audi A6 based on all problems reported for the 2000 A6.
The check engine light came on. The code for the light indicated a failed catalytic converter had failed, this was at 78k miles the dealer said that it must fail again before 80k mile to be cover under warranty. It failed again at 87k mile and now the dealer won't replace it under warranty.
Both catalytic converters failed at 78,000 miles. Called and wrote to Audi, wanting this covered under warranty; was told three different things regarding coverage (1. 'don't know," 2. 7years and 70,000 miles, 3. 8 years and 80,000 miles. ) was repeatedly rebuffed. Cost $4600 to fix. Audi 2000 A6. Wrote to vice president - Audi of America - axel meese - two months later response said no again and quoted some other warranty (3 years and 50,000 miles) in all my years of car owning, I have never had one catalytic converter fail, let alone two. I feel that this is a defective car, and think Audi should cover the failure of the catalytic converters.