A6 (C6)
2004–2011 · Saloon, Avant, Allroad · 4 engines
Problems, reviews and reliability for every engine in the A6 (C6). Pick an engine below to see common faults, fault codes and what to check before buying.
2004–2011 · Saloon, Avant, Allroad · 4 engines
Problems, reviews and reliability for every engine in the A6 (C6). Pick an engine below to see common faults, fault codes and what to check before buying.