Table 1 shows twelve common engine and engine cooling related problems of the 2001 Audi A6. The number one most common problem is related to the engine exhaust system (two problems). The second most common problem is related to the gasoline engine (two problems).
Driving westbound on i20 from columbia, SC to st robert/fort leonard wood, mo when engine suddenly lost power. Limped about 3/4 mi to next exit and called for a tow truck. Transported vehicle back to nearest Audi dealer (45 mi east) in columbia, SC. Audi of columbia did diagnostic and after $2527. Read details...
This is the second A6-4. 2 that has this problem. The car dumps all power from slow speeds. Imagine pulling out into traffic from a side street or onramp and turning the ignition off. Audi replaced my first A6 because of this problem and now according to the service managers at the dealership has Read details...
The contact owns a 2001 Audi A6. The contact stated that a valve that allows air in the crankcase freezes. This causes a build-up and prevents oil from escaping due to the frozen valve. The failure occurs in cold weather conditions. Read details...