I'm asking on behalf of a friend who has just bought his first Audi. I've asked for the common faults on this engine in the a6 section as it's an allroad but had no replies and was just wondering if anyone could help here please. His temperature gauge sits at 60 and I was wondering if this is correct for this engine or if it sufffers from the same common failure problem of the 1.9tdi engine of temperature sender and should be reading 90 any help would be greatly appreciated.