Questions & Answers for: Audi A4 10c in a m

... Perfect conditions, no oil leaks whatsoever. Left the car off for two weeks in very cold weather (-10C down to -25C). When I restarted, it started immediately but with heavy rattling noise due to ...

and ecu say 26c.( or without engine running.) the engine sensor needs changing. if out side temp is 10c and air sensor for intake is 26-96 then change it