Hello, I bought an Audi 100 Avant 2.8e Bj `91 2 weeks ago. He jumps great at but the emperaturanzeige says nothing at all, oil temperature indicator shows just over 60 degrees even after longer FAhrt. I have now decharged the temperature sensor and the pressure lines because they were porous. At the stand it does not run quite round as I would expect from a 6 cylinder. At the temperatures there is a white cloud in the stand from the exhaust, smells like unburnt petrol. I can’t really say fuel consumption because I drove 220km. But it seems to be still normal for the engine. Can give me a hint what I should check or test. By the way, mileage is 275000km. Thank you very much in advance. Greeting Wietzer