Hello! I’m more of a newcomer in relation to Audi 5-cylinders. Mine runs very badly in idle. I would say it “saws”. Speed varies between 600 and 2000 revolutions. Sometimes it dies completely. It doesn’t matter whether it’s warm or cold. When it starts it has no problems. If I let it roll, it usually has a higher speed (approx. 1500 u/min). I had already changed the “cigar”. It didn’t do anything. I also checked the hoses already (with brake). ncleaner) – also no reaction. Spark plugs are new, ignition distributor was also newly installed. I am grateful for every answer. But please explain exactly – am (yet) not so experienced with NG engines. Oh yes, the said engine, which it is about stands at the bottom in the signature.