servus and hello Ford Mondeo almost new Year of manufacture 94 1,8L 115PS approx. 210`km causes the following problem: goes off in idle mode when you roll to the traffic lights or just so – starts badly – jerks in idle mode something says you also hear on the exhaust that the engine simply does not run clean. Made first oil change – air filter change – spark plugs After the petrol filter has been changed, it has been a little better but not good yet. The engine does not smoke – the engine runs properly through when it has speed and then without any problems. Presumably: the engine pulls wrong air somewhere in the stationary gas via a vacuum line. Does anyone have experience with it? I wanted to go looking for a leak with start pilot now but maybe there is someone who can tell me right away what might be smarter thanks