Servus dear forum! I gave my hot-loved C4 nem colleague today, he comes back tonight, it clacks out of the engine room.. I turned him off and let him go again, he starts off again, he doesn’t react to the pedal at all… After 5-10 times he arrives.. After another 3-seconds he picks up gas and runs as usual, however, he leaves off a 3x3m soot cloud… Only with these clackers… I checked the injection pump tooth strap, tension is already ok… The whole thing is only when it’s cold!!! If he already runs as always, he starts off once GANZ short and then runs optimally… Except for ugly metallic clackers… That would not even bother me with the start, but this crappy clacking? Do you have a guess? Get him read out in the store tomorrow… I am grateful for every tip!