The car start difficult in the morning (after second or third attempt) and during the day also either the engine is cold or hot. It was washed in the Opel garage before replacing some headsets due to the oil leak. The petrol pump was replaced last year and the battery looks OK. The oil and sparks were regularly replaced by Opel garage.

Any idea what can cause this problem?

I had impression that something is wrong with petrol/air or whatever distribution in the beginning (first turns) and then on the second or third all become normal.

Thank you for helping me.