So - on an 82 240D - is there any way air can get to the fuel pump other than coming in via the fuel line? I was wondering about the altitude compensator. If that failed could it let in air?
I may be barking up the entirely wrong tree here. But for some reason I do keep getting air in the fuel pump. Makes the car hard or impossible to start one hour after it sits hot. Starts but runs rough cold.
Any ideas much appreciated.