Hi all,

I own a 02/2005 645ci. Recently I`ve started to experience strange hickups when igniting the engine. Seems like one cylinder is always kicking in before the others. This occurs once in every 10-15 engine starts, always when the engine is hot (or at least not cold).
Been to the dealers and they have changed some relays in the glovebox compartment, and reprogrammed the software, but the problem doesn`t go away.
The thing is that always when I come to my dealers - the car ignites normally.

Any suggestions?