Originally Posted by witeshark
Could it be an over active fuel pump?
it could be i should mention its been out of action since last year june also the rubber pipes which connect to the injectors were replaced the water pump and oil pump were changed there a leak in large pipe that connect from air filter box( what ever its called).everything is stock standard except for the exhaust system. il give some history about it the car started overheating last year ended up burnin da gasket which lead to a cracked cylinder head, which then lead to the cylinder head going missing then turning up again after we had already gotten another cylinder head. when putting it back the timming was all wrong kept bending valves but thanks to this i found pictures of the right timming anyway the battery ran out we decided to kickstart it worked but then turned of we tried again this time i was kick starting, situation went from bad to worsterrible only word to describe . anyway as i was kick starting it it made like it was about to pickup i head a knock more like a thud from the bottom of the car. the piston had gone loose or something smacked into the block chipped nd made a tiny hole, my dad took the block to the engineer had it welded and mended into place we put the block back now we back to the overflowing gas . many mechanics have come and fixed this car this is the bmw from hell problems after problem my dad dont want to give it up aargh anyway yeah thats all folks