hi, i need help,,can anybody advise me what to do,my 318i 2004 lost power after i had a top overhaul where gasket and oilseams were changed (oil leakage)..it was ok after i took delivary but without any warning indicator on the dashboard it seems it was not able to accelerate, it got worst by the day,,The mechanic have try everything, diagnostic, changing part from other bimmers just to test what was wrong,,but he just could not solved the problem,,he says the last thing he can do now is to check the ECU from other car. Any suggestions please Please help..(I have changed 4 new cylinder coil, in January 2011 and a water hose before this)