2007 BMW 325i Base 6 Cyl 2.50L
Transmissions & Drivetrains
BMW e90 325i Car has rough idle on cold start. Sounds like car is switching on and off all the time When car dies it lo
Several possibilities; poor quality fuel, worn fuel injectors, worn ignition coil, clogged / dirty air intake filter, dirty air intake mass air flow sensor (clean using a specific mass air flow sensor spray), worn spark plugs, engine vacuum leak - to list only a few.