first things first. i frikken LOVE this car... i bought it as my first car.. sure it has some problems that i cope with but doesnt seem to affect much. after i bought it there were 2 oil leaks. one from the shift shaft seal which only ran me 200 bucks to replace. and another from some weird bolt i had found on the side of my engine. i simply tightend that with a creset wrench to fix it. but today was unusual. i decided to change my spark plugs. and on the third one startinf from the front end of my car working my way back. the third one had oil in it??? i am not so sure what this means but would it be the reason why my car has irregular idle sometimes, that and lack of power on acceleration? i also noticed a heavy smell of fumes before i changed my spark plugs. any info would be helpfull please leave comments id love to be able to keep my car.
OIL ON SPARK PLUGS?? on 1993 BMW 325is
Most likely your valve cover tube seals are leaking, oil gets in there and then creats a miss fire on that cylinder. Most likely you need valve cover gaskets replaced should fix your problems. Hope this helps Thanks Brian at Sidework Performance