Im in the process of changing my spark plugs and ignition coils in my 06 323i and as I took the last one out it was filthy with what looked like rust. What would have caused this and should I clean the slot that it goes in I assume? What would be the best way to go about that?
my 2001 bmw 330ci blew out a spark plug and the threads on the cylinder head are destroyed.
I was looking at the timesert spark plug inserts kit and they seem to be a solution to my problem, however i would appreciate if anyone has had experience using this spark plug thread repair kit and if...