Oil on ignition coils? - BMW Forum

d3ity · 07-31-2004, 01:24 PM

Hey all, I removed my ignition coils today, and was suprised by the presence of oil on the "stem" that leads to the spark plug. Is this correct? are these supposed to have oil on them?

d3ity · 07-31-2004, 03:46 PM

Mother fucking bosch platinums.

I took the plugs out and looked at them further, when i wiped the gas and oil away i saw the words BOSCH PLATINUM +4. I am royally pissed. These plugs have cost me over 600 dollars in the past (I had my 6er towed to a dealer, only to have them change the plugs and drive the car off the lot) The plugs are wet, and oily, and all fucked up. Just a warning, DO NOT PUT THESE PLUGS IN YOUR CAR! USE THE OEM PLUGS, there ISNT a preformance diffrence that is that noticable!

325isBaby · 07-31-2004, 07:19 PM

Actually the Bosch Platinum +4 plug is OEM on some BMW models and acceptable to use, Not used for performace modification...and a spark plug won't cause oil in the cylinder.

d3ity · 07-31-2004, 10:17 PM

Then please explain how bosch platinum plugs foul my 6er? I'll find out about the 5er on monday.

upon further inspection, the substance on my plugs appears to be just gas mixed with carbon and crud from the engine.. it smells like gas

sp0rky · 07-31-2004, 10:54 PM

Platinum +4s have been known to cause problems on older BMW engines.

97alpineM3 · 07-31-2004, 11:34 PM

OK.. back to the reason why you have oil and fuel on your coil and spark plug....

Probably because part... of your valve cover gasket and or O-rings... that go around your bolts that hold on your valve cover.. have become old.. and oil has seeped through.... not a good thing... I'd look into ... atleast taking the cover off... and inspecting the gasket... that it probably the problem. GOOD LUCK