The resistance values you state are correct for
each of them , bosch is 1k ohms and bremi is 1.8k ohms
Also bmw recommends that you only use on manufacturer of coils on the engine. Problems can occur otherwise.. Ie . all bosch or all bremi etc...
I have had very good results with bremi, even better than bosch. I wouldn't use meyle unless i had to.
Quote:
Originally Posted by Interceptor
OK, guys, today I wanted to check out the spark plugs and discovered that those rubber "dildos" (I don't know the correct term so I'll just use this one :)) that connect the coils with the spark plugs have different kOhm ratings?! Wtf?
Two of my coils are original BMW (BREMI) and have 1.8k Ohm dildo attached to it, and 4 of them are Bosch which have 1k Ohm dildos. I also noticed that those parts have different part numbers. I suppose this isn't right, ay?
I also noticed that those original BREMI coils are starting to develop some candy underneath - not much, just a few mm, but still visible. Should I swap them now before they fry my Motronic? Could this be the reason for a slightly lumpy idle and hesitation in lower rpm range?
Btw., I suspect my valve cover gasket is leaking - I found some oil in one of the spark plug holes and the rubber dildo had oil on it so I guess it's dripping from above?