M50 325i Plug Coils

[Fireblade]

Had this rough idling problem when engine is cold. Usually happens when the car has not been started for 2~3 days. Its fine when it is warmed up. The mechanic said that its due to the plug coils - there are some whitish marks on the coil body of all 6 coils. Gonna cost around RM180 each to replace. Has anyone encountered this problem before and how soon do you need to replace once you have this problem?

 

[535i]

Yup .... it's not the coil ...
U hv to change to MAF :lol:

 

[Fireblade]

Originally posted by 535i@Feb 7 2005, 04:48 AM
Yup .... it's not the coil ...
U hv to change to MAF :lol:

I think mine is MAF. I suspect its the fuel pump. Anyone has any other ideas on what the problem could be?

 

[Fuhrer]

i think you should take it somewhere else for a 2nd opinion rather than fork out more than 1k & have the problem repeat itsef.
i replaced my coils because a few of them were crack. but my problem wasn't like yours. no rough idling at all..

 

[Fireblade]

Yup, I should go to another workshop to get another diagnosis - still not quite convinced its the coils. Thanks Fuhrer.