Quote:
Originally Posted by lowbudgethero
Your mechanic should be able to diagnose if the coils are the cause, I wouldn't replace it unless it's the actual cause of the problem. Some people had to replace them very early, but none of the people I know personally had to replace them before 100K miles so I don't think it's that common.
230 for plugs is a lot considering it's only about 1/2-1 hour of labor for the average joe (not sure what they actually bill for), plugs are generally 80-100 bucks for OEM BMW
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+1
Coils have to be pulled anyway to do plugs, so it's really no additional labour. Same procedure when re-using the old ones with the exception of new coils being removed from the packaging. Regardless, determine the cause prior to just throwing money at it