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      11-25-2012, 05:27 PM   #9
Wolf 335
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Drives: 2007 E92 335i
Join Date: Aug 2012
Location: GTA - Greater Toronto Area

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Took the car to the dealer for diagnostics. Turns out it was a misfire in cylinder 1 due to bad ignition coil. The tech interchanged the coils between cylinder 1 and 3 sure enough the misfire followed the faulty coil.

They replaced the ingnition coil along with the spark plug under warranty.

A day after, im letting her hang in DS and sure enough check engine light pops up again car starts to shake like a virgin on prom night. After 30 sec check engine light clears itself and everything is back to normal. I guess ill be going back to the dealer.

Keep you all posted.