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      07-08-2013, 05:07 PM   #29
Sleeper
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Drives: '23 BSM X5///MC
Join Date: Dec 2011
Location: North

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^For sure. If you look at the N54 and N55's, plugs and coil packs are the first things to get swapped out when the car is misfiring. I had to do mine a couple of times as well, and of course earlier than the recommended service interval. If you tune the engine, the misfire onset is that much earlier too....

The combination of injectors/plugs/coils is pretty weak on these engines.
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