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09-04-2019, 09:09 PM | #1 |
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Drives: 2013 M3 coupe' 6mt
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Faulty Spark Plug- Common Problem?
2013 M3 original owner here, with 89k totally trouble-free miles. It had been 37k since the spark plug/trans&diff fluid change service, so I took it to my dealership and they did the work.
Five days later the yellow service engine warning indicator displayed. Took it back to the dealer and they diagnosed a faulty spark plug and replaced it under warranty- no charge. Now, five days later the service warning indicator has displayed again. Have another appointment with the dealership. My question is: Has anyone heard of a faulty new BMW spark plug? Maybe there was a bad lot of spark plugs and these things will be failing one at a time. Thoughts?
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09-04-2019, 10:16 PM | #2 |
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Not really. Maybe your coils are taking a dump. Ask them if the fault is coming back on the same plug.
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Three Pedal Steve874.50 |
09-06-2019, 01:34 PM | #3 |
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The service order says, "Found misfire cyl 2 present. Swapped coil 2 to cyl 3 and spark plug 2 to cyl 1, after test drive confirmed misfire fault followed to spark plug cyl 1. Removed and replaced spark plug. Cleared fault. Work performed under warranty.
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09-06-2019, 01:48 PM | #4 |
Stop the hate, get a V8
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Meh, could be a bad batch or they didn't torque it down properly. I wouldn't sweat it, bad plugs isn't really a "common problem".
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Three Pedal Steve874.50 |
09-06-2019, 07:23 PM | #5 | |
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Quote:
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