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Old 11-20-2017, 11:42 PM
Uncle ENzo's Avatar
Uncle ENzo Uncle ENzo is offline
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Uncle ENzo
Default Spark plug oddness (E91)

So my pal drives down from NYC for me to do a little tune up on his E91. Nothing special. Brakes, belts and tune up. So everything is humming along until I put in the Bosch Double Platinum plugs. I put in those along with fresh OEM coils and the sob wont run yet alone even start. So after swapping back in the old coils, I realize the issue is with the plugs.

Gap was fine and there was no reason I could find why it wouldnt run. I ended up tossing in some NGKs and it was fine. Ive never had this happen with plugs. I could see a rough run or some burping, but no start???
1976 911S
Mazda "Scrotege5" -RIP
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2009 E91 Touring
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Old 11-21-2017, 10:49 PM
HughA44s HughA44s is offline
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Well that is a new one on me. I think I have always used NGKs.
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Old 12-11-2017, 06:57 PM
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Mark Hubley Mark Hubley is offline
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Mark Hubley

FWIW, I just swapped plugs on my new-to-me E90 325i with 110k mikes. I put in NGK Laser Iridium plugs (checked the gaps at 0.040, they were all there out of the box), and the car runs great.
2000 Carrera
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Old 12-15-2017, 07:37 PM
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scott scott is offline
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Default hmmm

i would be suspect of an intermittent 12v supply connection on the coil...

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Old 12-16-2017, 08:31 PM
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Clarke Clarke is offline
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NGK are the only plugs to run in a BMW in my opinion.
Searchin' for my lost shaker of salt.


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'93 BMW 325is
'54 Chevy 210
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