1 spark plug looks more work than others

CT7 · 05-29-2023, 01:20 PM

hi everyone, just changed my spark plugs on my B58 and noticed one of the plugs was more worn than the others. anyone experience this or know what could cause this? i’d think they all should be worn pretty consistently. this plug is the top one (closest to the windshield)

morritse · 05-29-2023, 06:29 PM

Looks like that hole might be running rich. Maybe that injector is a little leaky

kamilbaran · 05-30-2023, 01:17 PM

May be injector issue with that certain one, check to see if there's any misfires or wear after swapping plugs in that cylinder for precautionary reasons

05-29-2023, 01:20 PM	#1
CT7 Private 16 Rep 98 Posts Drives: 2013 335i Join Date: Mar 2019 Location: Tri State Area iTrader: (0)	1 spark plug looks more work than others hi everyone, just changed my spark plugs on my B58 and noticed one of the plugs was more worn than the others. anyone experience this or know what could cause this? i’d think they all should be worn pretty consistently. this plug is the top one (closest to the windshield) Attached Images
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05-29-2023, 06:29 PM	#2
morritse Second Lieutenant 53 Rep 223 Posts Drives: BMW 440i Xdrive Join Date: Jun 2022 Location: Bay area, CA iTrader: (0)	Looks like that hole might be running rich. Maybe that injector is a little leaky
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05-30-2023, 01:17 PM	#3
kamilbaran Private First Class 138 Rep 182 Posts Drives: '18 Yas Marina M3, '17 M240i Join Date: May 2022 Location: Chicago iTrader: (0)	May be injector issue with that certain one, check to see if there's any misfires or wear after swapping plugs in that cylinder for precautionary reasons
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