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Spark plug and coil change @ 100k on 2008 335i...one anomaly
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| 02-21-2015, 09:30 PM | #1 |
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Spark plug and coil change @ 100k on 2008 335i...one anomaly
OK, so this is the second time I've replaced the spark plugs. Last time was at 75k and didn't notice anything unusual then. This time went pretty textbook but I noticed something unusual on the plugs. All were mostly dry except the plug from #2 cylinder which was slightly wet what appeared to be oil, and darker on the threads and tip. Now, my car doesn't use oil and I haven't had any other issues that I have noticed. Does anyone have any idea if this indicates a problem I should address with #2 cylinder? Thx. Pic attached.
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Andy  '12 E82-PS2,Stoptechs,Clubsports+M3 bits,Accusump,Wagner DP+EVO III FMIC,ERCP,BMS Intake,Mason Strut Bar,Wedge Tune |
| 02-22-2015, 04:37 PM | #2 |
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Is it just the pic, or is #2 plug missing its crush washer?
Either way, I think I've read of possible hairline cracks in the valve cover leading to oil dribbling into the plug orifice.
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E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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| 02-22-2015, 05:04 PM | #3 | |
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| 02-22-2015, 05:40 PM | #5 |
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To me it does look there is a washer, just flush against the plug.
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| 02-22-2015, 09:16 PM | #6 |
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Thx. Yes, there is a washer. Valve cover crack...man, with all that fuel and electric lines routing over the top that has to be a monster job...
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Andy '12 E82-PS2,Stoptechs,Clubsports+M3 bits,Accusump,Wagner DP+EVO III FMIC,ERCP,BMS Intake,Mason Strut Bar,Wedge Tune |
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