Factory Service interval for N54 Spark Plugs?

fl335i · 05-06-2012, 11:53 PM

What does BMW state on paper that the service interval for the N54 spark plugs should be? Everything I've found points to 100k. Even my Bentley FSM lumps all into the 100k interval for plugs. But I've read some posts about people agreeing that 45k is the real interval it should be for the N54? So what's the skinny?

t3t5 · 05-07-2012, 12:52 AM

I just went in for warranty work for the dealership to replace my side mirror 2 weeks ago, then after the print out, they changed my oil, some filter, spark plugs at 41,xxx miles on my '08 335i e90 under MP.

VTECaddict · 05-07-2012, 01:24 AM

They revised it to 45k on N54. N52 is still 100k.

Tom K. · 05-07-2012, 09:37 AM

And for those under OEM warranty, if your dealer balks at covering the 45k mile change if not also called for by CBS, show them the pertinent page in your Warranty/Servicemanual.

Tom

fl335i · 05-07-2012, 10:46 AM

ok, so there was some revisions and BMW is saying 45k. Cool. No probs. I didn't want to spend $100 and a few hours to pull out plugs that looked new. I know a lot of people that like to pull out Iridium OEM plugs at 30k intervals when they easily last 100-120k. But I'm convinced on these long mileage plugs... I've seen lexus cars go 140k on OEM plugs and I pulled 3 and they were within spec and looked great.

05-06-2012, 11:53 PM	#1
fl335i Captain 146 Rep 942 Posts Drives: 335i Join Date: Oct 2010 Location: FL iTrader: (2)	Factory Service interval for N54 Spark Plugs? What does BMW state on paper that the service interval for the N54 spark plugs should be? Everything I've found points to 100k. Even my Bentley FSM lumps all into the 100k interval for plugs. But I've read some posts about people agreeing that 45k is the real interval it should be for the N54? So what's the skinny? __________________ '07 335i Sedan, base pkg, 6spd Manual, Procede 3 V5 w/NLS, Macht Schnell Downpipes, 18" Staggered 313's w/Conti DWS's, OS Giken TCD LSD, VAC Street Diff Cover, Dinan Oil Cooler, Dinan Intercooler, Akebono Euro Pads, CDV Removed, Black BMW Grilles, Interior & Exterior white LED lighting, LUX Angel Eyes, Debadged, Blend V1 mount, Llumar ATR Tint.
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05-07-2012, 12:52 AM	#2
t3t5 Major 41 Rep 1,089 Posts Drives: '08 335i Join Date: May 2012 Location: San Francisco iTrader: (22)	I just went in for warranty work for the dealership to replace my side mirror 2 weeks ago, then after the print out, they changed my oil, some filter, spark plugs at 41,xxx miles on my '08 335i e90 under MP.
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05-07-2012, 01:24 AM	#3
VTECaddict Where'd my VTEC go? 481 Rep 6,067 Posts Drives: 06 330i 6MT Join Date: Mar 2009 Location: Seattle, WA iTrader: (4)	They revised it to 45k on N54. N52 is still 100k. __________________ AW/Terra \| ZSP \| ZPP \| ZCW \| iDrive \| CA Mods: BC BR coilovers \| Blacklines \| M-tech rear \| dual exhaust \| M3 steering wheel \| BMW SSK \| ZHP shift knob \| High-kick CF spoiler \| NBT Retrofit M3 front control arms \| M3 rear guide rods \| Manzo rear toe and camber links \| Monroe rear shock mounts \| Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear
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05-07-2012, 09:37 AM	#4
Tom K. Major General 124 Rep 5,627 Posts Drives: '07 328iT, '13 Boxster Join Date: Mar 2008 Location: Maryland iTrader: (0)	And for those under OEM warranty, if your dealer balks at covering the 45k mile change if not also called for by CBS, show them the pertinent page in your Warranty/Servicemanual. Tom
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05-07-2012, 10:46 AM	#5
fl335i Captain 146 Rep 942 Posts Drives: 335i Join Date: Oct 2010 Location: FL iTrader: (2)	ok, so there was some revisions and BMW is saying 45k. Cool. No probs. I didn't want to spend $100 and a few hours to pull out plugs that looked new. I know a lot of people that like to pull out Iridium OEM plugs at 30k intervals when they easily last 100-120k. But I'm convinced on these long mileage plugs... I've seen lexus cars go 140k on OEM plugs and I pulled 3 and they were within spec and looked great. __________________ '07 335i Sedan, base pkg, 6spd Manual, Procede 3 V5 w/NLS, Macht Schnell Downpipes, 18" Staggered 313's w/Conti DWS's, OS Giken TCD LSD, VAC Street Diff Cover, Dinan Oil Cooler, Dinan Intercooler, Akebono Euro Pads, CDV Removed, Black BMW Grilles, Interior & Exterior white LED lighting, LUX Angel Eyes, Debadged, Blend V1 mount, Llumar ATR Tint.
	Appreciate 0 Quote