Change yer spark plugs!

kbcons · 11-22-2014, 07:18 PM

2009 E90 LCI, 87K miles

I assume these are the original plugs. Kinda says something about the coil packs that they (mostly) put up with it. Had a little misfire issue when I really romped on it getting on the freeway a few days ago. Cleared itself in few hundred feet, but I was figuring coil pack.

Now I'm thinking that the coil packs are okay, but didn't like jumping across .080" under heavy load. I've never seen a stock plug worn like that. This is #1, but they are all in similar shape.

New Iridiums and coil packs today. Smoother, zippier; what's not to like? The old coils are being stashed away.

Ken...

mike3000fl · 11-22-2014, 07:24 PM

heres my thread with pics of a 200,000mi plug change... http://www.e90post.com/forums/showthread.php?t=1020214

batman_e92 · 11-22-2014, 07:28 PM

I dont think the NJK's are oe ....njks wear out faster than the oe's

Antetokounmpo · 11-22-2014, 08:08 PM

Quote:

Originally Posted by batman_e92

I dont think the NJK's are oe ....njks wear out faster than the oe's

+1, NGK are aftermarket spark plugs.

PichaDis11 · 11-22-2014, 10:16 PM

I agree.. Car just feels entirely different. Preppy and ready to go with the hesitations and codes..

Dozhdbog · 11-22-2014, 10:29 PM

Quote:

Originally Posted by PichaDis11

I agree.. Car just feels entirely different. Preppy and ready to go with the hesitations and codes..

BMWs are kinda preppy, aren't they... Maybe not as much as Saabs were, but Saab's gone now so BMWs will have to do.

PichaDis11 · 11-22-2014, 10:36 PM

Quote:

Originally Posted by Dozhdbog

BMWs are kinda preppy, aren't they... Maybe not as much as Saabs were, but Saabs gone now so BMWs will have to do.

lol I wish I had the chance to experience the drive. Until then preppy it is....

kbcons · 11-23-2014, 09:27 PM

It appears there is some question about the old plug being original to the car, or OEM.

Here are four additional images of the plug in the top post of this thread. Note, in particular, the part number stamped in the fourth image; PLZFR6A-11S.

Below are screenshots from NGK's website. The first shows a listing of the plugs NGK makes for the car. Note here the "#" next to PLZFR6A-11S, and that it references the footnote, "# Original Equipment Manufacturer, and/or Original Equipment Service Part"

I did not use the Platinum OE part, PLZFR6A-11S. I opted for the Iridium IX, part number LFR6AIX-11. It is an equivalent plug to the Platinum OE part, and $3.49 per plug less expensive.

Hope this helps.

Ken...

11-22-2014, 07:18 PM	#1
kbcons New Member 1 Rep 27 Posts Drives: 2009 E90 Join Date: Aug 2014 Location: Behind the Orange Curtain iTrader: (0)	Change yer spark plugs! 2009 E90 LCI, 87K miles I assume these are the original plugs. Kinda says something about the coil packs that they (mostly) put up with it. Had a little misfire issue when I really romped on it getting on the freeway a few days ago. Cleared itself in few hundred feet, but I was figuring coil pack. Now I'm thinking that the coil packs are okay, but didn't like jumping across .080" under heavy load. I've never seen a stock plug worn like that. This is #1, but they are all in similar shape. New Iridiums and coil packs today. Smoother, zippier; what's not to like? The old coils are being stashed away. Ken...
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11-22-2014, 07:24 PM	#2
mike3000fl Banned 138 Rep 2,731 Posts Drives: 06 330i Join Date: Feb 2010 Location: Tampa iTrader: (0)	heres my thread with pics of a 200,000mi plug change... http://www.e90post.com/forums/showthread.php?t=1020214
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11-22-2014, 07:28 PM	#3
batman_e92 Second Lieutenant 21 Rep 268 Posts Drives: 2007 335i Convertable Join Date: Oct 2013 Location: Ottawa, On iTrader: (1)	I dont think the NJK's are oe ....njks wear out faster than the oe's
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11-22-2014, 10:16 PM	#5
PichaDis11 Colonel 295 Rep 2,202 Posts Drives: E90 N52 Join Date: Mar 2013 Location: NY iTrader: (3)	I agree.. Car just feels entirely different. Preppy and ready to go with the hesitations and codes.. __________________ Retrofits: 322, 609, 6FL, 6NR, 6VC, 2TB.. Upgrades: Bilstein B8 Eibach Spring kit
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11-23-2014, 09:27 PM	#8
kbcons New Member 1 Rep 27 Posts Drives: 2009 E90 Join Date: Aug 2014 Location: Behind the Orange Curtain iTrader: (0)	It appears there is some question about the old plug being original to the car, or OEM. Here are four additional images of the plug in the top post of this thread. Note, in particular, the part number stamped in the fourth image; PLZFR6A-11S. Below are screenshots from NGK's website. The first shows a listing of the plugs NGK makes for the car. Note here the "#" next to PLZFR6A-11S, and that it references the footnote, "# Original Equipment Manufacturer, and/or Original Equipment Service Part" I did not use the Platinum OE part, PLZFR6A-11S. I opted for the Iridium IX, part number LFR6AIX-11. It is an equivalent plug to the Platinum OE part, and $3.49 per plug less expensive. Hope this helps. Ken...
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