e55 spark plugs!one step colder ngk?
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2003 e55
e55 spark plugs!one step colder ngk?
Does anyone use ngk lfr7 colder plugs on stock e55? How dies the car perform? I leave in michigan where is pretty hot in the summer and pretty cold winters.what do you guys think?
Last edited by aggi78; Jan 19, 2014 at 09:36 AM.
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Joined: Nov 2006
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From: NJ/Greece
2006 CLS55 & 2002 SL55 (R129) Silver Arrow
Just installed a set of NGK's (one step colder) in my CLS. The ones I removed were decent-poor in condition.
Car idles smoother and there's no indication that the car doesn't like the colder plugs.
Car idles smoother and there's no indication that the car doesn't like the colder plugs.
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2003 e55
We had the -36F feel last week.crazy storm.it usually stays around 10F. if that happens again i am wondering if it will affect the running with colder plugs.will the engine stay colder than regular running temperature?
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From: Charleston, SC
E55K, Black on Black. C63, Black on Black. SRT-10 NightRunner 363of400
Any thoughts on changing wires at the same time? Some people say yes, some people say it's not necessary unless they are bad...
Any advice here?
Any advice here?
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From: Folsom, CA
2005 E55 AMG
MBWorld Fanatic!
Joined: Dec 2011
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From: Folsom, CA
2005 E55 AMG
Thread Starter
Junior Member
Joined: Jan 2014
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2003 e55
No necessary to change the wires.they dnt really go bad unless the coil on top craks for some reason.they are not even listed on a manual as things to change for mantenace reasons. spark plugs need to be changed every 100k miles by the book.but in alot of cases way earlier than that.they make a difference.
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Joined: Jul 2013
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From: Charleston, SC
E55K, Black on Black. C63, Black on Black. SRT-10 NightRunner 363of400
I've got a track day on friday and want to get the plugs done before then. I assume the gaping on the colder plugs is the same as the OEM plugs??
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Joined: Nov 2006
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From: NJ/Greece
2006 CLS55 & 2002 SL55 (R129) Silver Arrow
I wouldnt be too concerned with only one step colder. If it were two or three steps colder I'd probably second guess it as well, but one step colder is not that much of a difference.
Go for it.
Go for it.
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From: Georgia
E 63S Wagon Renntech, E55 Renntech, SL65, SL 55 030, ML, bunch of old ones--they come, they go...
Sorry if I have missed it....
can someone confirm the correct NGK number for the one step colder plugs? Thanks...
Senior Member
Joined: Jul 2013
Posts: 366
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From: Charleston, SC
E55K, Black on Black. C63, Black on Black. SRT-10 NightRunner 363of400
^^^^^^^^^^^^^^^^^^^^
Try this link for the part.
http://api.viglink.com/api/click?for...39110984550310
Try this link for the part.
http://api.viglink.com/api/click?for...39110984550310
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From: Florida-Germany-New York
2004 E55,1969 300SEL6.3,2011 ML350 BlueTec Diesel,2005 ML400 CDI
FWIW The SLR uses ILFR6A or LFR6AIX-11 NGK. Note, these are 6 series heat range. NGK's have a very wide heat range.
Super Member
Joined: Feb 2013
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From: SE MI
2005 Mercedes E55 AMG
Where in MI are you located? I've only seen one other 55 on the road. Also, you're driving it now? I couldn't get out of my sub in March last year, lol, mine's been parked since November.
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From: Clearwater Beach, Florida
2016 Cls63s AMG
damm i had a website were i bought mine and alot of members here did too but i just dont remember it anymore :/ they were like 98 bucks shipped for all 16
