Upgrade spark plugs for tune Mercedes
Newbie
Joined: Jul 2014
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2014 E63 AMG S
Senior Member
Joined: May 2016
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E63 amg s
I second the brisk plugs avoid at all costs. I used to own a 2014 ecoboost pickup and there were plenty of cases where brisk plugs broke apart after just a few hundred miles. Avoid at all costs.
Research Ecoboost F150 brisk plug failures. They are junk
Research Ecoboost F150 brisk plug failures. They are junk
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MBWorld Fanatic!
Joined: Feb 2010
Posts: 1,380
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From: Toronto
CLS63 PP
Hate to tell you but detonation caused your trouble not the plug. You have physical damage to the plug. You haven't even pulled the head off yet so not sure why you think the problem is your plug. I bet a chunk of ring land is missing too.
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Joined: May 2015
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e63
When the blood was broke so only the smoke coming from the engine bay when I open the hood and she was literally covered in oil I checked the block there's no crack and I found tons of oil inside the and I found tons of oil inside the Ephrata air box
Super Member
Joined: Mar 2008
Posts: 546
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From: Chicago
15 S63, 18 Ram 2500 Cummins
I was told that if you have the 2012/2013 E63 models, you should upgrade plugs if doing a tune. 2014+ E63 came with a colder plug and now if you were to buy a plug for a 2012/2013 that you would get the 2014+ plug. I called the dealer and they confirmed it, so whose using these updated plugs with a tune and is fine?
Super Member
Joined: Mar 2008
Posts: 546
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From: Chicago
15 S63, 18 Ram 2500 Cummins
yes, now they are but originally there weren't. Originally the 2012/2013 had hotter plugs which caused the misfire, so they changed the part # and gave the 2012/2013 the same plugs as the 2014+. If you ask the dealer, they'll tell you the 2012/2013 got new part #s due to the change
MBWorld Fanatic!
Joined: Feb 2011
Posts: 2,841
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From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
yes, now they are but originally there weren't. Originally the 2012/2013 had hotter plugs which caused the misfire, so they changed the part # and gave the 2012/2013 the same plugs as the 2014+. If you ask the dealer, they'll tell you the 2012/2013 got new part #s due to the change
MBWorld Fanatic!
Joined: Feb 2011
Posts: 2,841
Likes: 202
From: miami / delray beach
2014 E63s amg 4matic, 2009 C63, 2006 E55 AMG , 2001.5 AUDI S4 stg 3+ w/meth
I was told that if you have the 2012/2013 E63 models, you should upgrade plugs if doing a tune. 2014+ E63 came with a colder plug and now if you were to buy a plug for a 2012/2013 that you would get the 2014+ plug. I called the dealer and they confirmed it, so whose using these updated plugs with a tune and is fine?
i have them and have not had a problem with misfires for about 10K miles tuned so far
Super Member
Joined: Apr 2009
Posts: 752
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From: Orange County CA
CLS63S
Super Member
Joined: Mar 2008
Posts: 546
Likes: 3
From: Chicago
15 S63, 18 Ram 2500 Cummins
yes, got my updated plugs today as well as a SPEEDRIVEN tune, my 2012 E63 had the original plugs and they were all white which clearly means they were getting hot. They definitely would've exploded if I were to leave them on with the tune. The stock updated plugs are the way to go IMO. Forget everything else
Junior Member
Joined: Jun 2012
Posts: 48
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From: Mercedes Benz of Catonsville, Maryland AMG Performance Center, Renntech Dealer
2005 E55 AMG - Weistec Supercharged, 1994 Nissan Skyline GTST (650whp), 2012 E350 4-Matic (Wifeys)
I can confirm that MB has changed/updated spark plugs, and I've also attended the technical engines Class for the M276/M278 direct injection engines. One thing I remembered is that the spark plugs/electrodes were indexed, meaning that the threads of the plugs and the electrodes were "timed" the same on every plug, and all of the threads on the cylinder heads start at the same place, so when the spark plugs are properly torqued, the electrodes wind up in the same position inside of the combustion chamber in every cylinder. I highly recommend running factory plugs on any sort of tuned engine south of ~850hp. My dealership deals directly with Renntech, and Rennntech suggests the use of OEM Mercedes Benz plugs, saying they need replacement every 10k-15k miles. In my vehicle with their "intermediate" tune, I run the gaps slightly tighter than factory, around .024. Also noteworthy, we have been replacing cylinder heads for burnt valve seats, so while replacing a spark plug is probably one of the quickest and most cost effective way to "troubleshoot" a misfire, spark plugs aren't always the cause. There's some great information in this thread, but I figured I'd put my .02 cents in for some food for thought.
