Spark Plug Question
MBworld Guru
Joined: May 2006
Posts: 2,345
Likes: 10
From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
Plugs = NGK LFR7AIX Iridium IX Spark Plugs (if you plan to increase boost in the future) or else NGK ILFR6A
Tranmission and rear diff service should be done. make sure you change the eletrical connector on the transmission this will prevent the fluid from wicking up into your TCU over time.
Tranmission and rear diff service should be done. make sure you change the eletrical connector on the transmission this will prevent the fluid from wicking up into your TCU over time.
MBWorld Fanatic!
Joined: May 2007
Posts: 6,406
Likes: 140
From: Clearwater Beach, Florida
2016 Cls63s AMG
MBWorld Fanatic!
Joined: May 2007
Posts: 1,793
Likes: 44
From: San Diego
2004 E55
To which OEM? I am running the same plugs (LFR7AIX) and mine were delivered all over-gapped somewhere in the .050" range. The gap for an E55 should be .032"; though there are varying opinions on this, as NGK calls for .039 and my manual calls for .032. I think I gapped mine at .035.
Either way though, my plugs (ordered from Amazon) did not come pre-gapped and they were all in the .050 range.
Either way though, my plugs (ordered from Amazon) did not come pre-gapped and they were all in the .050 range.
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MBWorld Fanatic!
Joined: Oct 2009
Posts: 1,097
Likes: 1
From: Queen Creek AZ
2004 E55 AMG
Peeps,
I need to do this as well, as my plugs are original. Can you tell me the exact plugs you'd recommend based on my mods below? Also should I get new wires? Happy to buy them from a sponsor here as well. Have to support those that help me!
See sig for mods and for what it's worth, I live in AZ (Crazy hot right now), so any plugs that run, "Colder" are good I'm assuming?
Thank you in advance.
Alex
I need to do this as well, as my plugs are original. Can you tell me the exact plugs you'd recommend based on my mods below? Also should I get new wires? Happy to buy them from a sponsor here as well. Have to support those that help me!
See sig for mods and for what it's worth, I live in AZ (Crazy hot right now), so any plugs that run, "Colder" are good I'm assuming?
Thank you in advance.
Alex
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,879
Likes: 22
From: Orange County, CA.
one car at a time
Peeps,
I need to do this as well, as my plugs are original. Can you tell me the exact plugs you'd recommend based on my mods below? Also should I get new wires? Happy to buy them from a sponsor here as well. Have to support those that help me!
See sig for mods and for what it's worth, I live in AZ (Crazy hot right now), so any plugs that run, "Colder" are good I'm assuming?
Thank you in advance.
Alex
I need to do this as well, as my plugs are original. Can you tell me the exact plugs you'd recommend based on my mods below? Also should I get new wires? Happy to buy them from a sponsor here as well. Have to support those that help me!
See sig for mods and for what it's worth, I live in AZ (Crazy hot right now), so any plugs that run, "Colder" are good I'm assuming?
Thank you in advance.
Alex
FYI, the temperature rating has nothing to do with ambient temperature.
MBWorld Fanatic!
Joined: Sep 2008
Posts: 3,575
Likes: 8
From: BC
Haters crazy
To which OEM? I am running the same plugs (LFR7AIX) and mine were delivered all over-gapped somewhere in the .050" range. The gap for an E55 should be .032"; though there are varying opinions on this, as NGK calls for .039 and my manual calls for .032. I think I gapped mine at .035.
Either way though, my plugs (ordered from Amazon) did not come pre-gapped and they were all in the .050 range.
Either way though, my plugs (ordered from Amazon) did not come pre-gapped and they were all in the .050 range.
MBWorld Fanatic!
Joined: Oct 2009
Posts: 1,097
Likes: 1
From: Queen Creek AZ
2004 E55 AMG
MBWorld Fanatic!
Joined: Oct 2009
Posts: 1,097
Likes: 1
From: Queen Creek AZ
2004 E55 AMG
Last question, how much should I pay or how long does it usually take to have somebody install new plugs? This way I know I'm not getting taken for a ride with the labor price.
Thanks.
Alex
Thanks.
Alex
MBWorld Fanatic!
Joined: Oct 2009
Posts: 1,097
Likes: 1
From: Queen Creek AZ
2004 E55 AMG
MBWorld Fanatic!
Joined: May 2007
Posts: 6,406
Likes: 140
From: Clearwater Beach, Florida
2016 Cls63s AMG
MBWorld Fanatic!
Joined: May 2007
Posts: 6,406
Likes: 140
From: Clearwater Beach, Florida
2016 Cls63s AMG
MBWorld Fanatic!
Joined: May 2007
Posts: 6,406
Likes: 140
From: Clearwater Beach, Florida
2016 Cls63s AMG
Senior Member
Joined: Aug 2011
Posts: 450
Likes: 0
From: west michigan
04 E55
