W211 AMG Discuss the W211 AMG's such as the E55 and the E63

LFR7AIX gap

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Old Jun 4, 2012 | 03:37 PM
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E55amg/FD3S's Avatar
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03 e55
LFR7AIX gap

Can't seem to find a definitive answer regarding what the LFR7AIX spark plugs should be gapped at. What gap is everyone running on their cars with these plugs?
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Old Jun 4, 2012 | 04:41 PM
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Viper SRT-10, CLS 55 AMG, 2012 Tacoma Off Road 4x4
These plugs are pre-gapped and are not supposed to be adjusted..
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Old Jun 4, 2012 | 05:01 PM
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2003 W211 E55, 2003 W220 S600
pregapped
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Old Jun 4, 2012 | 05:11 PM
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03 e55
What are they pregapped to. I always like to check new plugs before I install them just as a precaution.
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Old Jun 4, 2012 | 06:29 PM
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I found they were all .030-.033 out of the box. If your really modded you might want to gap tighter around .026
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