100k on original spark plugs? - MBWorld.org Forums

Oct 1, 2011 | 05:30 PM

itsfast

Thread Starter

Newbie

Joined: Oct 2010

Posts: 14

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From: NoVa

2004 E55

100k on original spark plugs?

Ive been debating changing out the plugs but only have 62,xxx miles on them and the beast is still running strong. Do you guys think it would be a good idea to replace them due to time and not mileage? By not changing them yet could I be at a slight loss of horsepower and just not noticing it?

Oct 1, 2011 | 05:32 PM

Alps

Super Member

Joined: Jul 2003

Posts: 639

Likes: 33

From: London UK

E63s s213 2019 ,SOLD E63 Weistec, E55, C36

id change them just to ensure they do not get jammed in the block!

Oct 1, 2011 | 06:41 PM

AWOL

MBWorld Fanatic!

Joined: Nov 2009

Posts: 1,006

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e55

I changed mine around the 100k mark. There wasnt any issues to do it, and accordingly, i didnt notice any performance gain. I kept them for backups however.

Oct 1, 2011 | 06:52 PM

abiazis

Super Member

Joined: Jul 2009

Posts: 603

Likes: 2

From: Asheville, Atlanta

SL 65 AMG, Porsche 911 (993), 2014 Cayenne GTS, 2013 Toyota Highlander Limited

sparkplugs

Check manual to see if there is a recommended time interval change........my manual for my SL65 states to change plugs after 5 years regardless of mileage........don't know if E class also states this...