Changing Spark Plug Wires necessary?
Thread Starter
Member
Joined: Jul 2011
Posts: 204
Likes: 0
From: San Jose, CA
Mercedes CL55
Changing Spark Plug Wires necessary?
Im planning on changing my spark plugs soon but one of my buddies recommend that I also change out the wires too but my mechanic said I don't have too. So should I just do the plugs or both plugs and wires? Also, which spark plugs should I go for?
MBWorld Fanatic!
Joined: Mar 2009
Posts: 2,630
Likes: 9
From: Chicago
W215 V12TT Build by Speedriven, W221 S550 4Matic
Worry about your ignition coils. I will check with Speedriven since they are doing my plugs as well for the turbos and ask them about the wires for you.
Will update soon
Will update soon
Senior Member
Joined: Jan 2013
Posts: 495
Likes: 47
From: south shore
12' E559
search around for the plugs. i forget what i got but i found a few different threads with who was running what. and iv read both things, that changing the wires helps and that it doesn't. if tyou have the spear coin to play with i say why not
MBWorld Fanatic!
Joined: Nov 2001
Posts: 6,340
Likes: 22
From: Southern California, USA
2003 CL55 AMG
You can check the resitance in your wires using a ohm meter. At 100k many of my wires were holding enough resistance that I went ahead and replaced them for good measure when I did the plugs.
Thread Starter
Member
Joined: Jul 2011
Posts: 204
Likes: 0
From: San Jose, CA
Mercedes CL55
Thanks for all the info guys, Im going to change out the plugs and see how the car drives. If I still have some jerks, Ill probably go ahead and change out the wires too.
