Change Your Plugs/Wires
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MBWorld Fanatic!
Joined: Jul 2010
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SL55, S500
Change Your Plugs/Wires
I guess 100k isn't really the threshold..
Took about a few hours.
The hardest part was getting the wires to snap onto the plugs as it was tight in the rear.
All my idle vibration is gone. The only way I can tell the engine is on is because the cluster is on.
Took about a few hours.
The hardest part was getting the wires to snap onto the plugs as it was tight in the rear.
All my idle vibration is gone. The only way I can tell the engine is on is because the cluster is on.
Super Member
Joined: Oct 2011
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2004 CLK 500
I just did mine the other day at 108k and all the gaps were toast.. They should have been done a long time ago.. didn't replace the wires though, but I guess I am going to, everyone keeps saying how much better it is with new plugs..
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MBWorld Fanatic!
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SL55, S500
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From: Clifton, NJ
96 and 08 911 turbos
Thread Starter
MBWorld Fanatic!
Joined: Jul 2010
Posts: 4,359
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SL55, S500
I just followed this guide here:
http://www.youtube.com/watch?v=eycUkQ9T1V0
He sprayed it on the wires.
Super Member
Joined: Jan 2008
Posts: 508
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From: california high desert
2003 S500, 03 C240, 03 E320, 03 tahoe
plug gaps matter
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Thread Starter
MBWorld Fanatic!
Joined: Jul 2010
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SL55, S500
What's your mileage?
Could be motor mounts, I read some people say trans mount, but why would it cause vibration...
Last edited by Das Geld 2; Jan 16, 2012 at 07:49 PM.
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From: NYC/FT Lauderdale
W220 M113K
Junior Member
Joined: Apr 2011
Posts: 31
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From: Chicago, IL
2003 S430 4Matic
I have 120k. Checked mounts, looked fine not cracked or broken. Only thing possibly the age and rubber is soft. It is 2003. Your sparks did not look bad from the picture. I saw sparks with 100k on them already burned out. I have to print out service record from dealer because my sparks look like new, unless the gap is too big.
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MBWorld Fanatic!
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SL55, S500
You want a true test too see if it's your mounts?
It's dangerous, but it gets the job done. Do it on an empty road or LOT.
A. Start The Car
B. Pop Your Hood and leave it up
C. Get back in your Car with the HOOD UP
D. Put the Car in D and FIRST GEAR
E. FLOOR it for a SPLIT second(jack Rabbit) and watch where the engine goes as your peer through the little gap between your hood and the windshield.
It's dangerous, but it gets the job done. Do it on an empty road or LOT.
A. Start The Car
B. Pop Your Hood and leave it up
C. Get back in your Car with the HOOD UP
D. Put the Car in D and FIRST GEAR
E. FLOOR it for a SPLIT second(jack Rabbit) and watch where the engine goes as your peer through the little gap between your hood and the windshield.
Super Member
Joined: Oct 2011
Posts: 933
Likes: 25
2004 CLK 500
You want a true test too see if it's your mounts?
It's dangerous, but it gets the job done. Do it on an empty road or LOT.
A. Start The Car
B. Pop Your Hood and leave it up
C. Get back in your Car with the HOOD UP
D. Put the Car in D and FIRST GEAR
E. FLOOR it for a SPLIT second(jack Rabbit) and watch where the engine goes as your peer through the little gap between your hood and the windshield.
It's dangerous, but it gets the job done. Do it on an empty road or LOT.
A. Start The Car
B. Pop Your Hood and leave it up
C. Get back in your Car with the HOOD UP
D. Put the Car in D and FIRST GEAR
E. FLOOR it for a SPLIT second(jack Rabbit) and watch where the engine goes as your peer through the little gap between your hood and the windshield.
Junior Member
Joined: Apr 2011
Posts: 31
Likes: 0
From: Chicago, IL
2003 S430 4Matic
I talked to the mechanic at the dealership and was told to replace trans mount, even when it looks good rubber deteriorate and lower trans, and then vibrations may appear. It is the cheapest option since no other visual or electrical problems appear.
