Changing the spark plugs on the 430?
Thread Starter
MBWorld Fanatic!
Joined: Jun 2004
Posts: 1,880
Likes: 9
From: Seattle
05 E55
Originally Posted by CHB
At first I tried a universal joint, which didn’t work as well as planned, so I ended up just using a 3" extension. I found disconnecting the plugs to be more difficult 
Thread Starter
MBWorld Fanatic!
Joined: Jun 2004
Posts: 1,880
Likes: 9
From: Seattle
05 E55
Originally Posted by mmgrad
weren't u selling the car... like a yr ago?
Super Member
Joined: Apr 2006
Posts: 555
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From: Somewhere in Maryland
2000 CLK 430 Cabriolet
Originally Posted by str8ridin
But the wife said it's OK. Now she is singing a different tune. Practicality has to be an issue all of a sudden.
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Super Member
Joined: May 2005
Posts: 558
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From: New York City
2000 CLK 430
Originally Posted by str8ridin
How the heck do you get to cylinders 6/7/8?? It's so tight!! KY is not cutting it. 
Any ideas?
Any ideas?
how many miles on your car do you have that your lookin to change the plugs?
what kind of plugs you swapping them out for?
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MBWorld Fanatic!
Joined: Jul 2002
Posts: 5,289
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From: So Cal
W213 '17 E43 ///AMG - W211, W208 no more
Originally Posted by str8ridin
Yup. But the wife said it's OK. Now she is singing a different tune. Practicality has to be an issue all of a sudden. So, I have a few local buyers coming next week to look at her. $20K.
i figured, she gets to carry a new baby for 9mths, i'll get myself a new baby toooo
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Joined: Feb 2004
Posts: 1,559
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From: Portsmouth, NH
none
Did my C43's 4.3 a few weeks ago. Same setup for plugs and wires. Not sure about similarties in clearance though.
I had to remove the washer fluid tank and put it off to the side. I also purchased some extended reach hose pliers. The pliers made the wire removal much easier. I would replace the wires also. I used magnecore race wires and couldn't be happier.
I think I lucked out and found the perfect extension as the plugs went in/out fine. Very tight clearances though. I found myself breaking them loose with the wrench and loosening the sockets with my fingers. Same going in. Finger tighten the socket and snap on the wrench to finish. I used a torque wrench also to be safe. A little dilectric grease and anti-sieze is also a good idea.
Cold beer is the most important tool needed for this.......also, hood at 90deg
I had to remove the washer fluid tank and put it off to the side. I also purchased some extended reach hose pliers. The pliers made the wire removal much easier. I would replace the wires also. I used magnecore race wires and couldn't be happier.
I think I lucked out and found the perfect extension as the plugs went in/out fine. Very tight clearances though. I found myself breaking them loose with the wrench and loosening the sockets with my fingers. Same going in. Finger tighten the socket and snap on the wrench to finish. I used a torque wrench also to be safe. A little dilectric grease and anti-sieze is also a good idea.
Cold beer is the most important tool needed for this.......also, hood at 90deg
