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1997 MB SL500 -40th Anniversary Edition........2004 E500
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61 Posts
Discussion Starter #1
I am really wanting to change the plugs on my E500 myself , but cannot figure the best way to get to the rear banked plugs on either side.There is less then 4 in. from plug to side of wheel well wall and just seems nearly impossible to get to.
Looking at it from all angles, I can't figure out how the pros at MB would do it.
Any tips would be greatly appreciated and would help me decide to let an MB pro do it.Problem is, they quoted me $700 @ dealer, seems like a lot of $$$ for replacing 16 plugs.
 

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99 ML430, 00 ML320, 05 E500 4matic Wagon
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22,144 Posts
They use on offset 17mm wrench to pop off the metal boots.

Then a spark plug socket that has a flex joint in it. I just did it on the ML and the clearance
is even less.

I also did the E500 two years ago using those tools listed.
 

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Registered
1997 MB SL500 -40th Anniversary Edition........2004 E500
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61 Posts
Discussion Starter #3 (Edited)
Thanks for that bit of info. I will look for the flex socket , probably go to Sears. Since there are so many, can you tell me exactly which one is used,i.e. an extended socket with an extension or without?
 

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Super Moderator
99 ML430, 00 ML320, 05 E500 4matic Wagon
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22,144 Posts
You will need tools that lok like this, but do not pay the insane dealer price for MB special tools.
The offset 17mm wrench is about $20-$25.
The 5/8" socket ranges in price from the vendor. I would expect it to be less than
$15 at Sears. I recently saw a Stanley one for $9 at a big box store.

Please forgive image quality.
 

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Registered
1997 MB SL500 -40th Anniversary Edition........2004 E500
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61 Posts
Discussion Starter #5
Excellent! This will make it so much easier now that I know what to purchase. Now if the job itself goes as smooth... I will have saved some really big bucks.
I have the 17mm offset wrench , just got to get the spark plug socket that has the universal on the end.
Thanks for the info and prompt reply, I will post when I get the job done.
(not sure when I will start it though :) )
 

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2005 E500S4
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349 Posts
When I did this on my 05 E500 wagon I was able to use the tools Noodles suggested and I was also able to fit my arm between the fender well and the engine to help thread in new plugs and get the old ones out. Took me a long time but I was able to do it successfully.
 

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98 E-320, 2003 E-500
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685 Posts
Kudos for two tools pics, I used them when I did mine and it helped a lot.

Still, the hardest part for me was popping the wires back onto the spark plugs using the 17mm wrench tool. You'll have to hear/feel the snap and make sure you can't just pull them out by hand. I had to use different pieces of wood for leverage against the sidewall in order to create enough forces.

It was a good workout, fighting with 16 plugs, 16 wires, 8 coilpacks.
 

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Super Moderator
99 ML430, 00 ML320, 05 E500 4matic Wagon
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22,144 Posts
It is a beast of a job.
I only had to use 4 band aids after the E500. 8 band aids after the ML430 :D
 
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