i'm gonna get the three end plugs and 6 new spark plugs just for good measure and then see if that solves the issue.

You DO NOT want the end plugs. These are incorrect part. They are the plugs on the end of the wires that go from the coil and feed the other plugs.. these are not the ones under the coils and are not the ones that cause the problem.
http://catalog.worldpac.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=21Q1AKMTB21U0QIXGA&year=1995&make=MB&model=E-320-004&category=F&part=Ignition+Wire+End+Plug

The parts you do want are the coil to plug connectors [ 3 of them]. No wires , no ends ..just a direct connector/resistor. PLUG to COIL. Nothing else.
This is the CORRECT part.

http://catalog.worldpac.com/mercedesshop/sophio/quote.jsp?clientid=catalog.mercedesshop&cookieid=21H0MN3YU22W14AGMI&baseurl=http://catalog.peachparts.com/&partner=mercedesshop&year=1995&product=F1010-84561&application=000357359

Dang. I wish I had read your post earlier. I was Just about to post the question, "Where do these things go?!" I suppose I have to return them and get the correct part.

Yeah, Sorry, but I posted it as soon as I saw that post link you to the incorrect parts.. I was actually surprised..

Get the correct coil/plug connectors b/c the ones you got will do nothing to solve your problem.

THESE are the ones you want...3 of them... and they are UNDER each coil. Better Luck this time......

http://catalog.worldpac.com/mercedesshop/sophio/quote.jsp?clientid=catalog.mercedesshop&cookieid=21H0MN3YU22W14AGMI&baseurl=http://catalog.peachparts.com/&partner=mercedesshop&year=1995&product=F1010-84561&application=000357359

I like how someone mentioned the spark plug boots being soaked with oil ,and they replaced the valve cover gasket.

Good point!

I see tons of those circular o-rings that seal the valve cover gasket to the head, and they leak into the spark plug holes causing misfires from time to time.

I like to get a rag and hold it over the spark plug hole and blow compressed air into the holes (before) removing the spark plugs.
This will blow out any oil or crust and dust that has collected around the spark plug.
That way when you pull the plug, you will not dump a bunch of junk into the cyllinder.

Has anyone tried to drill a few holes in the lid to release the heat? Or would just a few holes make some harm to the system, I mean you can cover them when cleaning the engine?

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-98 G 500, Obsidian Black
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Te heat is trapped by the coil being over the plug , not the valve cover top.

Urgent!!!

Hi All,
I'm in need of serious help. A co-worker asked me to do an oil change and spark plug change on her 94 E320 Wagon. Replaced the plugs with Bosch Super Copper, car immediately started and ran great. Upop delivery the car started to misfire, but went away after a series of high revs. A day and 70 miles later the car began to misfire bad, they drove the car back 70 miles with the misfire and the car shaking. They brought the car back and I changed the plugs again hoping that was the fix, put everything back and the end result was the car did not want to start, just cranked. I checked the relay (w/ 15 amp fuse) behind the battery and next to the ECU, fuse was ok. Removed the pos+ overnight hoping to reset and fix the problem. No luck...
I removed spark plugs # 1,3, 6 and cranked the motor, only saw #3 plug sparked.
So, I bought 2 coils and replaced coil 1 and 3, hoping that would fix the problem I tried starting the car, no change. I began rechecking the plug wires and the harness compression plug everything was snug. I cranked it again, it started and still a misfire on WOT (wide open throttle), but would die if the pedal was not depressed. Had a friend cranked the car while I began pushing on the harness wires built into some type of plastic gasket that sealed top of the motor, with several movements I noticed the car would react to moving the wires (harness).

I'm not sure what I have here, only thing I did was change the spark plugs and now this.

Any help would be appreciated

GP
6612646891

Thank you all...

If your friend's 94 wagon has the original engine wiring harness, then disturbing it to change the plugs would have shattered the insulation. Do a search - lots of info on this site regarding this problem and how to check the condition of the insulation.

Hey guys, sorry to jump in. Anybody know of a site which sells the NON-Resistor type plugs? I cannot find them anywhere and one site I bought it off, which said non-resistor -- I was sent resistor types

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well said arthur.

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European Performance
Dallas, TX
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"Fortune favors the prepared mind"
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