Just wondering if anyone that has disabled the egr (and maybe also the CCV ) in their OM606’s changed their glow plugs yet? It’ll be interesting to see if these problems with removing the plugs go away…

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1995 E300 Diesel
2002 GMC Duramax CC LB 4X4

I cleaned my intake plumbing and blocked off the EGR valve at both ends in February 2008. At the same time (and this was the reason to pull it all apart) I replaced the #2 glow plug. I soaked the threads with PB-Blaster overnight before beginning but still had to work it back and forth a few times with a socket wrench. It came out without damage and there was not much carbon on the tip or anywhere else. I did not ream the threads (not having the proper tool) but did put some anti-seize on the new glow plug before installing it.

In July 2008 I replaced the #3 glow plug. This required pulling only the crossover pipe which, I was happy to see, was quite clean except for a film of oil from the turbo. The "outgoing" glow plug came out easily and was also fairly clean, perhaps a bit cleaner than #2 had been. Both old glow plugs are cleaned up and sitting next to my monitor as I type this.

The other four glow plugs have not been changed under my administration so their status is unknown (except that they are still good). Owner #2 (I am #4) replaced all six glow plugs in January 2005; that is the most recent GP service other than mine for which I can find documentation.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

OK, I'm assuming you mean the O-ring between the SOV and the IP...? That one in particular I was suspicious of because it doesn't really have a groove for the O-ring.

Yep, I replaced every one except for the delivery valves.

I did however, coat every O-ring with diesel fuel prior to installing it in hopes that they would seat properly. Oh well, back off with the manifold. I'm getting good at it now...

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Evan - Correct.

Take a good look with a mirror and light first. Might be able to reach the culprit w/o pulling the IM. On my turbo, I can do all of them by moving the windsheild washer bottle out of the way. I find it easiest to pull the SOV and every line attached to it as a unit and re-install the same way.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Ditto.

I've had mine apart a couple times now, and find I have great access if I remove the washer fluid bottle and Diesel filter housing.

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Jake
1999 e300d PlantDrive WVO/SVO conversion
**note to self: oil changed at 268k kms**
1990 Toyota 4Runner FrankenDiesel swap