Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 04-02-2002, 11:01 AM
Registered User
Join Date: Jun 2000
Location: Plano, TX
Posts: 2,513
I've not replaced glow plugs on this car, but have scavenged this from another MB forum: The symptoms sound correct. The glow plug light should come back on if a plug is open circuit, but it could have shorted internally fooling the check system.

On the LH inner wing, behind the washer bottle there is the glow plug control unit. Unplug the connector that feeds the loom under the inlet manifold and check each terminal with respect to ground ( car body). Each plug will be about 0.8 ohm if I remember.

To change a plug you need the car on ramps, remove the under shields from engine and gearbox, remove one allen bolt holding the aluminium air pipe to the EGR valve body and the clamp bolt for the EGR pipe to valve body and remove the clamp. Remove all the torks bolts holding the inlet manifold to
head. Pull the vacuum pipe off the EGR valve and disconnect the manifold pressure sensor and remove from the inner wing. Lift the manifold with a twisting action as this will break the seal to the stainless steel re-usable gasket and the fragile EGR pipe.

Pull the connector from the glow plug and unscrew.

Refitting is the reversal.

There have also been previous discussions here, in which the following advice came to light: To remove the intake , you must remove the allen bolt going straight up next to the charge air tube. It requires a 5mm allen socket (ball allen if possible).From the top, remove the 10mm nut securing the washer tank and lift it out of your way.Look under the intake from the side just past the center of it and you will see the EGR tube (silver corugated tube,not as flexible as it looks) with a clamp holding it on. Completely remove the bolt in the clamp (a 1/4 drive 10mm swivel socket works great) and remove the clamp.Knock the tube away from the intake just a little,and it will lift right off.

Good luck.
Reply With Quote
Old 04-02-2002, 12:35 PM
Registered User
Join Date: Apr 2002
Posts: 37
I took the car to the dealer, Rallye Motors in Roslyn, NY. After a quick look at the light show on the instrument panel, they agreed that the problem is glow plug-related, and/or GP control unit. Soonest appointment: May 1. I'm thinking of tackling the job myself. If I do, I will definitly replace all six glow plugs, thanks moedip. Will follow detailed instructions c/o jcyuhn, thanks. Found nice diagram on ALLDATA. Should help.
Reply With Quote
Old 05-18-2002, 12:17 PM
Registered User
Join Date: Apr 2002
Posts: 37
Update: I took the car to the dealer where they replaced all 6 glow plugs. This solved the problem completely. Thanks to all who posted. Aside: The dealer is Rallye Motors in Roslyn, NY. I give them my highest recommendation. There is another dealer, closer to my home in St. James, NY. I will NOT ever take my car there and will discuss with those interested via private email.
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
1999 E300 Turbodiesel won't start all of a sudden. dtf Diesel Discussion 16 03-26-2004 07:23 PM
rough idle when cold start in the morning.... arif Tech Help 2 06-17-2003 05:11 PM
Rough idle after cold starting difficulty - related? Fintail Fan Tech Help 8 02-19-2003 10:38 AM
190e voltage regulator, cold start valve, EHA Machnumber2 Tech Help 1 08-29-2002 07:50 PM
1991 420SEL - beginning of a cold start problem DieselGuy Tech Help 1 07-30-2001 03:56 AM

All times are GMT -4. The time now is 02:11 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page