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-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

LinkBack Thread Tools Display Modes
Old 11-14-2004, 10:46 AM
Registered User
Join Date: Mar 2001
Location: St. Louis, MO.
Posts: 46
Rough Running Diesel

Hello, I have a 1993 M-B 300D 2.5 Turbo with the following problem. It starts right up when cold but then runs extreamly rough and may die until it warms up. Smokes badly during the early warm up and then runs normal. I have been told by an authorized M-B tech. that the probabal cause is badly worn pre-combustion chambers. Has anyone done this procedure without removing the Cyl. head and where can the tools necessary be bought or rented?

Thanks, Lgriffi

Reply With Quote
Old 11-14-2004, 06:20 PM
Posts: n/a
Use the search to search the diesel forum.
Reply With Quote
Old 11-14-2004, 06:24 PM
Registered User
Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,186
I am a little new to MB's, however I have dealt with diesels for several years, it sounds more like a glow plug problem to me.

How long are you letting them cycle? Have you checked the resistance of the glow plugs? Hopefully, one of the pros a little more familiar with your model will chime in on this one.

84 300SD 350K+ miles ( Blue Belle )
Reply With Quote
Old 11-14-2004, 06:45 PM
Registered User
Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
I'd replace the glow plugs before going after the pre-chambers myself. They can still have more or less correct resistance and not work properly.


1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!
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

All times are GMT -4. The time now is 11:31 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2023, 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