1975 300D Glow plug - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 11-22-2008, 12:05 PM Thread Starter
BenzWorld Newbie
Date registered: Mar 2007
Vehicle: 1976 300D, 2002 E320 Wagon
Location: SoCal
Posts: 2
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
1975 300D Glow plug

The glow plug indicator on the dash does not light up. The battery checks out fine and the ground connection is good. All of the fuses look good and the connections on the glow plugs are tight. Is there a way to isolate a bad glow plug or do I have to remove all of them for testing?
ehytrek is offline  
Sponsored Links
post #2 of 2 (permalink) Old 11-23-2008, 09:47 PM
BenzWorld Junior Member
Date registered: Jun 2008
Posts: 30
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
The glow plugs in those years are wired in series. 1 bad plug will cause the whole system to not work. You could use a volt meter and make sure the resistance between where the power goes to the first glow plug and the ground strap is low. It should not be more that a few ohms. Pull the plugs and check the resistance out individually if total resistance was high.
bagawk is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Topic Author Forum Replies Last Post
Glow plug indicator (and more) -- 1987 300D KrisH General Mercedes-Benz 5 02-23-2011 09:34 AM
85 300d glow plug please help roempty General Mercedes-Benz 1 11-23-2004 10:29 AM
Glow Plug/Light Question '81 300D Joey W123 E,CE,D,CD,TD,TE Class 2 10-09-2004 01:32 PM
Any One Have A Glow Plug Relay For Sale?? 83 300d panamacolin W123 E,CE,D,CD,TD,TE Class 0 08-23-2004 09:00 PM
300D glow plug indicator freaking out Guest (MBNZ) W124 E,CE,D,TD Class 1 11-13-2001 11:28 AM

Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Title goes here

video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome