Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

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

LinkBack Thread Tools Display Modes
Old 08-17-2003, 04:43 PM
Registered User
Join Date: Aug 2003
Posts: 1
Question Electrical Problem 240D

I've got a 1979 240D that I"m having some electrical problems with. It drove fine up until one day i went to start it and it just clicked over and over. I figured dead battery charged it overnight and same result. I tested the battery and it was still fully charged. To finally get it started I had to put the charger on start and hook up jumper cables and it finally cranked up. I drove it around and it was fine except the lights flickered a little when i turned on teh radio. After i shut it off it would'nt crank again not even click. I was thinking maybe it was the starter selonoid or voltage regulator do these sound like solutions? thanks
Reply With Quote
Old 08-17-2003, 08:40 PM
Registered Diesel Burner
Join Date: Aug 2001
Location: Northern Virginia
Posts: 2,911
It may take a little more effort to narrow the problem down, but the very first thing you need to start off with if you're convinced the battery is good - is the battery connections.

It sounds like they are dirty and not making a good connection to the battery posts. The supporting evidence is your being able to start the car with jumpers, which grab onto the battery cables directly.

Whether it is ultimately the cause or not, you should take the battery cables off and clean the battery posts and the inside surfaces of the cable terminals until they are shiney. Then reassemble and coat with something to prevent corrosion. I happen to like regular grease, thinly spread.

If this doesn't help, then the next place to check for corrosion is where the ground cable hooks to the chassis - clean that too.

1982 300D at 351K miles
1984 300SD at 217K miles
1987 300D at 370K miles
Reply With Quote
Old 08-18-2003, 02:06 PM
MrCjames's Avatar
California Dreaming
Join Date: Jun 2003
Location: SF Bay Area
Posts: 599
Electrical Problem

Providing the battery light is functioning normally the next time you start the vehicle try checking the charging system output. If the voltage is not over twelve volts at idle I would begin by disconnecting the "Glow Plug Relay" and see if the voltage increases.

If it is sticking it will cause all the output from the alternator to be consumed through the glow pugs.

My .02
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 08:40 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page