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

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-14-2008, 06:43 PM
RLGDiesel's Avatar
Registered User
 
Join Date: May 2006
Posts: 218
1987 190D - Battery Drain Issues

A friend's 190D was serviced and driven home. Every other morning, the vehicle lost charge and had to be jumped started or charged manually. Are there any common charging/drain problems to look for first?

__________________
1982 300D-T (sold)
1988 300E (sold)
1994 E320 Wagon (sold)
1995 E320
1998 E300D-T
1999 E3204M Wagon
2001 E320
2005 E320 CDI
Reply With Quote
  #2  
Old 08-14-2008, 07:03 PM
Registered User
 
Join Date: Jun 2007
Location: N Ca
Posts: 143
Wink

I would say firts remove and have the battery tested,then if not battery test the alternator,2 very good places to start and common problems.
Good luck to you.
It also helps to make sure you have the right battery and alternator installed,a lot of times with these cars you find modifications and other butcher type creative ideas installed in them,like i just bought a car that had the alternator bracket installed wrong and wrong alternator belt size kept drainning my battery,but i believe the 190 d has a single serpentine belt so it doesnt apply but just as an example.
Reply With Quote
  #3  
Old 08-14-2008, 08:42 PM
RLGDiesel's Avatar
Registered User
 
Join Date: May 2006
Posts: 218
Vehicle has been owned by the same owner since 1988...no mods. I also asked him about possible incompatible components.

Battery and alternator have been tested (both good). I was thinking it might be something electronic (i.e. the power seat module draining the battery on my former 1997 E420).
__________________
1982 300D-T (sold)
1988 300E (sold)
1994 E320 Wagon (sold)
1995 E320
1998 E300D-T
1999 E3204M Wagon
2001 E320
2005 E320 CDI
Reply With Quote
  #4  
Old 08-14-2008, 08:46 PM
Registered User
 
Join Date: Jun 2007
Posts: 183
I in no way know if your model has it or if the symptoms are the same, but I have read about the voltage regulator acting a fool. I also hear the the power antenna can be a drain.
__________________
1981 300D 205,000 mi.
Reply With Quote
  #5  
Old 08-14-2008, 08:53 PM
RLGDiesel's Avatar
Registered User
 
Join Date: May 2006
Posts: 218
Thanks...have you read about the glowplug relay also being a source of drain??
__________________
1982 300D-T (sold)
1988 300E (sold)
1994 E320 Wagon (sold)
1995 E320
1998 E300D-T
1999 E3204M Wagon
2001 E320
2005 E320 CDI
Reply With Quote
  #6  
Old 08-14-2008, 09:32 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by RLGDiesel View Post
Thanks...have you read about the glowplug relay also being a source of drain??
The glow plug relay is not your issue.

To find the drain proceed as follows:

Disconnect the negative battery cable and put an ammeter in series between the cable end and the battery negative post.

The reading should be about 50-60 ma. But, it will be higher than this level.

Then, start pulling fuses until you find the one fuse where the reading drops down below 50-60 ma. That's the culprit circuit. Now comes the more difficult part of finding which device on that circuit is leaking current to ground.

The confirmation of a leak above 100mA is the first step in the process.
Reply With Quote
  #7  
Old 08-15-2008, 02:37 AM
shingleback's Avatar
Registered User
 
Join Date: Jul 2006
Location: Vancouver, BC Canada
Posts: 265
Pay close attention to what was done when the car was serviced. If they did some electrical work, you might want to start looking there.

Look at the second post at this link; the owner had extensive service done to this car at a dealership: http://www.benzworld.org/forums/w201-190e-d-class/1360947-restoring-8-000-mile-2-3-a-56.html

__________________

'98 E300 DT
'87 190D 2.5 turbo RIP
'92 S500 Sold
'03 3.2TL-S A-Spec
Reply With Quote
Reply

Bookmarks

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 03:45 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page