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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-12-2003, 07:18 PM
Registered User
 
Join Date: Jan 2003
Location: USA
Posts: 699
What is the maximum allowed current draw when engine is OFF?

Dear friends:

Does Mercedes specify a maximum current draw (engine OFF) for old diesel cars (W123, 126 etc...) which don't have a car alarm system installed? How many milliamperes do the radio (station memory function) and the clock use? On my W126 300SD.
it's about 350 mA or less when the engine is OFF.

However, I've read that newer cars (no alarm) usually consume only a maximum of 50 mA.

I think 350 mA current draw is a little bit too high and that's not good for a battery.

Thanks for your info.

Eric

Reply With Quote
  #2  
Old 08-12-2003, 08:03 PM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
That is too much. You have the right figures with the 50ma limit. An old diesel should have about nothing as there are no memories to maintain.
__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
Reply With Quote
  #3  
Old 08-12-2003, 08:06 PM
Registered User
 
Join Date: Sep 2002
Location: Kingsport, TN
Posts: 375
Hi Eric,

I don't know if there is a limit given by MB, but to check for a leak is easy. You connect your digital meter as you already have to read the current and then remove one fuse after another. The moment the current drops when you remove a fuse, you know which circuit to check.

Hope this helps.

Reinhard
Reply With Quote
  #4  
Old 08-12-2003, 09:28 PM
Gilly's Avatar
Registered User
 
Join Date: Mar 2001
Location: Evansville WI
Posts: 9,616
I'd bet on a light being on also, probably the trunk light, as this works with the key off. The glovebox lighgt could be another one, but I think the key needs to be on for that one to work.

Gilly

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 11:59 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