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 01-31-2018, 06:56 PM
Registered User
 
Join Date: Mar 2008
Location: cranford, nj
Posts: 141
W124 300D no power at climate switches

How's it going all, been a while. Car has been running fine, but an issue has come up I never dealt with before.
At first the heat would not come on till the motor warmed up. I didn't try the defroster, so I don't know if it was working. The blower would come on later and later, and now does not come on at all. The fuse is fine, so where would be the next place to look? Do these 124's have a thermostat that would control the power to the blower? Any ideas before I pull the dash apart? Thanks

__________________
1990 300D 2.5
1991 F350 7.3 Dually IDI

1997 F350 gasser dump
1980 H-D 93 inch Shovel
2000 SE Roadglide
Reply With Quote
  #2  
Old 01-31-2018, 10:44 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,793
There’s a yellow signal wire to the blower controller at a junction above the brake booster. Set the ACC to defrost and check voltage at the yellow wire. Check voltage at the bigger wires as well. One should be constant 12V the other is ground. The yellow wire sends 0-7V or something like that to the blower controller under the blower. It should register 7V or so on defrost.

Sixto
98 E320s sedan and wagon

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 11:36 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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