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

LinkBack Thread Tools Display Modes
Old 08-09-2002, 06:42 PM
Don Hicks
Posts: n/a
Blower Not Working

Blower Not Working
Car: 1989 300E

Blower not working at all.

I know the blower is good because I have had it out of the car and applied 12 volts to it. I replaced the blower regulator. What are some of the other things that might cause the blower not to work properly? How can I check the push button that control the AC and blower.
Reply With Quote
Old 08-10-2002, 12:02 AM
Gilly's Avatar
Registered User
Join Date: Mar 2001
Location: Evansville WI
Posts: 9,616
The main thing you need to check out the system at the push button panel is directions to do it, and prefferably a wiring diagram to go along with it. Familiarity with the system helps alot, too.

One possible easy fix is the fuse. There is a seperate fuse just for the blower. It's over on the drivers side shock tower, in front of the main fuse box. I usually describe it as looking like a small black plastic coffin. The lid of this little coffin shaped box flips open, there is a metal strip fuse under there that can blow.
The little box is held down by 2 phillips screws, and has a fairly substantial wire going in to each side of it, should be easy to find

Reply With Quote
Old 08-14-2002, 01:46 PM
Join Date: May 2002
Location: Columbus, OH
Posts: 44

Problem is probably the strip fuse. Assuming that hasn't fixed it, you can check the control voltages coming off of the pushbuttons. You said you have replaced the regulator, so you know where the connector is under the windshield, on the driver's side behind the power steering. Black is ground and red should be battery voltage. The yellow wire is the control voltage. With low button pushed in, you should have 1DCV. High should be 12 DCV and auto should range in between. I've read that the pushbuttons cannot be repaired or replaced and that you will need to buy the entire assembly for about $200. Some posters have supposedly had success cleaning up solder bridges they found on the the main circuit board. The pushbuttons are on a smaller board you might also check if you are not getting the control voltages.
Jim Wiggin
Columbus, OH
1989 300E
Reply With Quote
Old 08-14-2002, 01:48 PM
it leaks, its german
Join Date: Mar 2002
Location: raleigh nc
Posts: 1,111
While your checking the fuse, make sure you have key on power to the fuse, if not, odds are the ign switch went feet up.

Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 05:15 PM.

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