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 08-10-2012, 10:29 AM
Registered User
 
Join Date: Aug 2012
Posts: 2
1996 W140 Merc S280 Aircon Blower problem

The aircon is working OK but the blower fan increase speed for the first 4 bars on the climate control unit ,thereafter the remaining bars appear on the display but the blower remains at half speed. Any suggestions as I am getting very conflicting diognosis' from the 'auto electricians' here in Cyprus

Reply With Quote
  #2  
Old 08-10-2012, 10:55 AM
Senior Member
 
Join Date: Nov 2002
Posts: 803
it's probably the blower resistor. pull the cabin filter out to get to the blower. there's 3 wires, red, blue and a smaller gauge yellow. put a meter on that wire and run the blower speed up and down from the dash. the voltage on the yellow should change. if it goes up when blower is on high, and down on low, then you need the resistor. this assumes all 140s are the same, that's how we check it in the u.s. good luck, chuck.
Reply With Quote
  #3  
Old 08-12-2012, 04:28 AM
Registered User
 
Join Date: Aug 2012
Posts: 2
Thanks your reply. This is now yet another possibility which I'll try but do you think the resistor being faulty is more likely than a faulty regulator ?
Reply With Quote
  #4  
Old 08-12-2012, 07:36 AM
Pili380SL's Avatar
Parts Geek
 
Join Date: Jan 2004
Location: Springfield, MO
Posts: 238
I believe they are one and the same. Mercedes calls it a regulator and it controls motor speed through variable resistance.
__________________
1983 380SL
1995 C280
1995 S500 coupe
1990 Mazda Miata
2004 Suzuki Hayabusa
Reply With Quote
  #5  
Old 08-13-2012, 08:04 AM
Senior Member
 
Join Date: Nov 2002
Posts: 803
resistor/regulator is what i was talking about. good luck, chuck.

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 06:26 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, 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