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 06-23-2003, 09:48 PM
Registered User
 
Join Date: Mar 2002
Location: Louisville, KY
Posts: 195
Electric fans not blowing

Have a '92 300D with the 2.5 Turbo diesel. When my compressor is engaged the two auxillary fans don't work. They will come on when the temp gets up to 90C. The belt-driven fan is engaged when the engine temp. is 80 or higher. Question#1--do the auxillary fans turn when the compressor clutch is energized? Question#2--Where is the relay for the fans on this car? I don't have a manual for this car but I worked alot on the same system on my previous 190D. TIA. Ernie in Louisville

Reply With Quote
  #2  
Old 06-24-2003, 02:00 AM
Registered User
 
Join Date: Feb 2002
Location: Belgium,Europ
Posts: 196
Dear epssax

The aux fan or fans don't have anything to see with the engine temp nor
the compressor clutch. They are controlled by the temperature of the cooling
gas in the airco.
They will be started as the temp comes to high for proper airco working.
In my car after a short stop with a warmed up engine, I can here my fan blowing ( it's rather noicy ! ) right after starting again ( only with airco on and
in warm weather ).
I hope this will help you to understand the system.

Danny
Reply With Quote
  #3  
Old 06-24-2003, 07:48 AM
LarryBible
Guest
 
Posts: n/a
95 Y300DTA's explanation is correct except, technically, they are not turned on by refrigerant temperature, but by refrigerant pressure on the high side. This is to bring down the high side pressure to prevent excessive pressure which can cause damage to the a/c system.

Have a great day,

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 11:24 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, 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