Fan - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 11-08-2008, 02:05 AM Thread Starter
BenzWorld Member
 
jboymagno's Avatar
 
Date registered: Sep 2008
Vehicle: 2000 e240 facelift
Location: Philippines
Posts: 301
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Fan

Is it normal that the engine fan rotates slowly while the engine is still cold? Then rotates faster when the engine gets hotter. Is there a sensor thing involve here?

Compared to Japanese cars the situation is different.
jboymagno is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 11-08-2008, 06:32 AM
BenzWorld Elite
 
Diesel Benz's Avatar
 
Date registered: Dec 2005
Vehicle: 222.132 & 221.122 & 212.025 & 906.633
Location: Europe
Posts: 10,322
Mentioned: 3 Post(s)
Quoted: 34 Post(s)
Quote:
Originally Posted by jboymagno View Post
Is it normal that the engine fan rotates slowly while the engine is still cold? Then rotates faster when the engine gets hotter. Is there a sensor thing involve here?

Compared to Japanese cars the situation is different.
Thank God that isn't the only difference between MB and (some) Japanese cars.

You are probably referring an electric fan to a belt driven fan with a visco clutch.
Diesel Benz is offline  
post #3 of 3 (permalink) Old 11-08-2008, 07:02 AM
BenzWorld Member
 
pmark3100's Avatar
 
Date registered: Sep 2008
Vehicle: 1982 M-B 380SL, 1998 Ford Taurus, 2001 Dodge Ram 2500, Kawasaki ZG1000 Concours
Location: S.W. Indiana
Posts: 364
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by jboymagno View Post
Is it normal that the engine fan rotates slowly while the engine is still cold? Then rotates faster when the engine gets hotter. Is there a sensor thing involve here?

Compared to Japanese cars the situation is different.

It's a fluid clutch function. When the engine os cold or you're going down the road and a lot of air is blowing across it, the clutch in the fan disengages to release more power from the engine to moving the car. As the temperature goes up, the clutch tightens and pulls air in. This technology goes back a good 40 years or so. If you're ever next to an over the road truck at a light, you can sometimes hear the fan kick in with a roar. It sounds like an aircraft taking off.
pmark3100 is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
     
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode



    Similar Threads
    Topic Author Forum Replies Last Post
    Head gasket leveled, New Radiator, new Thermostat, New fan clutch, both Auxiliary fan Workersvillage W124 E,CE,D,TD Class 11 08-10-2008 11:32 PM
    engine fan or radiator fan fuse and relays ?? DnBtekhnic W203 C-Class 0 04-21-2008 09:40 AM
    Aux fan run when Engine fan runs? Is it possible? Haroundb W123 E,CE,D,CD,TD,TE Class 48 07-22-2007 09:17 AM
    Replacing clutch fan for thermo fan... baskarz W126 S,SE,SEC,SEL,SD,SDL Class 0 04-10-2007 10:02 PM
    126 HVAC Fan not working / Heater Fan Removal cam69ss W126 S,SE,SEC,SEL,SD,SDL Class 1 01-25-2005 11:31 AM

    Posting Rules  
    You may post new threads
    You may 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 Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On

     

    Title goes here

    close
    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome