1989 300SE Clutch not engaging on compressor - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 02-07-2013, 05:28 PM Thread Starter
BenzWorld Newbie
Date registered: Jan 2013
Posts: 2
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
1989 300SE Clutch not engaging on compressor

Hi all, this is my first post. So apoligies if i have posted it in the wrong area. Iíve only just bought my first a 1989 300SE Mercedes. I just recently joined the Mercedes car club Victoria, Australia and looking forward to taking her out on some club runs once I have fixed a few little issues. Everything on the car works well except for the air con. I checked last night and can confirm that when I turn the A/C ON, the compressor clutch is not activating. The question I have is, if the car is low on A/C gas which Iím nearly 100% sure it is, does this prevent the compressor from switching ON via a small sensor? Everything else works well; fan, heater etc all good and it will blow normal cold air from outside no problems. I can also confirm that the car has been switched over to run the current gas and does not run on the old type.
Aaronwl is offline  
Sponsored Links
post #2 of 2 (permalink) Old 02-07-2013, 06:44 PM
Date registered: Jul 2005
Vehicle: 90 300E, 99 ML430, 00 ML320, 05 E500 4matic Wagon
Location: WI
Posts: 18,817
Mentioned: 18 Post(s)
Quoted: 877 Post(s)
Lifetime Premium Member
Yes being low on refrigerant will send a signal to shut down the engagement of the compressor. A good Air Con shop can charge it up with gas and a UV dye to make sure there are no leaks. If it leaks obviously you will need to fix the leaking part(s).

Welcome to Benzworld!
Noodles is offline  
Sponsored Links

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

Quick Reply

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


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

Email Address:


  • 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

    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

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