W109 300SEl 4.5 Air Suspension Air Compressor Question - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 02-02-2016, 12:47 PM Thread Starter
BenzWorld Newbie
Date registered: Jan 2009
Vehicle: 72 300sel, 61 190sl, 69 280SL
Location: US
Posts: 1
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
W109 300SEl 4.5 Air Suspension Air Compressor Question

The belt on my Air suspension compressor pulley appears loose and is not fully turning the compressor and most importantly there is this loud squeeking noise coming from the pulley. It seems the pulley will turn a 180 degree turn, stop, squeey noise and turn 180 degrees stop squeeky noise. It only stops when I rev the engine, but it's the same cyle at idle turn stop squeeeeek turn stop ... at idle.

Is the belt adjustable? or can anyone give me advise? What does it take to replace the belt? Thanks, Ben
Fiams is offline  
Sponsored Links
post #2 of 2 (permalink) Old 02-02-2016, 08:17 PM
BenzWorld Junior Member
Date registered: May 2015
Vehicle: 1972 300SEL 4.5
Location: Newark, DE
Posts: 15
Mentioned: 0 Post(s)
Quoted: 3 Post(s)
The compressor slides on a bracket that is under the compressor, there are 4 bolts that hold it on, takes 2 people, one above and one below, easier to remove the alternator as well. My old belt was stretched so I replaced it with a new one, had to remove all the other belts to get to the compressor belt. Try tighting first, much nicer when the belt doesn't squeak.
The S is offline  
Sponsored Links

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