300SEL suspention question - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 06-27-2012, 08:43 AM Thread Starter
BenzWorld Junior Member
 
Date registered: Jan 2006
Vehicle: 1996 W210 E320 ELEGANCE, 1972 W108 280SE 3.5, 1969 W108 280S, 1971 300SEL 3.5
Location: Melbourne, Australia
Posts: 49
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
300SEL suspention question

Hi all,

Last Friday I inanvertantly accidently on purpose rescued/bought a 300SEL 3.5.

Anyway since this is the first air suspention car I've ever owned (I also own a 280S and a 280SE 3.5), I have a couple of questions on the operation of the system. I spent last night reading all the posts in the forum regarding the suspention on these cars.

The car was purchased in Albury and after waking her up from a 8 year slumber on Monday, I promtly drove her back to Melbourne (with back up) a total distance of 318klm or 197 miles.

Other than the near new looking tyres all having flat spots from sitting around causing the car to vibrate I felt the suspention to be very wollowy, even at 60mph that I was travelling at for the duration.

With the car safely back at home I was going through the various dials and knobs till I got to the height control knob at the kick panel, I pulled it all the way out (I felt the indents) and I waited for the car to raise up to it's highest point with the engine running, and nothing happened, I checked all the positions and there was no change, the front drops down over two days, not the rear and when the car is started the front comes up, there is no change in the rear height.

I am slowly going through the car, but any ideas and help would be great to get me started on the right path.

Cheers

Peter
GANSTA is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 07-02-2012, 02:49 AM
BenzWorld Junior Member
 
67 300's Avatar
 
Date registered: Oct 2008
Vehicle: 73 450 SE Euro
Location: West Covina, Ca
Posts: 15
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
I had a 300 and recall having same problem could be a rubber air hose leak (you have 3 on Driverside) or air lines up to front airbags they have a sealing o ring inside fitting. Check with a water spray bottle add liqiud soap and spray liberally should bubble up around air leak. Also can leak around main unit that has cable control valve. Got a factory repair manual with all proceedures but its for ealy models but dont think thres any diffrence other than hoses etc.
67 300 is offline  
post #3 of 4 (permalink) Old 07-03-2012, 09:10 AM
BenzWorld Elite
 
wbain's Avatar
 
Date registered: Dec 2003
Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
Location: Near Manassas Va.
Posts: 1,830
Mentioned: 0 Post(s)
Quoted: 3 Post(s)
Greetings and welcome the the air suspensioned world. I would suggest you visit The International M-100 Group which caters to the 300SEL 6.3, 6.9 and 600 M100 powered cars MB made.

There are quite a few 300SEL 6.3 owners in Australia who are quite expert at fixing them. Your car and theirs are the same, except for the engine, and you can get a lot of good info there. There are many threads about the air suspension, the leveling valves, the compressor, air tank, the distribution valve etc etc etc.

There are also articles with many pictures on air suspension overhaul.

I'm not trying to kick you off this site, but the M100 site hase much more expertise on this complex and reliable system.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

http://www.megamanual.com/index.html
http://www.bgsoflex.com/megasquirt.html
wbain is offline  
post #4 of 4 (permalink) Old 07-03-2012, 03:22 PM
BenzWorld Senior Member
 
drew56cus's Avatar
 
Date registered: Oct 2006
Vehicle: 1965 220SE sedan (finnie) with 450SE conversion, 1964 220SE coupe project, 1966 300SE coupe
Location: Brisbane Australia
Posts: 418
Mentioned: 1 Post(s)
Quoted: 32 Post(s)
Hey Peter,
Talk to Ron Bunting (briskiwi@bigpond.com.au) in Brisbane
and Chris Stewart (bikesncars@optusnet.com.au) in Melbourne. These guys know who to send what to, to get them right. Ron will help me with my W111 coupe that I have bought 6.3 parts for, plus my W112 coupe.

I am going to go with aftermarket larger nylon air lines and valves, but Ron reckons the factory stuff is fine if you don't want to dump it and raise it a lot. My understanding is that the system is expensive to get right, but if done properly, you can rely on it for quite a long time.
If you join Ozbenz, 'treedoc' on there did exactly the same thing as what you are about to last year, so he would also be a good resource to chat with.
Cheers,
Drew
drew56cus is online now  
Sponsored Links
Advertisement
 
Reply

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



    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