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 01-21-2002, 09:10 AM
Andrew Fekete
Guest
 
Posts: n/a
Rear leveling suspension

We're going over the car with a fine tooth comb and at Saturday's diesel meet George C and I did a suspension check and with John looking on. We saw the rear of my beloved wagon continue to stay down. Now, I will replace what needs to replaced to get this function to operate properly but I don't want to replace the whole setup at once.

My question:

How, if it can be done, do I check each individual component?

thanks in advance,
Andrew
Reply With Quote
  #2  
Old 01-21-2002, 05:43 PM
Aaron's Avatar
Moderator
 
Join Date: Aug 1999
Location: Cincinnati, Ohio
Posts: 1,935
Andrew,

Before you start replacing components, make sure the levelling valve is adjusted correctly. You might just need to take in some length of the linkage to compensate for the low height. Those hydraulic pumps don't fail often, but if it is for sure dead, figure about $550 for a new one. Have you looked at the struts for any leaks? If you don't see any externally, they may be leaking internally. With any of these hydrauli suspensions, you always open up a can of worms when you begin working on them.
__________________
Regards,
Aaron
Reply With Quote
  #3  
Old 01-21-2002, 05:54 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
That is what I thought also.. is there some way to throw away that can of worms and install something straight forward ? I would not have to have self leveling... just easy to maintain and reasonable cost... any suggestions... surely someone has figured out something in this line... so I don't have to .... Greg
Reply With Quote
  #4  
Old 01-21-2002, 06:01 PM
Aaron's Avatar
Moderator
 
Join Date: Aug 1999
Location: Cincinnati, Ohio
Posts: 1,935
I guess you could potentially convert the rear end to coil springs and shocks, like a W123 sedan. Of course the cost and effort might not be justifiable. It could be cheaper to just repair the leveling.

IMHO, the self-leveling is a very nice feature on the wagons (and some of the S-Class cars). I wish our 380SE had it because when we pack four people in it and go on long trips, that rear end sure sags! My 6.9 has hydraulics all-round with leveling at the rear end, but that car is not cost-effective to drive on long trips. You wind up throwing most of your vacation money down the throttle body!

Anyhow, if I were you, I would look into repairing the hydraulics before conversion. Remember too, that conversion may make your car less valuable to a potential buyer later on down the line.
__________________
Regards,
Aaron
Reply With Quote
  #5  
Old 01-21-2002, 07:47 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
Aaron, look at what you said above...when the pump goes out... big bucks... these cars already have coil springs.... one combo might be those adjustable air shocks which are controlled by electrical switch by the driver....
Reply With Quote
  #6  
Old 01-22-2002, 10:05 AM
George-c
Guest
 
Posts: n/a
Andrew,

Start off by putting the rear up on ramps and while motor is running (trans in park/brake on/ wheel chocks), crawl under and check the linkage to the controller by moving it up and down. I popped the likage off and just operated the lever off the controller to really see how it worked.

Your car sits & ride is fine, so I doubt that there are any leaks, my guess is that it is the linkage.

My first wagon sat for almost two years before I bought it, like yours, mine also didn't budge when weight was loaded in the rear. Thats when I fiddled with the linkage & silicone sprayed every moving part that was involved. That cured it.

I only wished that I would've remembered to bring my ramps on Saturday...

~George~
Reply With Quote
  #7  
Old 01-22-2002, 10:11 AM
Andrew Fekete
Guest
 
Posts: n/a
Auto leveling suspension

George, Aaron

Thanks for the plan of attack. George, I remember you mentioning the linkage on Saturday. I will go out and get some ramps and take a look at what is going on down there. Hopefully just something stuck or out of whack. I'll keep you posted.

thanks again,
Andrew
Reply With Quote
  #8  
Old 01-22-2002, 10:34 AM
jcd jcd is offline
village idiot
 
Join Date: Jun 2001
Location: Northern New Jersey
Posts: 1,102
Ramps?

I wish that you had brought the ramps as well. Both for Andrew's benefit and the sheer humor associated with having a "diesel meet photo" of 8 to 10 legs sticking out from under the car, while we all crawl under together to look, diagnose and argue.

My wife pointed out that the pictures of us wandering around the parking lot, hoods up, engines running, gawking at engine components painted a grim picture. The under the car shot would have put her over the edge and probably landed me in a rehab center.

I told her, just smile and smell the smoke.

Good luck

JCD
Reply With Quote
  #9  
Old 01-23-2002, 07:43 AM
LarryBible
Guest
 
Posts: n/a
There is a lever on the rear sway bar with pinch bolts holding it in place. This lever operates the linkage to the valve that Aaron was talking about. Loosen the pinch bolts, move the lever to the position that gives you the desired ride height while on level ground, then retighten the pinch bolts. I'll bet this cures the problem.

Good luck,
Reply With Quote
  #10  
Old 01-23-2002, 11:44 AM
Andrew Fekete
Guest
 
Posts: n/a
Auto leveling suspension

I purchased ramps last night and hopefull will be making the adjustment this weekend. I will let you know how it turns out.

thanks for all the info.
Andrew
Reply With Quote
  #11  
Old 01-23-2002, 11:50 AM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
Andrew, If they are the 'pressed steel ' ramps be sure and check to see that they are appropriate for keeping you safe under the car... or in the alternative, would you leave me your 300td? Greg
Reply With Quote
  #12  
Old 01-23-2002, 12:04 PM
Andrew Fekete
Guest
 
Posts: n/a
In the event of my early demise...

The ramps seem to be extremely well built. I tend not to cheap out on tools, supplies, and etc.

Hopefully the ramps will hold with no problems. But in the event of a total break down my wife would be happy to get rid of the car quickly.... I've instructed her to only sell for "top dollar". She proceeded to say that a gift to charity would be a better write off than selling it.....

She loves to rib me...

I'm in the phone book if you find my name in the obituaries.

later,
Andrew
Reply With Quote
  #13  
Old 01-23-2002, 12:12 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
Boards like these should have obits themselves... it would be a long time before most of us would hear of your demise... some stranger down the street would have already picked over your goodies...
Do check to see if they say " ok for people to be underneath car while on the jacks' or something to that effect... they may say NOT for use with someone under the car.. those can squash you with no prior notice a failure is about to occur...Greg
Reply With Quote
  #14  
Old 01-26-2002, 01:52 PM
Andrew Fekete
Guest
 
Posts: n/a
Rear Suspension Adjustment

Well, I put the hot rod up on the ramps and found that linkage connected to what I can only guess is the switch/pump for the rear suspension. I removed the linkage after spraying it heavily with WD40. I moved the arm on the pump up to see what happens and the rear suspension rose to the occasion. Ain't it cool..... Anywho, I found the adjustment on the controller arm and tightened up really well. The car now sits just above level and pumps up when I plant my ass on the rear bumper. Ye Ha!!!!

After that I fidled with the throttle linkage and the alda. Now the car gets up and goes! :

I even got to break mad: a vacuum line which I found out controlled the ignition shutoff switch (Fixed with super glue and a nice new flexible hose). I also took the time to replace the fuel filters.

It is truly amazing how much you can learn about these things after you break them!

thanks again for everyones help. This forum has been worth its weight in gold!!

Andrew
Reply With Quote
  #15  
Old 01-26-2002, 02:02 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,277
It is nice when things 'pump up' properly and 'rise to the occasion'... I hope my 81 wagon does the same thing soon.
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
300TD REAR suspension rebuild dmorrison Diesel Discussion 18 11-22-2013 11:04 AM
126 rear suspension - done! gidpor Tech Help 8 01-21-2005 10:54 AM
140 Rear Suspension Problem mr. Goodwrench Tech Help 3 05-26-2003 11:43 AM
560SEL rear suspension dnthomas Tech Help 15 11-26-2002 05:05 AM
190 16 valve load leveling rear? 16 valve owner Tech Help 5 03-04-2000 03:12 PM



All times are GMT -4. The time now is 12:04 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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