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#1
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Self Leveling System fine -then suddenly too high..
Hi there,
I have read a lot about the SLS system on this forum and at other sites. I have a quite good understanding of the functionality etc. I just installed a new connection rod on my 320TE (w123). Pump is working, there are no leaks that I can find anywhere and fluid level is fine. After adjusting the height level with the engine running, I thought everything was just fine. I drove for a while (about 5 km). Then after returning to the car several hours later, it starts jumping up and down in the rear end. Now the rear end is suddenly raised way too high! I am thinking, that maybe the valve needs repair/replacement.. Will a bad valve let too much hydraulic oil through and cause the system to raise too high? Thanks, Ronald, Denmark |
#2
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A stuck valve might do that, but it's probably not bad. Bad valves leak internally so that the car sags after sitting for a while. Check the linkage (again) and the sway bar links. One or more of these may have come loose or broken.
__________________
1984 300TD |
#3
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Thanks OldPokey,
Glad to know, that my valve might be ok ![]() Excuse me, but my vocabulary in tech-words is not very good (I am danish). What exactly is the 'linkage' and the 'sway bar links'? ![]() My arm on the valve is not a part of the valve, but can be turned 180 degrees before fastened with a tightening bolt, and then I can also adjust the other 'arm' that reacts on the rear weight. Thanks, Ronald |
#4
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IIRC there is a valve on the body with an arm that attaches to the suspension arm. When there is a load the arm activates the valve to provide more pressure in the system to lift the rear. If this arm link fell off you might have such an event. I think they sometimes also seize with rust.
Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual. ![]() ..I also have a 427 Cobra replica with an aluminum chassis. |
#5
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Here is what the sway bar link looks like:
http://tinyurl.com/2mqmst And here is the pull rod you just replaced: http://tinyurl.com/2q7py4 If any of these parts is broken, loose or otherwise damaged your car's ride height will be affected.
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1984 300TD |
#6
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Thanks again.
Bu t there is a problem with the url to the pictures. It redirects to a place that does not exist... ![]() |
#7
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It happened to me, same symptom on a 600SEL W140 and many times on 560SEL W126. They are almost all the same system. What I did is that I readjusted the rear hydraulic valve and it worked fine. Sometimes you need to adjusted many times so you make sure that there is no air in the oil stream.
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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D 380SE 1984 <------- Totaled by flipping accident 300SE 1988 <------- Sold Volvo S70 2000 <---- 4 family Opel Omega 2002 <-- 4 family 560SEC 1989 <------ Sold 560SEL 1990 <------ Sold 560SEL 1991 <------ 4 my mother 560SEL 1989 <------ Sold 600SEL 1992 <------ Current |
#8
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Hey zcc. That is good news! I will give it a try again.
Two additional questions: 1. The system is self-bleeding, right? So I guess that I do not have to bleed anyting (I opened tha valve and there was immediately soming fluid out) 2. Isn't the sls system supposed to be correctly set, if you can put a wire through some holes that are alligned (haven't done it yet...) /Ronald |
#9
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![]() Quote:
I don't know but I don't think so.
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D 380SE 1984 <------- Totaled by flipping accident 300SE 1988 <------- Sold Volvo S70 2000 <---- 4 family Opel Omega 2002 <-- 4 family 560SEC 1989 <------ Sold 560SEL 1990 <------ Sold 560SEL 1991 <------ 4 my mother 560SEL 1989 <------ Sold 600SEL 1992 <------ Current |
#10
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OK. Thanks again. I will get back to this forum in the beginning of the week and post back if the problem was solved.
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#11
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I found you some useful information here:
http://www.peachparts.com/shopforum/tech-help/63511-urgent-self-levelling-help-required.html#post1633531 Thanks OldPokey.
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D 380SE 1984 <------- Totaled by flipping accident 300SE 1988 <------- Sold Volvo S70 2000 <---- 4 family Opel Omega 2002 <-- 4 family 560SEC 1989 <------ Sold 560SEL 1990 <------ Sold 560SEL 1991 <------ 4 my mother 560SEL 1989 <------ Sold 600SEL 1992 <------ Current |
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