How to lower or raise and bleed sls w140 s500 1995 self leveling system
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- Опубликовано: 10 сен 2024
- This video will explain how to raise or lower the sls system on a w140 s500 and other models equiped with rear self leveling shocks.
Here is link
www.peachparts....
Here is info from link
The SLS Valve controls the height at which the rear of the car sits. The lever arm position tells the valve to raise or lower the rear. The lever arm is moved by way of the sway bar. Which get rotated when the rear of the height of the rear end it changed. With the car running and unloaded the lever arm should be in the neutral position, which is parallel to the ground.
Before you get started be aware that moving the lever arm of the valve with the car running will raise and lower the rear end. If it's not lifted and securely supported by the wheels with ample working room you could squish yourself under the car. Now that I've scared you away, lets get to it.
It is a simple job, only a couple tools are required. You'll want two 10mm end wrenches, a 4mm diameter locking rod to lock the valve in it's neutral position, which is now available as part of my SLS Valve O-ring kits. This is best done with wheel ramps. The weight of the car needs to be sitting on the rear wheels as if it were on the ground.
1. With the engine off, remove the adjusting rod from the lever arm. You'll need two 10mm end wrenches. Don't just twist the nut off, you need to hold the other side or you'll break the ball joint.
2. Once the adjusting rod is off. Move the lever arm into the neutral position and insert the locking rod through the lever arm and and into the hole in the valve (As seen in the pic). You've now locked the the car into the proper neutral unloaded height.
3. Start the car and let the SLS system adjust itself to the height.
4. Then adjust the length of the adjustment rod if needed, then reattach. Remove the locking rod, and you're done.
There are a couple reasons your ride height when set to the proper height could still be too low or too high. If your springs are tired they aren't doing their job to the fullest and will allow the rear to sag a little lower than it should despite the valve being set at the proper height. Or if the valve has been rebuilt and the lever arm wasn't put back on in the proper orientation you could have the rear sitting too high or too low, depending on how the lever arm was put on. Stay tune for the proper alignment of the lever arm and rod.
Wow, this video has helped me a lot, thank you!!! I went to 4 garages and no one knew how to get it higher. Most of them told me: it is because of the LPG-reservoirs in the trunk. Respect man!
ruddytje so glad it helped. Nothing worse than being told something is right when you know it can’t be. I drove around for a few weeks feeling every bump and thinking this cars suspension sucks but I knew it shouldn’t be that way. Once again glad I could help.
Pete’s Carport im not far from you but mine is high in the rear I heard about some accumalators but I will look at the adjustment areas if I don’t need new shocks in rear I won’t take them off or what’s best way to reach u I can call I’ll leave my number 9123990212 my name Ramone thanks
I have a 2002 e320/w210 4matic, with the SLS. I bought the car about 4 years ago, but lately my ride has been a bunch "clunky". Nothing major, but noticeable. Recently I replaced the front struts (or should i say, had them done). When I had them done, I noticed my PS reservoir was low, so I asked about it. The guy said my rear accumulators were fine.
I didn't believe him, so I replaced them myself. The strut (or Shock absorber, whatever) in the back looked fine, and the drivers side accumulator had a lot of fluid in it when I opened it (though the bladder itself didn't seem to be bad).
Once I finished replacing the accumulator, the ride was smoother and no heavy clunk in the back. I filled the reservoir, and went about my day.
This was the case for about 2 weeks, and now the clunk is back. The level in the reservoir hasn't changed, so I wondered if maybe I introduced air into the system (makes sense to me).
I looked for burping/bleed the system, and thankfully came across your video.
Stupid question: How many times should I raise and lower the car to properly bleed the system?
Thanks in advance to anyone who offers up help. :)
Did you get it worked out ? ... Any advice for someone that owns a 2001 E320 wagon
@@hajileserpud9539 eventually (as in earlier this month, Dec 22), I had the subframe bushings and the rear shock mounts were bad. Once those were replaced, it was much better. I also think that the car itself will always have a clunk, just the nature of the beast.
Not sure sure the PS fluid reservoir shows signs of being low once in a while, it makes no sense. Sorry if that doesn't help you much.
Thank you for uploading this video, it really helped me bleed the system on Mercedes 600SEL after changing the accumulator.
sjc7246 that’s great and thank you for feedback
Do you have any information about the front shocks? Does the front adjust the height too? From what I know the front is not hydraulic.
I need help or info on mine all of a sudden mine is very high in the rear and staying up
I just saved couple thousand EUROS , because of this video ! Thank you !
Wow that’s amazing. Didn’t realize this older video was still helping people. Sorry for poor footage but it’s what I had back then. May do an updated version soon
Thank you so much for the. Easy tutorial.
Thank you so much! I wish I had seen this 2 years ago!!! no more massive clunking! Looks better, drives better, awesome!
Great. I'm glad it helped. A lot of people don't know to do this.
Ur Info is so great. I have a 500sel 92.do i have sls System. My Reservoir Was very low. My car raised all the way up. How can Release presure back to Normal Level.
Yea sounds like you have rear sls. So one easy way to bleed the system of air is to hold your brake and gas down at same time while in drive. It’s called power braking. Just be very careful to hold brake so car doesn’t take off. This will self bleed the system. If this doesn’t work you need to check your level bar shown in video. You may have a broken rubber mount and that would cause it to go way up. Replace this and should give you better level
Maaaan i love you bro your videos save sooo much money on diag and inspections....
I have a S320..Much appreciated Brotha
Thank you. Definitely subscribe. I have lots of w140 content and more to come. Also have a w126 and r129 I'm going stuff on
thxs couldnt find anything about this...was a great help
faron sawyer glad it helped. I couldn’t find anything but a forum and it was so confusing even my mechanic had no clue what to do. I just played around until the forum guide made sense with what I was doing.
@@petescarport it worked fine Pete...thx for helping me fix my Benz and saving alot of money
faron sawyer awesome. Ironically this week my sls adjustment rod broke out on highway. The ends have a rubber bushing that rots out. I will be making a video soon on how to fix and change.
Weird issue. I did this about 2 weeks ago and it improved the ride quality immensely, but it's slowly gotten worse again. Now it's crashing and banging over bumps just like it used to. What's odd is the level in the reservoir is even higher than it was initially after I bled it and topped it off - almost like it's pushing the fluid back into the res from the shocks/lines. Any experience with that?
Hey pete..what kind of wheels and tyres you running also..what do you mean you remove the inserts on front to lower car this meanin spring cap??
Hey pete im watching this video is 1 yeat old but my mercedes benz w140 is lower at rear wheels do i have to change anything or what
There's a few things that can cause this. First and easiest is check hydraulic fluid levels. Next adjust the hydraulic ride height. And last you could have bad hydraulic accumulators. These are the tops of the shocks that hold hydraulic fluid. Now there could be other things like hydraulic leaks or bad parts in system but if car is riding nice it most likely needs adjustment.
1993 600SEL. I will be trying this out
Let me know if you need help. Also you have an insane car. Love it so much
@@petescarport Thanks brother, I'm 30 minutes north of Atlanta.
@@petescarport Are you on Facebook or Instagram.
My ig is Sublime1976 you can see some interior pics of the car
@@ZombieSheeple just followed on instagram
I did what you recommended to raise the car up and slowly bring it down coupons of times !! The sls hold the car for 2 days only ! Now the car is all the way down?
Any idea 💡?
Thanks again
Adam Hadad I wonder if there is a leak somewhere in system. Make sure to check your fluid resovoir. I know it is very common for the lines to corrode and leak causing issues holding.
Last thing I can think of is to make sure you tightened the adjustment bar all the way. Hopefully you figure this out and keep me updated. Have a great day.
Pete’s Carport
Sure !! Thanks for responding
Do my 500sel 92 have sls System.
Earlier this week I purchased a W124 E300 diesel. Just looked under the hood to change fluids and saw a hyd. bottle... wtf... oh, now my "simple" diesel is complicated!! LOL If something goes wrong can I swap in some regular shocks or is this system a "good" thing?
Hey there, I recently got a 600SEL with sls. But since the beginning I can hear a hissing sound at the rear of the car when it’s running. It rides perfectly well and doesn’t sit too low. Is the suspension supposed to hiss, or do I have a leak somewhere?
So I don’t think the hiss is coming from suspension since it’s hydraulic fluid activated and not air. I’m guessing a hiss would come possibly from a small exhaust leak. Can you send me a video of sound and where it’s coming from. Shoot me a message on Instagram. I use same name on Instagram
hi Pete. great video! my w124 wagon’s accumulators and hydraulic struts were changed. car sits too low in the rear. when we move the sls valve lever up or down with engine running, we get no movement at all. any idea what the problem is and what we can do about it?
check :
- hydraulic pump pressure
-hoses leak
-sls valve externely or internely leak (if internely leak replace it)
nice 👍🏽 explaining
Hey Pete. My 1992 500SEL I bought last year has had both accumulators replaced with Corteco units, but the ride is still very harsh. I finally got around to thinking about it and I know the tech who installed them didn't do the most thorough job. I assumed they just hadn't been bled. But when I got underneath it and loosened the nut and attempted to raise and lower the car with the adjuster, it did absolutely nothing. Any ideas? I might have heard something when I was at max travel but I don't know for sure.
Yes it could be a bad sls valve but from my experience they will leak from seals when bad. Have you checked to make sure fluid is still full
@@petescarport I did check all that. I actually figured it out. The shop that did the install never bled them. I cycled them and held it in the up position and it took about 30 seconds before it started slowly moving. Got faster from there and took more fluid and now I have functional rear suspension. Your video helped a ton.
So my w124 estate was too high. Almost 4 inches over the rear tires. I Began adjusting it, I started the car and noticed I was low on hydraulic fluid. Filled it to level moved the rod down and got nothing. Moved it up and it moved up. Pulled it back down and it came down but stopped higher than it was before. Should I leave it down and drive around to see if it adjust lower?
It will most likely adjust. Mine always did. Right now I'm driving with it all the way low and ride is good but I know it would be way better in middle. But usually I see a 2" drop from time i set till it settles. I know sounds crazy but it's what I saw
Pete’s Carport the rod can adjust almost to pointing at the ground. So if factory is parallel what degree should I set it for about a two inch drop like yours.
@@damepeters man it's been a long time. Honestly I planned to go back to stock rims sometime very soon and adjust her. My current rims will be going on the v12 s600. If I remember right I went all the way up and then came down about half way on the slide
If it keeps rising won't the bag pop?
There’s no bags only hydraulic spheres called accumulators. The w140 uses hydraulic shocks where as the w220 went to air. Hope that helps.
hi in all mercedes w140 models is that available or only in hydraulic system??
mohammed hamad unfortunately only in models with the hydraulic suspension. The s600 even had front. Now good news if you want to lower in most other models you can do coil overs or lowering springs.
If you’re getting a hard ride or bouncy ride it’s usually not the shocks. The rear of the s class that has self leveling Does not use shocks it uses hydraulic rams to level the car. The comfort and control of the ride comes from the rear accumulators. Over time these fails and they fill with the leveling fluid which eventually causes a completely hard ride in the rear. You should really do some research and learn the components that make up this system, how they work and what they are called. But you’re on the right track! These cars are pretty solid machines when all the bus are sorted through that previous owners neglected.
Garrett Dodson you are absolutely right in most cases it’s the accumulators that go bad. This video is actually after completely changing the rear hydraulic shock (ram). Originally I removed them to change the accumulators but found the bottom strut bushing was bad and decided to change entire assembly. Once you do this, in many cases, you will get a ruff bouncy ride if air bubbles are in the lines. Many people are then told by bad mechanics that the new shocks are bad. I found someone who did a write up on how to bleed the system but there was no video. This video shows how to do the process they put. But thank you so much for filling me in and I always love to learn
Hey Peter, Thanks for this. My car is a W140 V12 Coupe. I have a feeling my accumulators are bad. Have you got any idea where I can get instructions on how do I change them? Hydraulic system flush and bleed? Many Thanks
Bobby Valchev according to Mercedes and pretty much everyone I have talked to about bleeding say that it is a self bleeding system and basically any trapped air will come out by raising and lowering the system. This can also be done by adding at least 200lbs into trunk and reving engine.
Accumulators are very common to go and the only way to know is by removing them and doing a test.
My favorite videos and someone who is extremely knowledgeable on this is victor from restoreyourmercedes.com
He also has a ton of helpful videos. Also please feel free to reach out as I have learned a lot myself just from doing it and researching. Good luck and remember if you do decide to change the sls completely out you will have a car that once again rides like a dream
Thanks a lot for your reply! I will definitely check this out and let you know how it goes!I really love old Mercs!
I have 1997 s600 , we did adjust the sls , the car level was perfect BUT when I drive the car around the level can’t stay the same !! One time goes up !!!
When the level went up I adjust the rod shorter and make the level perfect 👌
And drive again then the level dropped down!!!!!
Do you have any idea 💡??
Thanks
Adam Hadad sounds like you have air in line. It’s a self bleeding system. Some claim that Mercedes techs even sit in trunk with at least 300lbs (2 adults) and rev engine. This will force car to run fluid to level out and get air out.
Adam Hadad actually after thinking about it I was able to bleed system by adjusting the level up and down slowly while it was on the ramps. After several times air was bled. I also noticed whatever level I set it at the car would rise an inch or two iafter I drove around
Thanks a lot for your responding!!! I will try and follow your instructions and I will inform you about the results!!!
Am I able to have your email address?
If yes please email me to adamhadad1074@gmail.com
The E38 have SLS only in the back....the W140 in the front to ??
Some models of the w140 specifically the s600 have front and back. I believe the grand edition and maybe the s500 coupe as well.
Peter,
did you install 2 new SLS shocks?
I am contemplating to do also.
I replaced top mounts for both SLS shocks about 6 months ago with new accumulators.
the ride got better but still not so pillowy..^^
I adjusted SLS valve to push the backend up a bit (adjusting nut about 70% towards the rear).
Still not high enough though.
the problem I have is if I push it up higher, the ride quality suffers. 9it gets pretty harsh).
Please share your experience with new shocks with me.
thanks.
Joohan Kim i did change the entire shocks out after attempting to just change accumulators and save money. I wasn't happy with the condition of the shock specifically the bottom rubber bushing. My car had a loud thump and a major bouncy feel so I decided to change out the entire shock. The first few days I was extremely disappointed because the ride was very rough and bouncy. After doing research I realize I needed to bleed the system and even after putting some weight in the trunk it did not make the ride much better. After doing this video and adjusting the ride height I am blown away by how amazing the ride is. Yesterday i took it down a dirt road that I go down with my Lincoln Navigator and I didn't even feel a single bump and normally in the Lincoln Navigator it feels like you're driving a school bus. With this said I highly suggest swapping out the entire shocks if you plan on keeping the vehicle for any extended time. This is a car I plan on having for many many years.
Joohan Kim also here is where i purchased and i also used a coupon code making both shocks about $800 with shipping. You can even purchase an extended warranty from them. www.partsgeek.com/gbproducts/SC/6446-08045630.html?SC&+Mercedes+S500+Shocks+Sachs+Rear+Right+94-99+Mercedes+Shock+Absorber+98+97&PartsGeek+Google+Base&gclid=Cj0KCQjw8MvWBRC8ARIsAOFSVBWME_mvDvMljRqcH5pNT2Ke9Tyjq2FcjCo4jYYmCE1QtUj1XeXT7yQaAqimEALw_wcB&ad=47433948732
Peter, after i read your reply..i am very inclined to do so..even though i already spent money on upper mounts... cupon code?
Joohan Kim coupon code save15 will give you $15 off and they should have free shipping. I looked around at all the sites in this seem to be the best deal by far
Peter, i will try to move the adjust valve up and down couple if times before jumo to the conclusion. I adjusted the valve multiple times but always when engine was not running. So.. who knows.. it might work..(i highly doubt it will in my case since it was properly bleed..but nothing to lose here..^^)
bro,,, if i raise it up too much it will stay as the weight i raise for a long period ??
mohammed hamad I’m trying to figure out what your saying. Basically whatever level you lock in...it should level out to that height with any weight added.
mohammed hamad also I’m doing a new video this week. I just broke my sls adjustment bar and had to instal a new one. I will be going over setting the ride height in next video.
God bless ya
mohammed hamad lol. I’m all about wanting to help fix issues. These cars are amazing but sometimes a pain in ass. Let me know exactly what you need and i will do my best to help
thank u for ur carring
How did you lower the front??
I took out the spacers that go on top of the spring but this year I'm going to add h&r lowering springs.
Can you make a video about how to remove front spacer??
Does anybody know how to adjust the same issue on W220?
I had a w220 but mine was converted to standard suspension. With the original suspension they are raised up and down through a button on car. I believe you can even buy a linkage system to lower them.
Here is a link for lowering links
www.amazon.com/Adjustable-Lowering-Links-Suspension-Mercedes/dp/B00S95B5LQ/ref=asc_df_B00S95B5LQ/?tag=hyprod-20&linkCode=df0&hvadid=317010981797&hvpos=1o1&hvnetw=g&hvrand=11553314750166400390&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9012056&hvtargid=pla-442508187278&psc=1
@@petescarport thank you, Pete. The rear end of my car was raised higher than before after i had installed all 4 struts, giving a look of a hot rod. I was just wondering if there is a way to adjust the height or did I install the wrong struts? I know there's a button in the car to rasise/lower the vehicle but that's not what I was looking for. There are videos on RUclips showing how to fix the problem on previous S class models but nothing on W220. Sigh...
Do you still have the w140 ??
I do still have it but I may have to sell soon. I picked up an s600 and need funds to rebuild it.
@@petescarport i have two E38's
728i
740Li
But for many many years i dream a W140
😁😁😁😁 a dream must be made right ?
😁😁😁😃
Yup. If interested let me know. My w140 is extremely clean. I plan to do a few more things that need to be finished off but I've only put 2k miles on it in 2 years
@@petescarport it's the Long version ? When you have some time ...make some video with it 😁😁😁😁
@@TheRazvy1990 yes it's long edition with reclining and heated back seat option as well as rear sunshade. Basically nevery option
Check Kent Bergsma’s channel mercedes source. He is brilliant when it comes to repair and maintenance on mercedes Benz vehicles. From the oldies from the 60’s to present modern Mercedes. He also has a great website where you can buy parts and tools and all kinds of things. When you know where to get good quality oem parts without the dealer markup and a good Indy these owning a Mercedes isn’t any more
Difficult or costly to repair and own than a modern Chevy or ford product.
Garrett Dodson Kent is an amazing and talented man. Also victor from restore your Mercedes goes into detail on many common W140 issues.
I think you are one of those engineers that got fired in 90' From Daimler group for designing this BEAST....and 1 billion dollars didn't go to waste....its the greatest Mercedes Benz technology ...way ahead of its time....now days The Mercedes Benz is like Toyota ( pardon me , Toyota makes great cars) Honda and all others ...Technology makes everyone equal these days...and thats the saddest part of it :(( No more PRESTIGE..No more Classe...its all the same :(
You are correct sir. I say it all the time. I had a w220 s500 and my wife's 2013 Camry was a nicer car. Lol. Thanks for watching
hello bro I have some questions can you send me your email???