Part 3 W220 Airmatic Testing airmatic valve assembly
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- čas přidán 31. 05. 2015
- In this several days project I have fixed a Mercedes W220 with several Airmatic system issues. These include a leak in the Airmatic valve assembly, leak on top of one of the strut and fixing of the compressor to produce better compression for the system.
I did a lot of research using Mercedes documents for the vehicle, which I have compiled into these videos.
Since the repair, I have been running the vehicle for several months and the system has been performing well with no issues. The overall cost was minimal for all my fixes as I didn't just replace the components randomly. I hope these notes will help you fix any Airmatic related issues on your Mercedes.
There are in total around 8 parts to the notes. Please allow some time for me to be able to share all the notes with you.
All your work, time, and research is appreciated. There are only few of us out there that look into things to diagnose and understand why and how these issues happen and try to fix them. Thank you.
Your detailed explanation of the Airmatic system proved very helpful. Thanks so much for sharing.
Thank you so much for taking the time to document this process. Also, Hi from Seattle!!!
Very nice trilogy, professional explanation. Good camera work, clear images. There are many good videos in youtube that adolesce of poor images, not this case. 5 stars posting!
VL = Vorne Links = front left
VR = Vorne Rechts = front right
HL = Hinten Links = rear left
HR = Hinten Rechts = rear right
;)
Thank you for sharing this. I should have paid more attention in my German class in school. Now the abbreviation makes sense. I appreciate the information. I hope other users see this, could be very useful.
Hi!
Please help me my mercedes w211 e320 cdi the right side sometime after stoping the car and going to shop or anywhere after coming back i see the right corner front is lowered.just right side .and after starting the engine on dash its sais stop car too low after couple second is raising and its ok.what can be? is no hear air leacking.Please help me , thanks!
hinten actually means behind ;)
thank you so much though!
Baerchenization Thanks!
Thanks!
I measured the resistance between pins with ohm meter. pin 3 (as you assigned)is common pin of these 5 relays. any pin to pin 3 is about 8.5 ohms. resistance between any other pair of pins is about 16 ohm. thank you for sharing you work.
The abbreviations are German:
VL = Vorne links = front left
VR = Vorne rechts = front right
HL = Hinten links = rear left
HR = Hinten rechts = rear right
very informative videos Waqas. Thanks much!
Thanks Waqs, you are amazing.
Your videos are amazing, and you make your research properly. Appreciated
السلام عليكم ورحمة الله كيف حالك يا دكتور لعلك بخير هل يمكن ترجمة هذا الفيديو او على الاقل مختصر ما يحتويه لاننى استمعت اليه لكن طبعا لم استطع الترجمة نظرا للسماع هو يتكلم بسرعة الحقيقة وطبعا المستوى اصلا فوق المتوسط بقليل
Truly great work. Much respect bro. Id like to add that just because those solenoids click doesnt mean theyre functioning properly. A better test would be to actuate them, then blow air through them to see if in fact they arent sticking
Extremely helpful and thank you for your expertise.
Thank you so much. Great help, good explanation
Great video. Thank you.
Thanks for taking your time to illustrate what could be mysterious to non-mb mechanics. I love my s500 4matic, but you need a degree in astrophysics to work on it. No worries cause I'm a freelance rocket scientist. Much appreciated sir.
much appreciated. its very detailed and informative. thanks
Thank you so much it is very useful video
thanks
great and very informative
Thank God I have a DAS machine. As a former MB tech, I wouldn't have patience or the time for the manual testing. With the DAS machine, I can test each wheel and valves individually and see the pressure in actual values while it's all together. Also if a solenoid failed in the distribution valve, you will get a trouble code in the Airmatic control unit.
Nice video!
Ahmad you are awesome buddy
Thank you so much
+Autotech Shreveport Thank you for your positive comment. I appreciate it.
OK all of this is pretty straightforward on my S 500… 04 model year model I’m working on, I am more concerned about the inner workings of the valve body if they are like tapered valves that seat in and if all 4 are dropping that we can indicate it’s the main air supply valve seat that activates and either opens or makes a tight seal when it closes off with that much corrosion I wonder if you can shoot some lubricating oil or something into those valve areas to help them make a better seat and that oil would work back out of the chambers etc.
Great videos on the W220 airmatic system.
Questions, were the air fittings difficult to remove from the valve block? Did you consider any of the aftermarket brands as suitable replacements vs. the Mercedes brand? There's a huge difference in price.
Thanks.
Hello thx for these vids, I've a 2010 S350 with AMG kit, where can I find the maintenance manual for it on line (free). Also the locations of aux batteries. Thx
excellent thanks
Very nice
Good video.
Can i please ask you do you know what is operating pressure of the sistem it self?
I want to check valve assembly with corect pressure or air supplied to it.
Using pressure gauges to check if there is any leak back in valve assembly over lets say 48h.
As far as i understand it,ones valve has let pressure out to strut.it closes up and keeps pressure in the line?or am i wrong?
This is to test the part off the car, compressor it self builds up over 4 bars of pressure very quickly and fills up my 4 bar gauge and goes over it.
Compressor it self build up good pressure in to dead end gauge,but after few min pressure in gauge starts droping down? i assume compressor it self is not ment to be under pressure all the time? air feed valve in valve body keeps pressure up and if it needs more in will open the valve and let compressor build pressue up?
Hope you can help me make sense if testing it.
Thanks
Super. You have to work in NASA... Thank you very much.
great and very informative. I have my car 2010 w220. system stuck at sport mode. any idea what I should do to reset it again. air system working fine. car raises and lowering fine.but switch stuck in sport mode. and ride is not comfortable hard and u feel it hard. plz help me to find out the cause to rectify it.
thanks
I have a 2007 gl-450 with only the driver side dipping intermittently. would u recommend replacing the entire unit or waiting for the whole unit to fail on that side. Will it just get worse?
Something important with those cars: if you have problems with the pneumatic suspensión system (any problem), do not use too much the car, as the compressor will work in excess and it can break (at that moment, you are adding a second problem to your initial problem: a broken compressor).
Ahmed, have you tried to separate the black plastic cap from the aluminium block to get access to the valves?
hi my name is Edie and i have a 2002 mercedes s430. i have replaced both shocks in the back and the air pump and the release valve. However the rear suspension stil does not come up whie the front comes up with no problem.
Hi bro, I have CLS 2006 with Airmatic I am hearing hissing noise near the front left tyre after parking and turned off engine. Frankly I haven’t checked if the car goes down after this but I will check it tomorrow. Also I am hearing the pump go on for few seconds during driving. No warning message on dash. Kindly is this normal or I need to check the system??
Wagas, try to repeat the same info less than 30 times... thanks, but I have a feeling you are trying to make this as long as possible which is annoying for some of us that have allot to do....
Nice
Where could be the problem on my car if whole car lowers in 2-3 hours, on all 4 wheels ? It can't be on struts right ? IF only one strut leaked then i could see only that part low, is that correct? Also if this valve assembly is leaking only on one line, then only that side will be lower ?
I have a 2002 Mercedes S430. When I got the car it was lifting fine but it was a noise you could hear from the car while it was airing up. Every now and the the Airmatic light would come one the dash stating to Stop the car. Now the entire front end lowers down on the wheel but will rise when the car is started. Also, now the back is up higher than usual. Please help
my air compressor turns on but shuts off after min or so, any idea I swapped the replay with other one.
If my valve block is not throwing any air, could the power source to the valve block be the problem. And where is that power coming from.
On the car I'm working on I fixed the leak at the top of the strut but also found a small leak at the valve manifold, it leaks where the aluminum and black plastic are.. Can you take these apart to fix them?
Great vid - thank you. Bit confused. Was just about to take a look at mine and am confused as to which side it is on. Am in UK so is it on the UK passenger side (as I had thought) or UK driver side, before I pull the wrong inner wing off!
Cheers!
It depends . .. . . . for example, I have a 09 CLS550 (US) and the ValveControlBlock is located above the compressor on the DriversSide between the front bumper & front left tire (US), in the UK that would be the passenger side between the front bumper & front left tire.
my s500 2000 was sitting for 8 months n after star air bags don't work anymore, compresor star for 1 minute n them shotdown what I suppose to do?
The w211 only have 5 connections…SP,P,HA,VR,VL….so SP is the air tank/reservoir,VR&VL is front so what is the P&HA ?maybe one is for the rear and the other goes to the compressor?
My EIS is creating systemic problems like my air suspension pump is not working. I want to manually activate the pump as well as both front left and front right solenoids that way the front end will rise to a desired level. Is there a need to activate both air tank and solenoid pins (example, VR : 2 +4 and 2 + 6) ? Cant i just activate pins 4 and pin 6 without activating pin2? Thanks.
exactly what i want to do! activating the valve inflates? so how do you deflate?
Very good series of videos. I wonder if you might have missed something in your analysis of the problem you had. You mention the split intake hose was allowing dirty and wet air through. I don't think the filter is capable of drying the air on intake however. I am wondering if you had leaky struts, which would then cause the compressor to run much more than designed, which in turn would cause it to heat up. Warm compressor would lead to condensation in the compressed air, and I assume there is no mechanism to clear water from airmatic, it's a closed system?. Just my thoughts, once again, thanks for the videos.
It is my understanding that the intake hose on the compressor has a filter that's filled with desiccant pellets, which removes the moisture from the incoming air.
Nahh the air dryers not in the hose, the inline filter is also a fluid filter (or same design at least) but on the compressor itself, theres the 2 cylinder shapes that run parallel to eachother, sitting sideways, or horizontally. The bigger, metal one on the top, is the electric motor that spins the piston, and the smaller plastic one on the bottom is the air dryer. Filled with a bunch of dessicant beads, pretty much silica beads. You can easily take it apart and replace the beads if you live in a more humid area. Ive seen others who replaced them and they were SOAKED. But the system works by pulling air thru the filter, and then thru the air dyer. when it releases the air, it blows back thru the dryer to help dry it out, and thru the filter to help clean it out as well.
Muy interesante.
Hola, el w220 S500 de 1999 WDB2201751A011040, suben parejo los tres amortiguadores excepto el trasero derecho que se queda entre 2 y 3cms más abajo que el izquierdo, sin embargo, al cargar el coche con pasajeros suben casi igual los 4, pero en vacío no tanto, de manera que el coche siempre está bajo del lado derecho trasero.
¿Cómo lo puedo resolver? Gracias anticipadas
How did u clean the air block clogg
Hello , can you send me référence of sensor B7 - AIRmatic pressure sensor , is IT possible to change only this part ? Not thé complète valve ? Its to expensive...
great
great help ill try this and hope mine works . I only had 1 rear which was down so I removed the valve body to check for blocks all fine I did number them ;-) but now none are rising its staying flat luckily its on a 2 poster ramp and its coming up with the code c1144 pressure switch did I do something wrong :-(
Yas Chadli You are welcome. Do you know if the Airmatic pump is running? Some times if the leak is really bad the car will not rise at all. It could be worth blocking the pipe for the bad strut and see if the car rises again. I have two further videos, which I will be posting in the next couple of days. They might help you a little more.
Thanks iv got the repair kit for the pump its like your the filter had a split letting water in the piston ring was worn and pitted, hardy any air was coming out of it
i am hoping to have the parts today , been a great help fingers crossed 😊
Yas Chadli Glad to help. When putting the ring, look out for it's position. It is important. There are videos on CZcams that cover how to install the ring. If I remember correctly, there is a small groove, which has to be in the correct place.
Hi thank you for that i did watch it 😊
i got a2004 e500 and its staying up wont go down took out the compressor and service it works good but still stay up
Oneil Smith I think the problem is a stuck air outlet valve which sits next to the main as it pressure line coming out of the front of the air compressor. If you feed it 12v through the connector socket it should click. If it does not then it’s stuck
wat thread size are the brass fittings?
Hi Waqas. I know you did this many years ago but has anyone you know tried replacing the level valve block with the plastic (ABS) OEM equivalent units available on Aliexpress ? I'm keen to see if they are worth trying or if someone has had experiences with them (Good/Bad)? Any constructive comments are appreciated.
hi don, I just purchased one of the Plastic (ABS) Equivalents off amazon, just got it today haven't had a chance to install. will do on Saturday, i'll let you know. I purchased a metal housing unit 6 months ago which I'm returning because the left rear would stay stuck open, and the air bag would just fill over a few miles till the car was leaning really bad. I would climb in the back seat and slowly let the air out til it sat level, but would fill up in a short period of time. I'll keep you posted.
How can i download a w220 car brochure like i have in your computer
hey i was hoping for some help. pretty much i have a 2006 Cls550 the air suspension failed. the front right strut was blown out. we changed the strut the car wont rise, the motor is working fine, there are no leaks, but the car wont rise, you can hear the noise of it pumping and the lines all have pressure and i have even took the relay off to connect it directly to pump continuously and still not higher at all what else can be the problem what causes the struts to open and allow air inside? any ideas.
Hi, great job you done putting these videos together. I have a 2006 Jaguar XJ8L and in the winter the car doesn't rise to the occasion. I bought the conversion kit and fixed it but I miss my air ride. Could my problem have been the compressor? all 4 sides are low and took a lot to get it up even as temperatures got warmer. Thanks and your response will be greatly appreciated.
hi, nice videos, how did you clean it?
Aziz Khodzhaev Thank you.
I used alcohol based cleaner with air to clean the valves.
If the valves don’t open up quickly then I suggest the part should be changed.
Cleaning alone might not fix the part.
I am almost finished with the project will upload further videos
to share how it is working now.
if the block is aluminum or pot metal, alcohol should probably not be advised as the reaction of aluminum and ethanol forms aluminum triethoxide, which decomposes into aluminum hydroxide and ethanol in the presence of any moisture2@@WaqasAhmed-kj8ue
you have any ideal My S 500 Left and right rear air suspension higher than front after change valve block please help
Thank you.
Right side leaning left side good what's going on
Thanks for explaining this so well.
Question: if only one airmatic corner hangs could it be caused by a bad relay?
As I understand a sagging corner could be due to a leaking strut, leaking air line, a defect level sensor or a faulty valve assembly. How are the solenoids in this valve assembly controlled? By the relay?
My compressor works well for left side airstrut (rear only airsuspension), but right side doesn't lift. Would it be safe to say that the kompressor itself is ok?
Hi,
If you are able to hear the compressor running, then it is not be the relay. If the plastic cover is removed under the bumper where the compressor is, then you can also touch the body of the compressor to see if it is running. In general it is reasonably loud without the cover.
The compressor sound is like humming sound and last for few seconds upon start up to pressurize the system.
Also if any of the other struts are rising and lowering then it is unlikely that it would be the relay. Hope this information help.
Regards
Waqas
Thanks! I will fault check downstream from the compressor then. Compressor seems ok, usually turns on for a few seconds in the morning. When I took off front splash shied the air filter and hoses just feel on the ground. So pump probably doesn't last very long from all the grit and water that must have entered it.
Another question: How did you clean the valves?
By removing and replacing fuse number 108, you can compare the working of the system with and without a working compressor. If, under both cases (with and without a fuse installed) the results are the same, then the problema is probably with the compressor.
Can you share the manual?
👍👍👍👍👍👍👍
Can i have the catalog for it ?
hello, guys , this is LEO from china, sorry for my poor english, wish you can understand when i am describing.
i have a 04 W220 S350.
one month ago, as no idea, i got the airmatic warning : CAR TOO LOW, STOP. the back of the car is so low, but front looks no problems, i can drive, but not fast than 80km/h.
then i went to some repair factory， and hard to fix it. so i try to do it by myself.
i use the computer to read the car's code.
C1314 Y36/6y1 .
C1013. REALY have not 12v .
then i changed the new valve. but when i do the changed . all the gas went out, so the front is as low as the back. and then i can not drive it any more.
but i use computer to read the code .
C1314 Y36/6y1 .
C1013.
missing, now the new issue code is
c1517 -001
c1517 -002
is there anyone can help me to know where is the problem , and which part i should check .
thanks so much
Hello,i have a malfunction on the dash "Airmatic visit workshop" and on the tester appear C1322 - Right front solenoid valve 1 - Permanent..What i must do,i need to take down the airmatic valve assembly and clean the VR one ? Please help a friend in need :)
(ABC MALFUNCTION) ACTIVE BODY CONTROL LIGHT ON? 2001 w220 Airmatic mercedes benz NO LEAKS AIR SHOCKS GOOD? AIR PUMP GOOD VALVE BLOCK GOOD RIDE HEIGHT SENSORS GOOD? BUT CAR WONT RAISE ITS YOUR N51 ADS CONTROL MODULE REPLACE IT.
you are wrong.
Pin 6 is Ground.
and the numbers on the front are the Pin numbers for each valve
i just tested it and Hollowman1701 is right, pin 1 is for valve 1 and 2 for 2 etc.. and 6 is ground or 0v. Don't forget thats 12V DC, don't mix them.
My problem was valve 1 and 4 stuck with mud because my filter is out of age. i cleaned it multiple time and its working again. Good luck guys (not native english).
@@floo6831 of course i am right ;-)
how did you actually clean it?
Links=left
Rechts=right
Vorne=front
Hinten=rear
So HL=Hinten Links=rear left etc…
Then what's HA?
08 e550, I see the VR and VL and the SP but also HA.
The thing is, this is not a serviceable part. It seemed obvious that the part you have there is bad. Cleaning the part really won’t do anything and if it does, it would be a very short lived “fix x”
This did not need to be a 13 min video
u
You tañlk like cantinflas
Nothing worse than a total novice trying to teach other novices how to work on cars...ugh
villastrangiato At least he's helping us, what have you done to help us? You know MB gives nothing to their fans. So, shut it. There's a good fella.
hi my name is Edie and i have a 2002 mercedes s430. i have replaced both shocks in the back and the air pump and the release valve. However the rear suspension stil does not come up whie the front comes up with no problem.
You need a shop with the star machine to reset the suspension which is in lockout for those valves.
hi my name is Edie and i have a 2002 mercedes s430. i have replaced both shocks in the back and the air pump and the release valve. However the rear suspension stil does not come up whie the front comes up with no problem.