airmatic issues. short pump op and rear spring clicks
Thread Starter
Super Member
Joined: Nov 2004
Posts: 687
Likes: 26
From: So Cal
07 GL450, 91 NSX, 12 Prius
airmatic issues. short pump op and rear spring clicks
Hello,
Im having issues with my airmatic system 2003 E500. The car will not raise up. mostly in the rear. but front is also lower than before.
I replaced the valve block and compressor. Still not raising to proper levels.
I replace the compressor but what i notice is the compressor comes on then shut down rather shortly.
Also I hear clicking on the rear air spring which are Arnott replacements. sounds like some type of electric relay or valve sound.
displays shows airmatic visit workshop.
I did not replace the compressor air filter will that come in play with the issues?
Thanks.
Im having issues with my airmatic system 2003 E500. The car will not raise up. mostly in the rear. but front is also lower than before.
I replaced the valve block and compressor. Still not raising to proper levels.
I replace the compressor but what i notice is the compressor comes on then shut down rather shortly.
Also I hear clicking on the rear air spring which are Arnott replacements. sounds like some type of electric relay or valve sound.
displays shows airmatic visit workshop.
I did not replace the compressor air filter will that come in play with the issues?
Thanks.
Member
Joined: Feb 2017
Posts: 248
Likes: 36
From: L.A., Moscow, NYC, San Diego, Baja
1998 E320 Wagon, 2003 W211 E500, 2003 W211 E500, 1999 W210 E55 AMG
Hello,
Im having issues with my airmatic system 2003 E500. The car will not raise up. mostly in the rear. but front is also lower than before.
I replaced the valve block and compressor. Still not raising to proper levels.
I replace the compressor but what i notice is the compressor comes on then shut down rather shortly.
Also I hear clicking on the rear air spring which are Arnott replacements. sounds like some type of electric relay or valve sound.
displays shows airmatic visit workshop.
I did not replace the compressor air filter will that come in play with the issues?
Thanks.
Im having issues with my airmatic system 2003 E500. The car will not raise up. mostly in the rear. but front is also lower than before.
I replaced the valve block and compressor. Still not raising to proper levels.
I replace the compressor but what i notice is the compressor comes on then shut down rather shortly.
Also I hear clicking on the rear air spring which are Arnott replacements. sounds like some type of electric relay or valve sound.
displays shows airmatic visit workshop.
I did not replace the compressor air filter will that come in play with the issues?
Thanks.
Thread Starter
Super Member
Joined: Nov 2004
Posts: 687
Likes: 26
From: So Cal
07 GL450, 91 NSX, 12 Prius
did the filter pull and soapy water test. not leak there and no change. Towing to shop. the rear has completely deflated. once i get the confirmation it is the arnott spring, shop will work with me in getting the rerturn/replacement.
Member
Joined: Jul 2017
Posts: 210
Likes: 25
From: Lake Wylie, SC
E500 Wagon, SL63 IWC, E450 Wagon
pump issues
Did you replace the compressor with a brand new one? If not, you should also look at the pump piston and cylinder to see if the piston has scored the walls. I recently ordered a "2018" manufactured dated OE pump off ebay. It would not pass the 40 bar test in das. I could not believe it. Took it apart and the piston had scored the cylinder wall so badly it would not build pressure and actually pushed air out of the air intake line. So someone had exchanged the pump parts to make it look newer. I could not return the pump, so I rebuilt my original pump with good parts, and now it holds pressure.
You should also ensure the rear level sensor did not become bent or damaged.
Good luck with diagnosis.
You should also ensure the rear level sensor did not become bent or damaged.
Good luck with diagnosis.
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Junior Member
Joined: Sep 2020
Posts: 15
Likes: 2
From: California
1980 Mercedes 450SL, 2005 Mercedes e320 CDI, 2014 Mercedes e63s
In my experience with the airsuspension, if the air compressor is turning on for only a few seconds the computer isn't getting the information it needs to fill it all the way. When raising the car with the suspension it needs to be pretty close to ground level for it to fill up. If you still get the same result it may be the rear ride height sensor. Its a lot easier to figure out with a scanner. The compressor also needs read that the system is holding the correct amount of air which I believe is somewhere around 14 Bars. Also with the rear springs the connectors can get dirty and will not make a good connection. I hope this helped.
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Member
Joined: Dec 2021
Posts: 192
Likes: 50
E350 4matic Wagon
MB Service
On the airmatic, MB Benz service best. You probably have some wiring corrosion above the compressor in the wheel housing that you can’t see. This is one of those jobs i now prefer to let the pros handle. You already replaced the compressor and air bladders (?) and you still have a problem. Usually Mercedes replaces the relays at the same time. So, probably corroded wiring above compressor which delivers air after the relay box that signals which bladders need air.
