air compressor
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Junior Member
Joined: Apr 2015
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From: denver colorado
2001 s500 with amg factory sport package (black)
air compressor
My 2001 s500 seems to have an air compressor not working. This morning I came out and the car seems lower. It is lower. I have lowering links up front and have adjusted the rear link. I did this about 5 months ago and all has been good until today. I was always able to raise the car with the button on the dash but when I push it now it says on the instrument cluster that it's raising but it doesn't move. I can't hear a pump running either. All four corners are low. Any checks I can do to see if the pump is bad? Any help would be great. Also the front bags were replaced by a Mercedes dealer about a year ago. Not sure when the rears were done or at all. I have owned the car for 8 months. Thanks
Member
Joined: Jul 2015
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2005 S500
check to see if you have leaks on the struts.
If I recall there's a thread about how to check if the airmatic compressor is broken. to lazy to search at the moment.
If it is the compressor shop around bc that thing is not cheap. Also check youtube for tutorials on doing the fix.
Im waiting for mine to take a dump, so I can upgrade to airrex suspension and accuair lol
If I recall there's a thread about how to check if the airmatic compressor is broken. to lazy to search at the moment.
If it is the compressor shop around bc that thing is not cheap. Also check youtube for tutorials on doing the fix.
Im waiting for mine to take a dump, so I can upgrade to airrex suspension and accuair lol
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From: denver colorado
2001 s500 with amg factory sport package (black)
I don't think the struts are bad because all four corners went down. I need to locate air pump fuse or find out if you can reset that system
Member
Joined: Jul 2015
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2005 S500
I forgot which box it is but if im not mistaken the fuse is in the front jsut cant remember if its on the right or left side.
try and take out the lead to your battery chill for like 5 minutes or more then hook it back up and see if that works.
try and take out the lead to your battery chill for like 5 minutes or more then hook it back up and see if that works.
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Joined: Sep 2013
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2000 s500
ssfisher, You might have a pump problem. I have a similar problem and I just posted my own thread. My pump though comes on and the car only rises when I drive. If I drive with raise button on It rises all the way up but not when its still. The front drops after 8 hours then the back after more then 24hours. Could I have a pump problem?
Senior Member
Joined: Apr 2012
Posts: 432
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From: Just north of Detroit,Michigan
2012 E350 4Matic P2
Check the attached fuse chart. In the right front fuse box, fuse #32 and relay "O" are directly related to the air pump. The relay itself, (O) is a known failure item but my understanding is that it usually fails in the closed position resulting in the pump running endlessly which destroys the pump motor.
Lowering links should have no affect on the pumps operation as the pump runs according to demands of height sensors. As earlier suggested, removing battery power and letting all systems reset might get things reordered.
Good Luck,
Bob
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Former Vendor of MBWorld
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From: Merritt Island, Florida
MERCEDES-BENZ CL-CLASS
Arnott OES Air Suspension Compressor
Actually, Arnott only sells new compressors. In the case of the W220 compressor it is a new WABCO unit. All of Arnott's OES pumps come with a Limited 2-Year Warranty.
https://www.arnottindustries.com/par...40_gid541.html
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Thread Starter
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From: denver colorado
2001 s500 with amg factory sport package (black)
Thanks for the info. The fuse was good, relay also good. I disconnected the battery for 10 minutes and when I reconnected it the problem was still there. So I got access to the pump and no obvious wiring or hose issues. I wanted to see if the pump would run on external power so I pulled the power connector apart and found the positive pin and socket was severely corroded. They were not making good connection or any connection at all. I cleaned both the pin and socket and put stabalant 22 on them. Reconnected and it works fine now. I'm going to get another waterproof connector and replace the factory one because the socket is still pretty bad, but will be fine for a few days until I get one. Thanks for all the help here on the forum.
Scott Fisher
Last edited by ssfisher; Sep 21, 2015 at 11:11 PM.
Thread Starter
Junior Member
Joined: Apr 2015
Posts: 70
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From: denver colorado
2001 s500 with amg factory sport package (black)
ssfisher, You might have a pump problem. I have a similar problem and I just posted my own thread. My pump though comes on and the car only rises when I drive. If I drive with raise button on It rises all the way up but not when its still. The front drops after 8 hours then the back after more then 24hours. Could I have a pump problem?
