Damn air suspension
Thread Starter
Newbie
Joined: Feb 2019
Posts: 2
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2002 S430
Damn air suspension
Hello everyone I'm new here so go easy lol... I have a 2002 S430 and my car lowered one day and hasn't been raised back up. I checked relays checked for leaks etc...I hear the compressor kick on but car does not raise...any idea what the issue is ?
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,473
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
If you take the time to learn how the system works, and what each part does, it is a simple, easy-to-service system that works very well.
If one strut fails, that corner will be down. If the relay fails, the compressor doesn't run, or doesn't stop running. If all four struts drop, you need to look at those things that affect the entire system. Some possibilities include (but are not limited to) broken air line from the compressor to the reserve tank or to the valve block; compressor running, but not pumping, computer not calling for air, computer failed, etc., etc., etc. It is very unlikely that one of us can tell you exactly what the problem actually is.
Perhaps this would help...
https://w220.ee/Airmatic
If one strut fails, that corner will be down. If the relay fails, the compressor doesn't run, or doesn't stop running. If all four struts drop, you need to look at those things that affect the entire system. Some possibilities include (but are not limited to) broken air line from the compressor to the reserve tank or to the valve block; compressor running, but not pumping, computer not calling for air, computer failed, etc., etc., etc. It is very unlikely that one of us can tell you exactly what the problem actually is.
Perhaps this would help...
https://w220.ee/Airmatic
Super Member
Joined: Jun 2018
Posts: 533
Likes: 39
From: Northern Hemisphere - Chicago
fleet
you need to pull the code to see whats going on. you can test each component with a scanner as the BAR pressures are very high during the self test and have to fall within certain paremeters and hold the pressure. like the reservoir, or the compressor, or the valve block all can be tested with the right scanner
its all complicated and I barely understand it
you need a scanner or some other way I am not aware of?
its all complicated and I barely understand it
you need a scanner or some other way I am not aware of?
Super Member
Joined: Jun 2018
Posts: 533
Likes: 39
From: Northern Hemisphere - Chicago
fleet
have you tried driving it (even if low) just to click on the compressor. I used to put mine in storage and it was squating (later found out both struts leaking), but compressor did not turn on for like a quarter mile after I drove
