Airmatic compressor always running
05-09-2020, 12:25 PM
#1
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2102 GL450
Airmatic compressor always running
I have a 2012 GL450 with the airmatic suspension compressor constantly running. All four airbags are new and are not leaking. The relay has been replaced with a brand new relay. I noticed that the air intake line was broken off and I reconnected it. Is there anyway of finding out why it constantly runs? there are no leaks in the system and it is not sagging on any shock.
05-09-2020, 01:17 PM
#2
I have a 2012 GL450 with the airmatic suspension compressor constantly running. All four airbags are new and are not leaking. The relay has been replaced with a brand new relay. I noticed that the air intake line was broken off and I reconnected it. Is there anyway of finding out why it constantly runs? there are no leaks in the system and it is not sagging on any shock.
does your car goes to other height positions and remains there ? if yes that means your pressure sensors are ok
05-10-2020, 12:27 AM
#3
Super Member
When you say that it runs all the time......... do you mean from the moment the key is turned on the pump comes on and it never shuts off???
11-11-2023, 05:07 PM
#5
This is how I would approach this.
1. Make sure the car is on level ground
2. Remove the fuse for the air compressor
3. Monitor ride height on level ground for a day or two
If the ride height stays the same, you could probably exclude a leak from your compressor, valve block, air lines, and front & rear airbags from this issue
The next step would be to monitor your right height sensors and linkages. This is usually done with a scan tool viewing all 4 ride height readings, as well as visually inspecting them for defects such as seizing.
If the ride height sensors and linkages are okay, you could probably exclude height sensors from this issue.
These two procedures narrow down common fault areas relating to the OP's description, given that the GL's electrical integrity hasn't been compromised.
1. Make sure the car is on level ground
2. Remove the fuse for the air compressor
3. Monitor ride height on level ground for a day or two
If the ride height stays the same, you could probably exclude a leak from your compressor, valve block, air lines, and front & rear airbags from this issue
The next step would be to monitor your right height sensors and linkages. This is usually done with a scan tool viewing all 4 ride height readings, as well as visually inspecting them for defects such as seizing.
If the ride height sensors and linkages are okay, you could probably exclude height sensors from this issue.
These two procedures narrow down common fault areas relating to the OP's description, given that the GL's electrical integrity hasn't been compromised.
