Air sus comp turns back on after reaching max height
#1
Thread Starter
Junior Member
Joined: Oct 2018
Posts: 71
Likes: 28
Benz: 560 SEC, 2011 GL550 and other brands
Air sus comp turns back on after reaching max height
Hey guys, my 2011 GL550 last few months has this strange airmatic issue.
Car sits level for a week no issues, I can leave it at max raised height, also stays there. No leaks.
However if I go to lift it, it will reached raised level. Compressor will shut off, but then will turn back on again within 5 seconds and run until it shuts off due to over temp.
SnapOn solus scanner did not show any air matic faults.
Any ideas?
I don't know the logic of the airmatic controller. Does it go to raised height, shuts off based on system pressure, then looks at heights? Do I need to recalibrate the height sensors?
Car sits level for a week no issues, I can leave it at max raised height, also stays there. No leaks.
However if I go to lift it, it will reached raised level. Compressor will shut off, but then will turn back on again within 5 seconds and run until it shuts off due to over temp.
SnapOn solus scanner did not show any air matic faults.
Any ideas?
I don't know the logic of the airmatic controller. Does it go to raised height, shuts off based on system pressure, then looks at heights? Do I need to recalibrate the height sensors?
#2
Thread Starter
Junior Member
Joined: Oct 2018
Posts: 71
Likes: 28
Benz: 560 SEC, 2011 GL550 and other brands
A guy I just spoke to had the same thing:
Said one height sensor had a dead spot in it.
With buddies snapon canner I can see voltages of each sensor, and can raise/lower each corner individually. Ill play around with it and see what I can find.
Said one height sensor had a dead spot in it.
With buddies snapon canner I can see voltages of each sensor, and can raise/lower each corner individually. Ill play around with it and see what I can find.
#3
Thread Starter
Junior Member
Joined: Oct 2018
Posts: 71
Likes: 28
Benz: 560 SEC, 2011 GL550 and other brands
I ended up ordered a Star C5 off a forum member here...well know soon enough exactly whats going on.
Im going to inspect the rear accumulator tanks tonight.
Im going to inspect the rear accumulator tanks tonight.
#6
Thread Starter
Junior Member
Joined: Oct 2018
Posts: 71
Likes: 28
Benz: 560 SEC, 2011 GL550 and other brands
Not yet. Scanner should be in next week. Will see what I can find then. I did a comprehensive leak check with soapy water over the weekend. Nothing to note at each bag and connection, air tanks, valve block, or compressor.
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#8
Thread Starter
Junior Member
Joined: Oct 2018
Posts: 71
Likes: 28
Benz: 560 SEC, 2011 GL550 and other brands