GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

airmatic malfunction

Old 03-07-2015, 09:03 PM
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mercedes gl550
airmatic malfunction

hello new to this I own a 2008 gl550 the airmatic malfunction symbol is on and the left side is dropped I have replaced all suspension with airrnott im thinking air pump when you open the door it dosent level out or nothing pl help I hate the dealers
Old 03-07-2015, 10:30 PM
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Originally Posted by kgl550
hello new to this I own a 2008 gl550 the airmatic malfunction symbol is on and the left side is dropped I have replaced all suspension with airrnott im thinking air pump when you open the door it dosent level out or nothing pl help I hate the dealers
Either one of your replaced arnotts is leaking or your valve block is bad.

If you press the "raise" button does the truck raise? If it does the pump is good. If it doesn't the pump might have gone bad- if it is the original and your truck is an 08- it is about time.
Old 03-10-2015, 10:10 PM
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GL 320 CDI
Fully agree with what alx say. Happened to me and now I got 4 x new air shocks and 1 new AMK pump. All working fine now.

1 of my front shock at drive side (right, because I am in Australia) is sending back to Arnott and waiting for a refund due to air leaking.
Old 03-14-2015, 04:45 AM
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GL 500
hi all.. i am new in forum.. i have 2007 GL500.. same malfunction symbol has been shown in my dashboard also..so what is the exact reason for that malfunction symbol? i have read too many topic for that problem.. but i could not see any exact reason.. right front side of my car is down right now.. but sometimes driving time it is raising.. and in an half an hour or 1 hour or in a several times its going down again.. and that symbol is coming to board.. i have read something and i ordered shock absorber for front side.. i dont know it will solve the problem or not.. but i want to know the exact reason of that.. i hope some of you can help me on that.. thanks..
Old 03-14-2015, 02:04 PM
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2007 W211 E350 4Matic / 2008 X164 GL320 CDI
Bad right front spring.
Get it replaced before you need a new pump.
Old 03-15-2015, 02:06 AM
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thanks N_Jay.. shock absorber will come with air spring.. i hope it can be solved..
also do you have any idea for to change shock absorber / air spring for a single side? many of people say shock absorber / air spring has to be changed both side at the same time.. is it really true? do you have any info for that?.. thanks..
Old 03-15-2015, 07:50 PM
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2007 W211 E350 4Matic / 2008 X164 GL320 CDI
Many people say so, but don't find many good sources saying so.


MB replaces one side at a time. Arnott says one side is ok, and also has a kit for just the airspring without the shock.

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