2011 gl550 sagging in font intermittently
Thread Starter
Newbie
Joined: Mar 2016
Posts: 13
Likes: 3
2011 GL550
2011 gl550 sagging in font intermittently
hello, I have a 2011 550 and about a couple weeks ago it all the sudden dropped to the ground in the front. It will happen sometimes when I lock the car and I can hear hissing sound, and feel air releasing from the bottom of the front airbag. I thought it is leaking and need to be changed. However this would not happen all the time. Sometimes the car stays at its hight when I park it and it won't drop, and no air releasing from airbag, even parked overnight. It would also happen when I'm driving in a bumpy road, it would drop and I feel the car ridding real bad, and when I stop, the compressor kicks on and raise the car back up. I bought a iCarsoft MBII on amazon but no code found in Airmatic module, no warning on dashboard.
Last edited by tian8088; Mar 15, 2019 at 03:32 PM.
MBWorld Fanatic!
Joined: May 2015
Posts: 1,932
Likes: 291
From: Allentown, PA
'08 GL 320 CDI
This is a very normal thing to happen with air bags - regardless of what brand car they are on. It's also been talked about to death on here in many, many threads. If you want the long story, search those threads. The short story... replace the bags or the entire assembly (easiest).
Thread Starter
Newbie
Joined: Mar 2016
Posts: 13
Likes: 3
2011 GL550
This is a very normal thing to happen with air bags - regardless of what brand car they are on. It's also been talked about to death on here in many, many threads. If you want the long story, search those threads. The short story... replace the bags or the entire assembly (easiest).
Last edited by tian8088; Mar 15, 2019 at 09:20 PM.
MBWorld Fanatic!
Joined: May 2015
Posts: 1,932
Likes: 291
From: Allentown, PA
'08 GL 320 CDI
That's part of the long answer - did you search for other threads and read up? But, you answered your own question in the first post... you heard/felt air leaking out the bottom. In other words, it's got a hole! I'm not familiar with the voltage readings on the sensors.
Newbie
Joined: Nov 2013
Posts: 9
Likes: 1
From: Atlanta, GA
2010 GL450
I had the same thing happen to me. In my case my front passenger side strut would hiss occasionally and bottom out. It was not consistent and happened randomly. The leak eventually wore out the compressor and I ended up having to replace the compressor and the front passenger airbag/strut assembly. I’d recommend replacing the airbag or the entire airbag/strut assembly (just on the side that’s leaking/hissing) before the compressor gets worn out. As a side note, eventually you’ll have to replace all the airbags/struts on that car. In my case, I had already replace the other three corners over the years. You might want to consider doing both fronts if they are still OEM.
Last edited by skysurfer; Mar 17, 2019 at 02:47 PM.
