GL450 Airmatic Issue
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Newbie
Joined: Aug 2019
Posts: 1
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GL450
GL450 Airmatic Issue
So my GL450 got its passenger side airmatic suspension shocked replaced. I had the problem where the car tilted down on the passenger side awhile ago. About 7 months have passed since it was replaced then all of a sudden I get in the car and the Malfunction indicator comes on. The car isnt tilted down badly or all the way down, but its not as high as it usually is. I have read things about possible fuse blown, get a mercedes code reader, etc... Is anyone else having issues like this? I'm kind of unclear on where to start. Please help
Out Of Control!!
Joined: Sep 2018
Posts: 14,666
Likes: 4,568
From: unbegrenzt
2017 GLE350 4MATIC
Welcome! Please post a photo of the GL. Starting options are: have the codes read at a dealer, or at an independent Mercedes mechanic, at an auto parts store, or buy your own code reader and DIY.
Also search this site, there are a lot of Airmatic threads and posts.
Also search this site, there are a lot of Airmatic threads and posts.
MBWorld Fanatic!
Joined: Jan 2010
Posts: 3,115
Likes: 782
NGL450 w/EORP, S550
Henry,
Welcome. Without a scan tool that can talk to a Mercedes, you're limited to very basic troubleshooting.
These MB specific tools can tell you a multitude of things, such as if the compressor, valve block, central reservoir and its air lines are functioning properly.
Most often, Airmatic issues are traceable back to a leaking air spring. These things are consumables, just like tires.
If the spring leak isn't addressed by changing it out, it will lead to other second order effects - burnt out compressor, stuck relay, sticking valve block etc... so you want to have that addressed stat.
Reading that you have already changed one out, you probably have a leak in the other side (the car will try to level itself), or in the attachment fitting of the one that was replaced. You should not use thread tape on the fittings. The lines require a push in and a firm pull out to properly seat them.
So what I recommend you do is to buy a can of . Raise the car in its elevated position and spray the front air bags. Any leaks will turn the spray liquid into a frothy mess and you'll know. Hose down anywhere there's a line, connection or fitting. Then get under the car (safely) and spray the rears. Let us know what you find out!
Cheers,
Max
Welcome. Without a scan tool that can talk to a Mercedes, you're limited to very basic troubleshooting.
These MB specific tools can tell you a multitude of things, such as if the compressor, valve block, central reservoir and its air lines are functioning properly.
Most often, Airmatic issues are traceable back to a leaking air spring. These things are consumables, just like tires.
If the spring leak isn't addressed by changing it out, it will lead to other second order effects - burnt out compressor, stuck relay, sticking valve block etc... so you want to have that addressed stat.
Reading that you have already changed one out, you probably have a leak in the other side (the car will try to level itself), or in the attachment fitting of the one that was replaced. You should not use thread tape on the fittings. The lines require a push in and a firm pull out to properly seat them.
So what I recommend you do is to buy a can of . Raise the car in its elevated position and spray the front air bags. Any leaks will turn the spray liquid into a frothy mess and you'll know. Hose down anywhere there's a line, connection or fitting. Then get under the car (safely) and spray the rears. Let us know what you find out!
Cheers,
Max
