w212 2010 550 4matic Airmatic Malfunction Issue
Thread Starter
Newbie
Joined: Feb 2019
Posts: 8
Likes: 3
2010 E 550
w212 2010 550 4matic Airmatic Malfunction Issue
First time on here. I recent purchased a 2010 e550 4matic with 70k on it and love the car. That being said I know I was going to have issues and would work on what repairs I can myself. The issue that recent occurred was the dreaded Malfunction Error for the airmatic suspension. When I purchased the car they told me the front suspension was replaced with new bags and looking at the car it seems to be level and not sagging. The air compressor is not turning on as it used to, so I assume it may be the compressor or the the relay. I checked the fuses in the front and in the trunk and they appear to be ok. Would my next course of action be to just replace the relay before purchasing a new compressor? or would it be prudent just to replace the compressor as well?
I dont feel there is a leak in the suspension due to the lack of sagging. I did notice when I purchased the car that the compressor would go on when I started the car and was not constantly running. Any thoughts to help this novice diagnose the issue?
I dont feel there is a leak in the suspension due to the lack of sagging. I did notice when I purchased the car that the compressor would go on when I started the car and was not constantly running. Any thoughts to help this novice diagnose the issue?
Senior Member
Joined: Nov 2018
Posts: 443
Likes: 69
From: California
2013 E550 4MATIC - P1, P2, SPORT
First thing to do, if you're getting an error is to get an error code scan on it. Either buy your own scanner or get the car to a reputable mechanic to run it.
Senior Member
Joined: Nov 2018
Posts: 443
Likes: 69
From: California
2013 E550 4MATIC - P1, P2, SPORT
Some good reading:
https://mbworld.org/forums/e-class-w...ner-again.html
The short answer is different scanners will provider you with different functionality and different info. Two of the more recommended scanners seem to be Konnwei KW850 and iCarsoft.
https://mbworld.org/forums/e-class-w...ner-again.html
The short answer is different scanners will provider you with different functionality and different info. Two of the more recommended scanners seem to be Konnwei KW850 and iCarsoft.
Senior Member
Joined: Mar 2010
Posts: 293
Likes: 53
From: Hollywood, CA
Tectitgrau S210
Airmatic Malfunction warning is usually regarding the compressor, most likely it cannot reach the 14bar within the 30 second windows, either because it's worn out or the pressure release valve cannot hold 14 bar. These newer style compressors with the soft membrane piston rings last a lot longer than the old style with the plastic rings, so I would say it's probably the pressure release valve not holding. You can get a pressure release valve for around 40-50 bux off Aliexpress, but do your due diligence and test for it before you start ordering parts.
an OBD2 reader is not going to tell you jack-shizz about airmatic fault codes... Get at least an Autel or Launch basic model.
an OBD2 reader is not going to tell you jack-shizz about airmatic fault codes... Get at least an Autel or Launch basic model.
Newbie
Joined: May 2015
Posts: 7
Likes: 0
2010 E550
Airmatic Malfunction warning is usually regarding the compressor, most likely it cannot reach the 14bar within the 30 second windows, either because it's worn out or the pressure release valve cannot hold 14 bar. These newer style compressors with the soft membrane piston rings last a lot longer than the old style with the plastic rings, so I would say it's probably the pressure release valve not holding. You can get a pressure release valve for around 40-50 bux off Aliexpress, but do your due diligence and test for it before you start ordering parts.
an OBD2 reader is not going to tell you jack-shizz about airmatic fault codes... Get at least an Autel or Launch basic model.
an OBD2 reader is not going to tell you jack-shizz about airmatic fault codes... Get at least an Autel or Launch basic model.
