Help me fix my Airmatic please
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 43
Likes: 3
2011 S550 4Matic
Help me fix my Airmatic please
Malfunction warning appeared on the display last night. When I slowed I could hear occasional scraping on the right side. When I stopped to check it out the right side was noticeably lower on the right side. When I hit the raise up button the car went up except for the front right. Rear left went way up. I crawled home & in the morning i could see that the front right was really low. I found the compressor & valve assembly under the trunk. When I turn the car on I can hear the compressor running & i don't hear any leaks from the valve assembly. The car raised up & I drove it around the block, while idling I measured the right side to be 1/2 inch lower than the left. When parked & turned off, I can hear air escaping near the front right. not by the wheel, but from the battery box. when I removed the box cover, the sound was stronger.
2010 E550 4matic 55k miles
Renntech lowering module
Thanks
2010 E550 4matic 55k miles
Renntech lowering module
Thanks
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 43
Likes: 3
2011 S550 4Matic
I see the air line from the top of the strut going under the battery tray, is there a connection under there that might be leaking? I lifted the strut cover while the air was escaping, i cant hear or feel any air coming from that area. I'm trying to get the battery tray out today
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Joined: Oct 2011
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From: Athens, GA USA
2011 E63, 2011 Hyundai Genesis 4.6 v8, 2013 GMC Denali XL, 1965 Ford Mustang, 2005 Merc. E500
I think it may mean you need to get at least one new front air strut. I always replace mine in pairs. A spray bottle of soapy water is a good way to find a leak. You may need to jack the car up some on the low corner. Don't drive the car, you can damage other components.
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,900
Likes: 210
From: Sacramento , CA
2010 e550 p2
here is what usualy wears off and air is leaking from there , im sure in your case its the same thing , as it looks like a common issue with these struts , i have a left one ebay for sale and i get a lot of inqueries about it from 10-11 550 owners.
u can send it to get it remanufactured (florida)
or buy a remanufactured one , buy used one , or new one...
if you can deal with cars you can even change it yourself , since its not that hard , just gotta have the right tools and common sense to save some $$$
u can send it to get it remanufactured (florida)
or buy a remanufactured one , buy used one , or new one...
if you can deal with cars you can even change it yourself , since its not that hard , just gotta have the right tools and common sense to save some $$$
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 43
Likes: 3
2011 S550 4Matic
I got the battery tray out & found that the air line is wrapped with a part of the wiring harness. I unwrapped the harness & pulled the air hose out little by little until I found a hole. I'm still confused as to how this worn spot came to be, but happy that i found it & easy to fix.
Looks like it was melted?
Wire Harness
Repair, silicone hose
Heavy duty thermal wrap from DEI
Looks like it was melted?
Wire Harness
Repair, silicone hose
Heavy duty thermal wrap from DEI
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MBWorld Fanatic!
Joined: Oct 2011
Posts: 1,084
Likes: 68
From: Athens, GA USA
2011 E63, 2011 Hyundai Genesis 4.6 v8, 2013 GMC Denali XL, 1965 Ford Mustang, 2005 Merc. E500
This is a new one on me. Good job finding the problem. I had a Mazda 1990 MX5 miata a few years back and it would not start. The indie shop had it a week trying to find out why. Turned out to be a small broken wire on a small circuit board connected to the MAF. The tech laughed about the fact that such a small thing kicked his *** for a week. Sometimes it is something small and a simple repair but hard to find.
Thread Starter
Junior Member
Joined: Nov 2013
Posts: 43
Likes: 3
2011 S550 4Matic
The sound of air escaping in the engine bay led me away from the strut. The line goes into the firewall, the part that I would have been able to inspect was small. i'm not sure what I would have done if it wasn't there.
