R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

cold weather airmatic failure

Old Dec 13, 2010 | 07:16 PM
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r500
cold weather airmatic failure

very cold weather in Illinois the past two days.......I had not driven my R for 3 days, went out to garage and saw that my front airmatics had gone out....I started the car, and the front went back to normal.......called local Mercedes tech and he said that there was nothing to worry about as long as there were no messages on the dash (which there weren't).....I think it is the first sign of my front end suspension going out......any thoughts?
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Old Dec 13, 2010 | 08:29 PM
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From: Chandler, AZ
06 R500 / 03 CLK430 Conv
Originally Posted by Zoweee
very cold weather in Illinois the past two days.......I had not driven my R for 3 days, went out to garage and saw that my front airmatics had gone out....I started the car, and the front went back to normal.......called local Mercedes tech and he said that there was nothing to worry about as long as there were no messages on the dash (which there weren't).....I think it is the first sign of my front end suspension going out......any thoughts?
How many miles?
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Old Dec 13, 2010 | 08:55 PM
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2006....55000 miles
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Old Dec 13, 2010 | 11:16 PM
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06 R360, 06 F350 6.0, 04 CayenneS, 96 911TT 500HP, 86 928S, 74 911S, 73 914-4, 70 914-6, 02 Durrango
3 days???????????????????? now way should that be "nothing to worry about"......
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Old Dec 14, 2010 | 12:19 AM
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From: Chandler, AZ
06 R500 / 03 CLK430 Conv
Originally Posted by Zoweee
2006....55000 miles
I'd say you're entering into the mileage range where the struts become prune to leaking. The cold makes it more difficult for the seal to do it's job.

If it doesn't drop every night then you could put off changing the strut for a while, but each time the car needs to rise means work for the compressor, too much work and that will fail too.
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Old Dec 14, 2010 | 10:56 AM
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06 R360, 06 F350 6.0, 04 CayenneS, 96 911TT 500HP, 86 928S, 74 911S, 73 914-4, 70 914-6, 02 Durrango
I have 38,000. Do you think I can talk to my dealer about getting them replaced before mine go bad? Does Mercedes have an "updated" part that replaces them?
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Old Dec 14, 2010 | 10:29 PM
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2011 C300 4matic, 2015 Porsche Macan S, 2006 R500 (sold)
Originally Posted by Zoweee
very cold weather in Illinois the past two days.......I had not driven my R for 3 days, went out to garage and saw that my front airmatics had gone out....I started the car, and the front went back to normal.......called local Mercedes tech and he said that there was nothing to worry about as long as there were no messages on the dash (which there weren't).....I think it is the first sign of my front end suspension going out......any thoughts?
Sorry, your situation is almost exactly like mine and it was replaced by the dealer.

https://mbworld.org/forums/r-class-w...ic-failed.html

https://mbworld.org/forums/r-class-w...-warranty.html

Last edited by supernsx; Dec 14, 2010 at 10:33 PM.
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Old Dec 16, 2010 | 07:37 PM
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update

called again because it happened again...front end low, rear normal.....but this time when I unlocked the car, the front end went up without starting it....called my tech again because this time there was a loud pop as it was going up....he said that because of the cold weather and the warm air that the compressor puts out, there is moisture developing in the lines that are not allowing the seals on the airmatic to do their sealing......he said the only way to check and see if it was the temperature causing it would be to park the car in their garage...constant temp of 70 and see if it happens then....so now I need advice and strategy to have these seals replaced while my extended warranty is still covering it.
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Old Dec 17, 2010 | 07:32 PM
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From: Chandler, AZ
06 R500 / 03 CLK430 Conv
Originally Posted by Zoweee
called again because it happened again...front end low, rear normal.....but this time when I unlocked the car, the front end went up without starting it....called my tech again because this time there was a loud pop as it was going up....he said that because of the cold weather and the warm air that the compressor puts out, there is moisture developing in the lines that are not allowing the seals on the airmatic to do their sealing......he said the only way to check and see if it was the temperature causing it would be to park the car in their garage...constant temp of 70 and see if it happens then....so now I need advice and strategy to have these seals replaced while my extended warranty is still covering it.
My advice is if you are covered under warranty, take the vehicle into a MB dealer and get them to diagnose and fix the problem.
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Old Dec 20, 2010 | 10:26 PM
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2011 C300 4matic, 2015 Porsche Macan S, 2006 R500 (sold)
Originally Posted by Zoweee
called again because it happened again...front end low, rear normal.....but this time when I unlocked the car, the front end went up without starting it....called my tech again because this time there was a loud pop as it was going up....he said that because of the cold weather and the warm air that the compressor puts out, there is moisture developing in the lines that are not allowing the seals on the airmatic to do their sealing......he said the only way to check and see if it was the temperature causing it would be to park the car in their garage...constant temp of 70 and see if it happens then....so now I need advice and strategy to have these seals replaced while my extended warranty is still covering it.
It is broken. Replace it while it is being covered by your warranty.
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Old Dec 28, 2010 | 11:54 AM
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Mercedes Benz S 550
i don't think so . in the cold if u leave out your vehicle for some time u do get minor issues like this most of the times. so no need to worry about the suspension.
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Old Dec 28, 2010 | 01:47 PM
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2011 GL450, '06 R500 traded, '08 ML350 sold
Originally Posted by anjy834u
i don't think so . in the cold if u leave out your vehicle for some time u do get minor issues like this most of the times. so no need to worry about the suspension.
This isn't minor. He has a suspension leak.
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Old Jan 1, 2011 | 04:12 PM
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although the car has not lowered for the past week, it is going in next week to repair the suspension leak....extended warranty through chrysler covers it.........also seems that the rear suspension has been unusually stiff lately......could be just me paying more attention to ride quality lately.
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Old Jan 16, 2011 | 10:56 PM
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2005 MINI Cooper S Conv, 2006 R350
couldn't get the front up

It started when the weather got cold here late last year, that I noticed the front of the car was low to the floor in the morning. It got back up once I started the car, so I thought this was a feature that I didn't know before ... until today, it couldn't get the front up anymore, so I had to drive very slow home about 5 miles with the low front.

I dont have warrenty on my 2006 R350 with only 46k miles, so I plan to order from Arnott and then DIY for both front struts. Anything I should know of before ordering the parts? and how easy is it to DIY? Do I have to remove the half shalf?

Thanks ...
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Old Jan 17, 2011 | 07:28 PM
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Ordered two structs from Arnott, went by a local shop and asked, but they wouldn't do the replacement for me, I guess I will have to search and try to do it myself.
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Old Jan 17, 2011 | 10:10 PM
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From: Chandler, AZ
06 R500 / 03 CLK430 Conv
Originally Posted by ste
It started when the weather got cold here late last year, that I noticed the front of the car was low to the floor in the morning. It got back up once I started the car, so I thought this was a feature that I didn't know before ... until today, it couldn't get the front up anymore, so I had to drive very slow home about 5 miles with the low front.

I dont have warrenty on my 2006 R350 with only 46k miles, so I plan to order from Arnott and then DIY for both front struts. Anything I should know of before ordering the parts? and how easy is it to DIY? Do I have to remove the half shalf?

Thanks ...
Here is a link to the best DIY guide I could find, it's for a 2WD E-Class though.

I chickened out of the DIY as I wasn't sure whether I could work around the half shaft or not. I paid about 2hrs labor per side at my local indy. If you are serious about DIY, consider signing up for a day on Mercedes StarTek, and download the procedure.
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Old Feb 7, 2011 | 02:44 PM
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This is very frustrating ... I took the car to a local garage with the new structs, the guy told me I have a bad airmatic valve, the structs are good. After he replace the valve, the car still couldn't rise up, towed to MB dealer, was told a bad compressor, the structs are good, no leaks. Replaced the compressor and took it home, returned the structs (Arnott charges 20% restocking fee). Two days later, the front car is down again. Took the car back to dealer, after couple days, was told it has no problem (no leak, no error code). Took it home, two days later, it became worse, now its front sit down almost each time I park the car! I do regret a lot getting an airmatic car. This is painful in $ and emotion.
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Old Feb 7, 2011 | 03:49 PM
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2011 C300 4matic, 2015 Porsche Macan S, 2006 R500 (sold)
Originally Posted by ste
This is very frustrating ... I took the car to a local garage with the new structs, the guy told me I have a bad airmatic valve, the structs are good. After he replace the valve, the car still couldn't rise up, towed to MB dealer, was told a bad compressor, the structs are good, no leaks. Replaced the compressor and took it home, returned the structs (Arnott charges 20% restocking fee). Two days later, the front car is down again. Took the car back to dealer, after couple days, was told it has no problem (no leak, no error code). Took it home, two days later, it became worse, now its front sit down almost each time I park the car! I do regret a lot getting an airmatic car. This is painful in $ and emotion.
Sorry to hear about those troubles. Definitely agree with you about airmatic. I don't feel like it is really much benefit by having it.
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Old Dec 15, 2011 | 02:23 AM
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I noticed a problem at 65000 miles with my R500 rear driver side suspension leaking when it started getting cold without any error codes. the dealer here in korea do not service r class so i am really in trouble. I see arnott has the bags for the rear, but no mention of valves or compressor...or DO I NEED TO ONLY REPLACE THE BAGS (is what i hope). please advise folks, what is my best course of action.
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