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Mercedes Benz R Class 2006 - Suspension air bags #

Posted by Glen Strachan on September 3, 2013, 11:09 am

Year of Manufacture *: 2006

Hi Everyone !
I have an R class that came in for a service a couple of weeks ago and now the driver brought it back saying it is lop sided.
It has airbags on the rear and coil springs on the front and the off side looks too high.

I have tested the airbags with leak detection spray and can't see a leak but I think the nearside is correct and it is the offside too high.
Can anyone let me have the procedure for deflating them as I am worried that this fault is because we had it up on the two post lift for service

Re: Mercedes R Class Suspension Air bags

Posted by aidan birley <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on September 3, 2013, 7:14 pm, in reply to "Mercedes R Class Suspension Air bags"
Aidan Birley

Glen

Talking in general terms rather than specific to R class which I am not familiar with.

The pressure in the bag will be controlled by an electronic control unit and adjust pressure in response to inputs, principally the height sensor.

I would expect to see a height sensor on each side of the rear suspension, do a visual check first to make sure linkage is intact, not bent or been forced over center.

After that you will need it on a scan tool to check out live data & faults.

Cheers Aidan

Re: Mercedes R Class Suspension Air bags

Posted by Glen Strachan <iframe src='https://members4.boardhost.com/ukautotalk/info/user=ukat1463' width='330' height='300' border=0 style='border:none;'> on September 4, 2013, 8:35 am, in reply to "Re: Mercedes R Class Suspension Air bags"

Thanks Aiden
I did have a quick look at the level sensors and one is obviously sitting different to the other.
I wanted to empty all the air out to see if it would pump back up square and was worried about letting the pipes off without knowing if there was a specific procedure for releasing the pressure.

Re: Mercedes R Class Suspension Air bags

Posted by aidan birley <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on September 4, 2013, 8:50 pm, in reply to "Re: Mercedes R Class Suspension Air bags"
Aidan Birley

Hi

Any fault code, what does live data say ?

any options on scanner to activate valves ?

Cheers Aidan

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