S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

2001 s500 airmatic rear left

Old May 31, 2019 | 04:14 PM
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2001 Mercedes Benz s 500
2001 s500 airmatic rear left

Today I went for drive and I noticed the rear left side was making a loud hissing noise and it was sitting lower than normal any badly have any idea why this is happening???
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Old May 31, 2019 | 08:18 PM
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
Most likely cause is that the flexible fabric/rubber rolling diaphragm in the left rear suspension strut has failed, requiring strut replacement.

You can purchase a rebuilt strut with a lifetime replacement warranty from Arnott. Installation is within the capabilities of a reasonably experienced DIY mechanic. There are numerous videos on YouTube.

More information is available here https://w220.ee/Airmatic
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Old Jun 5, 2019 | 06:52 PM
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2001 s500, 2005 SLK55
This happened to my 2001 S500 a few months ago, but on the rear passenger side. You'll need to replace the strut - if you get up inside the old strut between the outer and inner sections you can dab a little soapy water on the rubber bellows and you'll see where the air is leaking out.

Best price for a reman Arnott strut I found was from Rock Auto, around $250 plus $50 core charge.

It took me about 2 hours to replace with minimal tools.
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