S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Airmatic malfunction?

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Old 03-27-2023, 09:38 PM
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2007 S550
Airmatic malfunction?

Just got this car so this is a little tragic lol

Malfunction light comes on (up arrow in car).
This only happens with the front wheels.
Yesterday it dropped to 0 while parked and when I started the engine got "STOP - car too low"
Turned off and left it for like 20 minutes, came back and started again. This time it rose back up and drove the rest of the day normally.
Today I have noticed the malfunction again and it seems to be riding lower than normal sometimes.
I have also noticed that pressing the button next to the odometer does nothing, and the button itself doesn't light up.

Are there any simple checks I can do at home before going to a shop? Seller told me the equipment is less than a few months old + they're Arnott. Wondering if it could be an electric thing. Is it possible to reset the whole system?
Old 03-28-2023, 12:30 PM
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S500
thousands of posts on this here - level sensors seize - pump over works and wears out - check these - but read posts about where they are and try not to kill yourself
Old 03-28-2023, 12:44 PM
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S500
https://mbworld.org/forums/s-class-w...atic-help.html

just above the top of each front wheel is a similar connecting rod as the picture in this thread - the plastic ball sockets weld themselves to the mild steel ***** with enough force to support a few skyscrapers for breakfast - so the bracket snaps off in the end, beaching the car - before that happens they throw odd behaviours

likely been in that state for months / years and so things get worn, the air bags will fail - but it was the w220 that killed them in just 6 years - the w221 air bags should do 100k and 15 years no issues



.

Last edited by BOTUS; 03-28-2023 at 12:51 PM.
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