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

airmatic question

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Old 03-03-2015, 09:36 AM
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2006 E55 - obsidian black, all options except pano roof - gone but not forgotten
airmatic question

Hi guys,

I have 2010 s550, 40 k miles. The compressor seems noisy when starting cold, then goes away after 45 seconds or so. Also happens when raising the car level manually ( by pushing the button ). The suscpension seems to work fine, the car raises and lowers as it should. Is this an expected noise or does it mean that the compressor is about to fail?
Thanks!
Old 03-03-2015, 11:33 AM
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W140 Mercedes S350, W221 S550 sport
Our online tech Mike will reply shortly...
Old 03-03-2015, 11:35 AM
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2010 S550 4Matic
Mine has a whine noise at start up. If I move the steering wheel back and forth It changes pitch. yours?
Old 03-03-2015, 12:42 PM
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2006 E55 - obsidian black, all options except pano roof - gone but not forgotten
Originally Posted by SwineHund550
Mine has a whine noise at start up. If I move the steering wheel back and forth It changes pitch. yours?
I haven't tried the steering ..will let u know..
Old 03-04-2015, 12:14 AM
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2006 E55 - obsidian black, all options except pano roof - gone but not forgotten
Originally Posted by SwineHund550
Mine has a whine noise at start up. If I move the steering wheel back and forth It changes pitch. yours?
No, the steering wheel def has nothing to do with it
Old 03-04-2015, 01:32 PM
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Originally Posted by SwineHund550
Mine has a whine noise at start up. If I move the steering wheel back and forth It changes pitch. yours?
At first glance thought this said "MIKE has a whine noise at start up"...LMAO

Hd
Old 03-04-2015, 02:20 PM
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Shouldn't be any audible sound in the cabin from the compressor. It's an S Class for cryin' out loud! It may be an early sign of trouble. As long as you're not getting warnings and the car raises and lowers normally I guess it depends on how noisy it is and whether or not you can live with it. Is there a warranty?
Old 03-05-2015, 12:31 AM
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2006 E55 - obsidian black, all options except pano roof - gone but not forgotten
Originally Posted by Mike5215
Shouldn't be any audible sound in the cabin from the compressor. It's an S Class for cryin' out loud! It may be an early sign of trouble. As long as you're not getting warnings and the car raises and lowers normally I guess it depends on how noisy it is and whether or not you can live with it. Is there a warranty?

Nope, factory warranty ran out in September September.

Yeah, no warnings or any probs just yet...
Old 03-05-2015, 09:33 AM
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Turn your wheel to the right and pull the plastic liner back. Hit the raise button and look into it. Maybe one of the 3 bolts and springs that support is is missing or not secure.
Old 03-05-2015, 11:31 AM
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2006 E55 - obsidian black, all options except pano roof - gone but not forgotten
Will try that, thanks!
Old 03-09-2015, 12:19 AM
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https://mbworld.org/forums/s-class-w...-pump-diy.html

If you end up deciding to replace it, its a not so bad DIY. Only warning is if you live where they use alot of road salt buy a new bracket because the nuts holding the pump on the bracket tend to shear off
Old 03-09-2015, 08:53 PM
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S350 BT 4MATIC
Try to remove using PB blaster first though.

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