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

How to check if the airmatic relay has failed

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Old 11-28-2005, 10:01 PM
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C200 Kompressor, S320
How to check if the airmatic relay has failed

Hi, is anyone know how do I check if the relay for the Airmatic has failed. I have been experience some problems with my Airmatic and would like to see if it's just the relay is causing the problem.

Help is much appreciated!
Old 12-02-2005, 08:56 PM
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'04 E320 (W211)
Take it in for service.

I just had the Airmatic repaired on our 2000 S-Class. The whole suspension just simply collapsed. Car kept getting lower and lower everyday until I got the red "Stop, Car too low" message on the readout.

Repair cost me approx.$ 700 for a new pump, relay and fuse. My svc advisor cut me a break since my extended warranty just expired by 500 miles.

Better to bring it in now before it gets much worse.
Old 12-04-2005, 06:46 PM
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2005 S500 4-Matic, 1978 450SL
And airmatic pump failure is sometimes caused by the relay sticking "on" and burning up the pump.
Old 12-05-2005, 01:21 PM
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2011 Sienna SE, 01 S500, 05 LS430 UL
Originally Posted by Skylaw
And airmatic pump failure is sometimes caused by the relay sticking "on" and burning up the pump.
My service advisor did some fine combing 1 month before the warranty expired.
One of the problems he found was the relay was "burning, getting ready to go."
Thankfully for him, he replaced the relays under warranty, along with a new amp, and new antenna? for the homelink because the range was extremely weak.

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