Airmatic Pump Motor May Fail Due to Sticking Relay on Mercedes-Benz S600

The relay which turns the airmatic suspension pump on may fail causing the pump to run continuously. This can result in failure of the pump motor or a dead battery as the pump motor will continue to run after the car is turned off. Also, Worn airmatic pump mount bushings can causes noises in the front axle while driving on bumpy roads or a buzzing noise while the pump is running.

RepairPal Verified
Average mileage: 108,500 (105,000–112,000)
10 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007, 2008, 2009, 2010
12 people reported this problem
2 people shared problem details
Malfunction indicator on display. S class car suspension dropped completely over the course of 2 or 3 days. Replaced blown 40 amp fuse and car returned to normal height. Actually seemed higher than normal. Fuse blown again after 1 day. Will purchase new relay and retry...
abc pump replacement cost 2k! car sits low.
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