Mercedes-Benz E550 Problems

Airmatic Pump Motor May Fail Due to Sticking Relay on Mercedes-Benz E550

Problem Description and Possible Solution

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.

(9 people reported this problem)

Mercedes-Benz E550 Vehicles With This Problem

RepairPal Verified
Average mileage: 43,666 (37,000–53,000)
4 model years affected: 2007, 2008, 2009, 2010
Not Your Mercedes-Benz E550 Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
Learn About Your Car Problems
Search For a Specific Car Problem
Viewing 1-4 of 4 comments
My car keep saying Stop car is to low. It lean more in the front. The red warning light comes on and now it stays on.. over all the car runs great
Airmatic pump failed and was NOT covered by warranty. Also, left the suspension selector in Sport mode while the car was parked in the garage for 3 weeks which required the battery to be replaced at 28,000 miles. The MB repair service acknowledged the issue.
The Airmatic Pump Motor was running continuously and had to be replaced due to damage. Fortunately, it was still under warranty.