Airmatic Pump Motor May Fail Due to Sticking Relay on Mercedes-Benz CLS550
Problem overview
A sticking relay, causing the airmatic pump motor to constantly run, may causee the airmatic pump motor to fail or the battery to go dead when the car is shut off. Worn airmatic pump mount bushings can causes noises in the front axle while driving on bumpy roads or a buzzing noise.
49 people reported this problem
23 commentsMercedes-Benz CLS550 vehicles with this problem
6 model years affected
Average mileage: 69,639 miles
(10,000 - 170,000)
Search for another problem
RepairPal ™Car Genius
Ask our experts about your Mercedes-Benz.
RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.
Call us at 877-913-1554
Available 9am – 6pm ET Monday through Friday
