Mercedes-Benz CLS550 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz CLS550
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Mercedes-Benz CLS550 ProblemsAirmatic Pump Motor May Fail Due to Sticking Relay
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.
Rear air springs (bellows) may develop leaks, which causes the air pump to run more often to maintain ride height. Our technicians recommend that leaking air springs be replaced.
Due to the size and material used on the brakes of these vehicles, the brakes may start to squeak around the 50 percent wear point. The brake rotor surfaces become uneven, causing a lip to form at the outer edge of the rotor. Because of this, the rotors are usually replaced when the pads are worn (pad life varies depending on driving style and terrain).
Mercedes-Benz CLS550 QuestionsWhat would cause a vibration that seems to be a cabin area vibration. (1 answer)
When I drive the car, starting at about 35 to 80 mph, I get a harmonic cabin vibration for about 35 - 40 miles. It even happens on a newly paved 6 miles stretch of brand new highway. It begins to dissipate the further I drive. On my way home I get no vibration or its very faint no matter the ro...
Mercedes-Benz CLS550 RecallsRubber Engine Compartment Seal Falls Off
The rubber seal that surrounds the engine compartment may become dislodged from the bulkhead area, and fall into the engine compartment. Dealers will replace the rubber seal free of charge to resolve the concern.
The tail lights may not light up on the sides, which can make it difficult to see the vehicle. This fails to comply with federal safety standards. Dealer will update the lighting controller software free of charge to correct the problem.
A rubber seal at the back of the engine bay may stick to the hood and then fall into the engine compartment, possibly contacting hot exhaust components and causing a fire hazard. Dealers will attach additional retainer clips to the rubber seal free of charge to resolve the concern.