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).
Resources for the Repair and Maintenance of your 2009 Mercedes-Benz E550
2009 Mercedes-Benz E550
2009 Mercedes-Benz E550 Problems
Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.
The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.
Lack of audio or cell phone functionality may be related to the failure of the audio gateway module.
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.
2009 Mercedes-Benz E550 Questions and Answers
confused about which gear to shift or a miss . Mercedes says nothing wrong dont show up on computer.