Mercedes-Benz E550 4MATIC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz E550 4MATIC
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Mercedes-Benz E550 4MATIC ProblemsAirmatic Pump Motor May Fail Due to Sticking Relay
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.
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).
The Mercedes Benz E550 4Matic may have engine oil seeping or leaking from the back of the cylinder heads. This is commonly misdiagnosed as leaking valve covers.
On the back of the cylinder heads there are three, in total, plastic expansion plugs that plug access ports to the camshafts. These plugs are well known for seeping oil, and leaking if left unattended. The oil will run down the back of the engine and eventually make it to the ground.
Replacement of these three plastic plugs is extremely simple, and should be done as regular maintenance. The recommended interval for replacement is every 60,000 miles.
Mercedes-Benz E550 4MATIC QuestionsMy car has 77000 miles; how much is considered acceptable oil consumption? (1 answer)
I use it for commuting and there is a fair amount of stop-and-go driving.
car alarm keeps going off. keyless entry does not work sometimes.
Mercedes-Benz E550 4MATIC RecallsDriver's Frontal Air Bag Inflator Ruptures And Sprays Metal Fragments
The driver's frontal air bag inflator may deploy the air bag with excessive pressure, resulting in the inflator rupturing and causing metal debris to be sprayed onto vehicle occupants. Dealers will replace the driver's frontal air bag module free of charge to resolve the concern.
Mercedes Benz is recalling 2010 C-Class, model 204; E-Class, model 212; and 2010–2011 E-Class Coupe/Cabriolet, model 207 vehicles due to a loss of power steering fluid that could result in power steering system failure. Owners may not have sufficient control of the vehicle in areas like parking lots, thus increasing the chance of a crash. Dealers will check and re-torque the connection fitting, free of charge.