2009 Mercedes-Benz GL450 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Mercedes-Benz GL450
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2009 Mercedes-Benz GL450 ProblemsInternal Component Failure May Cause Rough Shifting
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.
An engine Oil leak may develop from the PCV vent housing on the valve cover and/or the inspection plate on the front of the engine.
As a way to increase braking performance, the brake pads and rotors are make of a softer material and may be in need of replacement after approximately 20,000 miles; owners should be vigilant about getting their brakes checked.
2009 Mercedes-Benz GL450 QuestionsMy car lose electricity. What can make that happen ? (2 answers)
I sometimes find my car battery completely empty. I havé replaced the battery 3 times but the problem continues.
The check engine light came on yesterday/
2009 Mercedes-Benz GL450 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.