2008 Mercedes-Benz ML550 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Mercedes-Benz ML550
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2008 Mercedes-Benz ML550 ProblemsSupplemental restraint system (SRS)/ai bag light may illuminate
The supplemental restraint system (SRS)/airbag light may illuminate due to damaged wires in the steering column. Any damaged wires should to be repaired and protected as necessary from further damage.
The transmission drive selector module may fail resulting in the loss of gear selection capability. This condition can leave the vehicle stranded, and will require replacement of the drive selector module.
The Mercedes Benz ML550 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.
2008 Mercedes-Benz ML550 QuestionsWhen car is warm up steering at low speeds near impossible, What might this be? (1 answer)
When the car is cold steering is very normal. What type of cost and repair will this require. Has anyone else been through this?
I just bought a used 2008 ML 550 with 109,000 mi.
When I drive real slow, ( entering my garage) and try to turn the steering wheel, it takes so much effort that it is almost impossible to turn.
What is the problem?
My rear light would not work even when the bulb was replaced. Dealer says assembly has a grounding problem which the dealer will fix [doing both sides] with a work around but wants around $275 to do so. Is this a design defect or manufacturing defect? Has anyone else experienced this problem? My ...
2008 Mercedes-Benz ML550 RecallsMercedes–Benz Recalls 2008 Vehicles for Defect in Power Steering Oil Pressure Driving Pin
Mercedes–Benz is recalling certain 2008 GL-Class, M-Class, and R-Class vehicles for a possible defect in the driving pin used to control power steering oil pressure. If the pin breaks during normal vehicle turning, the steering assist will no longer operate, causing difficulty operating the steering wheel. Dealers will replace the steering gear in affected vehicles.