Mercedes-Benz ML550 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz ML550

Mercedes-Benz ML550 Problems

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.

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Mercedes-Benz ML550 Questions

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 ...

says timing belt and sparkplugs need to be changed for $950

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Mercedes-Benz ML550 Recalls

Due to a faulty seal around the tail light assembly, water may enter the rear compartment containing the spare tire. The water could damage the lift gate control module, causing it to fail. The failed module could overheat, increasing the risk of a fire. Dealers will update the tail light seals and relocate the lift gate control module. This recall is expected to begin during April of 2009. The Mercedes recall number is 2009030003.

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.

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