Mercedes-Benz GL550 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz GL550
Never overpay. Check prices with our estimator
Ask a mechanic in our community
Our experts translate recalls into plain English
Mercedes-Benz GL550 ProblemsTransmission May not Shift into Drive Due to Failed Selector Module
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 GL550 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 GL550 QuestionsFront headlight stuck sideways "active headlamps inoperable" (1 answer)
The front driver side headlight is stuck to the side and not facing forward. Getting a error message of "active headlamps inoperable". I was wondering if there is a quick fix to this or you need to replace the entire headlight unit?
Iwe came back from out of town appro. 250 miles a the code came up that nite. Also with a milfuction code!
Mercedes-Benz GL550 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.
Seat belts are secured to the vehicle body at various points using special anchor bolts. These 2013 GL models are being recalled because the anchor bolts for the second row seat belts may not have been tightened correctly during vehicle assembly. If these bolts are loose, a belted occupant my not be properly restrained in the event of a crash, increasing the risk of personal injury. Dealers will inspect the affect bolts and tighten them as necessary.
Mercedes-Benz is recalling 2009 550 G-Class models due to fuel line quick connectors that were not properly connected on the assembly line. In case of a frontal crash, the fuel pump may no longer function, which could lead to fuel loss. In the presence of an ignition source, a fuel leak can result in a fire. Dealers will check the connectors and install a new clamp free of charge.