2010 Mercedes-Benz GL450 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2010 Mercedes-Benz GL450

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2010 Mercedes-Benz GL450 Problems

Rough Shifting of Automatic Transmission

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.

Oil Seepage on Back of the Cylinder Heads

The Mercedes Benz GL450 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.

Brake Pads & Rotors May Wear After 20,000 Miles

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.

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2010 Mercedes-Benz GL450 Questions

I'm over 1000 miles on my maintenance services c is there any problems? (1 answer)

I just get back on my trip and i have i'm over 1000 miles on maintenance service C.
I like take my car to the dealer for maintenance but right i don't have money for services, but i'm keeping driving my car, do i'm going to cause more situation in my cars if yes what it is? any ...

Gas issue (1 answer)

Accidentally put 8 gallons of unleaded gas instead premium.
What do you?
Switch to premium and mix?
Or go to the dealer fix it.

Timing belt change interval (1 answer)

Timing belt change interval

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2010 Mercedes-Benz GL450 Recalls

Driver'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.

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