Mercedes-Benz GL450 Repair and Maintenance

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

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Mercedes-Benz GL450
$
1,310
to $
3,113
Mercedes-Benz GL450
$
177
to $
346
Mercedes-Benz GL450
$
265
to $
761
Mercedes-Benz GL450
$
536
to $
1,028
Mercedes-Benz GL450
$
774
to $
1,174

Mercedes-Benz GL450 Problems

Internal 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.

Soft Braking Components 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.

Oil May Leak From PCV Vent Housings and Inspection Plates

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.

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Mercedes-Benz GL450 Questions

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.

The backup camera on my 2013 GL 450 does not shut off when the vehicle is put back into Drive. (1 answer)

the passenger sear headrest became dilodged. very loose. hanging on. (1 answer)

we think the kids dislodged the headrest when they were joking around. a punch from the back seat hit the headrest. the srs warning light came on.

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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.

Seat Belt Anchoring Bolts Loose

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 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.

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Mercedes-Benz GL450 Reviews

My third GL450 2013 had for 2000 miles when front brake vibration I am told is secondary to warped rotor/pad issue. Also noisy ventilation vent drivers dashboard with whistle other gl 450 owners have same complaints about. Lastly and most dangerous is engine hesitation after going from downhill to level car attitude causing unpredictable acceleration and danger. Also and maybe related is tracti...
Sometimes my 450 will not downshift ansd once you stop it will not go into reverse until you restart thecar.
I love my GL450, I had a ML500 and sold it for this GL450 and never looked back. Listed at $73500 with all options in 2007 a new 2011 is now over $94,000 with same options. getting priced too high

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