Common problems with the Mercedes-Benz GL450 include issues with seatbelt anchors in the 2014 GL450 and hydraulic power issues in the 2008 model, as of 2015. Both issues resulted in vehicle recalls and repairs to vehicles at local Mercedes-Benz dealerships.
Unsafe seatbelt anchors in the 2014 GL450 increased likelihood of injury for children sitting in the second-row seat during a crash. Recall repairs offered replacement of the seatpan of the second-row seat.
The hydraulic power issue in the 2008 GL450 was the result of defective driving pins that could break and limit the steering range of the wheel. Recall repairs offered replacement of the steering gears for all qualified owners.