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Vehicle data, GL 550
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

Belt height adjustment
You can adjust the seat belt height on the driver's seat and the front-passenger seat. Adjust the height so that the upper part of the seat belt is routed across the center of your shoulder. ...

Important safety notes
We recommend that all infants and children be properly secured in an infant or child restraint system at all times while the vehicle is in motion. The use of seat belts and infant and child r ...