See also:

Ruts and gravel roads
Observe the following rules when driving along ruts in off-road terrain or on roads with loose gravel: Check that the ruts are not too deep and that your vehicle has sufficient clearance. ...

Vehicle data, GL 450
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. ...

Vehicle identification p
Even if you have calculated the total load carefully, you should still make sure that the gross vehicle weight rating and the gross axle weight rating are not exceeded. Details can be found on the ...