Mercedes-Benz GL-Class: Driving on sand
WARNING 
Do not reduce the tire inflation pressure
before driving through sand. However, if you
do so, remember to correct the tire inflation
pressure before continuing your trip. Driving
with reduced tire inflation pressure increases
the risk of losing control of the vehicle and
rolling over.
Observe the following rules when driving on sand:
• select a higher vehicle level.
• avoid high engine speeds.
• select a shift range appropriate to the
terrain.
• drive quickly to overcome the rolling
resistance. Otherwise, the vehicle could dig
itself into the sand.
• drive in the tracks of other vehicles if
possible. Make sure that the ruts are not
too deep, that the sand is firm enough and
that your vehicle has sufficient ground
clearance.
Checklist after driving off-road
WARNING
If you notice sudden significant vibrations or
unusual handling performance or if you
suspect that damage has occurred to the
vehicle, you should activate the hazard
warning l ...
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.
O ...
See also:
4WD shift indicator
The 4WD shift indicator is displayed in the
vehicle information display.
The indicator should turn off within 1
second after placing the ignition switch in
the ON position.
While the engin ...
Reporting malfunctions relevant tosafety
For the USA only:
The following text is reproduced as required
of all manufacturers according to Title 49,
Code of U.S. Federal Regulations, Part 575
pursuant to the National Traffic and Motor
...
Running the Vehicle While Parked
It is better not to park with the engine running. But if you ever have to, here
are some things to know.
WARNING
Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine
...
