G-Class Owner's Manual - Mercedes G-Class, G-Wagon, G500, G55 ...

Operation
Driving tips
Tyre grip Driving in winter
While you may still be able to control your
vehicle at a given speed on a dry road surface,
you must reduce your speed on a wet
surface to maintain the same degree of
safety.
Pay particular attention to road conditions
when the temperature is around freezing.
If ice has formed on the road (e.g. due to
freezing fog), applying the brakes can
cause a thin layer of water to form rapidly
on the surface of the ice. This layer of water
considerably reduces tyre grip. Drive
with particular care in such weather conditions.
268
Risk of accident G
Do not shift down for additional engine braking
on a slippery road surface. The drive
wheels could lose their grip and the vehicle
could skid.
Nur fuer internen Gebrauch
Risk of injury G
If your vehicle becomes stuck in snow, you
must make sure that the area immediately
surrounding the vehicle, and in particular
next to the exhaust system, is kept free of
snow while the engine is running. Exhaust
fumes (including carbon monoxide) could
otherwise get into the vehicle interior and, in
high concentrations, could cause unconsciousness
or death. Make sure that there is
a sufficient flow of fresh air in to the vehicle
immediately (e.g. slightly open the windows
on the lee side of the vehicle).