Mercedes-Benz 2008 ML 350 Automobile User Manual


 
326
Operation
Driving instructions
When driving over tree stumps, big rocks
and other obstacles, observe the following
rules:
ț Make sure the off-road driving program
(
page 253) is switched on.
ț Avoid high engine speeds.
ț Shift automatic transmission to
position 1 (
page 192).
ț Check the vehicle clearance before
crossing obstacles.
ț Cross obstacles (e.g. tree stumps or
big rocks) very slowly by aiming one of
the front wheels at the center of the ob-
stacle, and repeat same with the rear
wheel.
Driving on sand
When driving on sand, observe the follow-
ing rules:
ț Vehicles with air suspension program*:
Set the raised level (
page 255).
ț Avoid high engine speeds.
ț Shift automatic transmission into a
gear range that is appropriate for the
terrain.
ț In sandy soil, drive at a steady speed as
conditions permit. This helps overcome
the vehicle rolling resistance and re-
duce the likelihood of the vehicle sink-
ing into the ground.
ț Drive in tracks of other vehicles if they
are not too deep and you have suffi-
cient clearance.
Ruts
A number of off-road tracks or other by-
ways have deep ruts which can cause the
underbody to come in contact with the
ground.
ț Make sure the off-road driving program
(
page 253) is switched on.
ț Vehicles with air suspension program*:
Set the raised level (
page 255).
!
Special attention is needed when you cross
obstacles on a steep incline.
The vehicle could slide sideways as a result of its
possible slanted position which in turn may
result in the vehicle tipping or rolling over.
Warning! G
Do not reduce the tire inflation pressure
before driving through sand. However, if you
do so, remember to correct the tire inflation
pressure (
page 359) before continuing
your trip. Driving with reduced tire inflation
pressure increases the risk of losing control
of the vehicle and rolling over.