Mercedes-Benz 2008 M-Class Operator's Manual page 321

Operation
Driving instructions
Never let the vehicle roll backwards in idle.
You may lose control of the vehicle if you
use only the service brake. For information
on driving downhill, see "Driving downhill"
( page 324).
Warning!
Sand, dirt, mud and other material having
friction property can cause exceptional wear
and tear as well as brake failure.
Have the brakes checked for dirt build-up
and cleaned. There is otherwise a risk that
full braking power may not be available in an
emergency.
320
Warning!
Vehicles with air suspension program*:
Please be aware that by raising the vehicle
level, the center of gravity also rises. There-
fore, always ensure that the vehicle level is
G
as low as possible. With higher ride height
®
the ESP may activate earlier in certain
situations.
Read this chapter carefully before you be-
gin off-road travel.
Familiarize yourself with the vehicle char-
acteristics and gear changing before you
attempt any difficult terrain off-road driv-
ing. We recommend that you start out with
easy off-road travel.
Special driving features for off-road
G
driving
The following driving features are available
for specific kind of operation:
Off-road – ABS ( page 99)
®
Off-road – ESP
Off-road – 4-ETS ( page 105)
Hill start assist system ( page 191)
Downhill Speed Regulation (DSR)
( page 249)
Off-road driving program ( page 253)
Air suspension* ( page 254)
( page 103)