Icon Description
The indicator light is illumi-
nated and 4WD Sand appears
in the instrument cluster:
Program is activated.
Warning light illuminates:
The M xDrive system may not
be operational. Have the vehi-
cle checked immediately.
Display on the control display
Information on M xDrive can be selected in the
Live Vehicle menu.
The following information is displayed:
▷ Distribution of drive torque to the wheels.
▷ Longitudinal inclination: specified in per-
cent.
▷ Transverse inclination: specified in degrees.
▷ Graph of wheel angle.
▷ With navigation system: elevation for the
current position.
Additional information:
Live Vehicle, refer to page 137.
Hill Descent Control
Principle
Hill Descent Control is a downhill control fea-
ture that adjusts the vehicle speed on steep
downhill gradients, e.g., when driving on un-
paved roads.
General information
When the system is active, the vehicle moves
at the speed set by the driver, without the
driver having to depress the brake pedal.
While Hill Descent Control is adjusting the
speed, the system automatically distributes the
brake power to the individual wheels. This im-
proves driving stability and steerability. If nec-
essary, the Antilock Braking System prevents
the wheels from locking.
Hill Descent Control can be enabled at speeds
below approx. 25 mph/40 km/h.
Speeds can be set between approx.
2 mph/3 km/h and approx. 20 mph/30 km/h.
When the vehicle is driving downhill, the sys-
tem reduces the speed to the set value, within
the physical limits.
Hill Descent Control provides assistance when
driving in selector lever positions D, N, and R.
Overview
Button in the vehicle
Hill Descent Control
Enabling/disabling Hill Descent
Control
Activating the system
Press the button.
The LED on the button illuminates.
Speeds between approx.
2 mph/3 km/h and approx. 20 mph/30 km/h
are adopted as the set speed.
While Hill Descent Control is regulating the ve-
hicle speed, the following functions are deacti-
vated:
Seite 218
CONTROLS
Driving stability control systems
218
Online Edition for Part no. 01405A8A608 - VI/23
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