DTC Dynamic Traction
Control
Concept
DTC is a version of the DSC Dynamic Stability
Control where drive power is optimized.
The system ensures maximum drive power on
unusual road conditions, for instance unplowed
snow covered roads, or loose road surfaces, but
with somewhat limited driving stability.
When DTC is activated, the vehicle has maxi‐
mum traction. Driving stability is limited during
acceleration and when driving in curves.
Drive carefully.
You may find it useful to briefly activate DTC un‐
der the following special circumstances:
▷ When driving in slush or on uncleared, snow-
covered roads.
▷ When driving off from deep snow or loose
ground.
▷ When driving with snow chains.
Deactivating/activating DTC
Dynamic Traction Control
Activating DTC
Press the button.
TRACTION is displayed in the instru‐
ment cluster and the indicator light for DSC OFF
lights up.
Deactivating DTC
Press the button again.
TRACTION and the DSC OFF indicator
light go out.
Performance Control
Performance Control enhances the agility of the
vehicle.
To increase maneuverability, wheels are braked
individually when a sporty driving style is used.
xDrive
xDrive is the all-wheel-drive system of the vehi‐
cle. Concerted action by the xDrive and DSC Dy‐
namic Stability Control further optimizes traction
and driving dynamics. The xDrive all-wheel-drive
system variably distributes the drive forces to the
front and rear axles as demanded by the driving
situation and road surface.
HDC Hill Descent Control
Concept
Hill Descent Control, HDC, is a downhill control
feature that controls the vehicle speed on steep
downhill grades, for instance when driving on un‐
paved roads.
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 HDC is controlling the speed, the system
automatically distributes the braking force to the
individual wheels. This improves vehicle drivabil‐
ity and driving stability. If necessary, the Antilock
Braking System prevents the wheels from lock‐
ing.
General information
Hill Descent Control can be activated 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 moving downhill, the system
reduces the speed to the set value, within the
physical limits.
Seite 164
CONTROLS
Driving stability control systems
164
Online Edition for Part no. 01405A10C39 - VI/20
