Driving stability control systems
Controls
The following information is displayed:
▷
With a navigation system: compass display
for the driving direction
▷
▷
Pitch attitude with degree and percentage.
Transverse gradient with degree indica‐
tion.
▷
Graphic display for the steering.
Displaying distribution of the drive
torque
1. "Vehicle info"
2. "xDrive status"
▷
▷
Press the rocker switch up to the point of
resistance: the speed increases gradually.
Press up the rocker switch past the point
of resistance: the speed increases while
the rocker switch is pressed.
3.
"Torque distribution"
▷
▷
Press the rocker switch down to the point
of resistance: the speed decreases gradu‐
ally.
HDC Hill Descent Control
Press the rocker switch down past the
point of resistance: when driving forward,
the speed decreases to approx.
6 mph/10 km/h; when reversing, the speed
decreases to approx. 4 mph/6 km/h.
Concept
HDC is a downhill driving assistant that auto‐
matically controls vehicle speed on steep
downhill gradients. Without applying the
brakes, the vehicle moves at slightly more than
walking speed. It the brakes are actively ap‐
plied, the system distributes force according to
the traction.
Activating HDC
Vehicle stability and maneuverability are im‐
proved on downhill gradients.
Hill Descent Control can be activated at
speeds below approx. 22 mph/35 km/h. When
driving downhill, the vehicle reduces its speed
and then keeps its speed constant.
Only use HDC in low gears or in selector lever
position D or R.
Press button; the LED above the button
lights up.
Increasing or decreasing vehicle
speed
Specify desired speed in the range from ap‐
prox. 4 mph/6 km/h to approx. 15 mph/25 km/h
using the rocker switch of the cruise control on
the steering wheel. Vehicle speed can be
changed by lightly accelerating.
Deactivating HDC
Press button again. The LED goes out.
HDC is automatically deactivated above
approx. 37 mph/60 km/h.
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