HDC Hill Descent Control
The concept
HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. Without applying the brakes, the vehicle moves at slightly more than walking speed.
Hill Descent Control can be activated at speeds below approx. 22 mph/35 km/h. When driving downhill, the vehicle reduces its speed to approx.
walking speed and then keeps its speed constant.
As long as there is active braking, the system is on standby. The system does not brake the vehicle during this time.
Use HDC in low gears or in transmission position D or R only.
See also:
Brake assistant
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost. It thus helps to achieve the shortest
possible braking distance during full braking.
This s ...
Rear
BMW X5
BMW X5
Unlock the center armrest with the button in the
lower section of the opening and fold down.
Unlock the center armrest
Press the button; the cover folds forward.
With 3rd row ...
Performance
For 2009, there's just one engine: a 3.0-liter six-cylinder that's good for
260 horsepower. It teams with either a six-speed manual or a six-speed automatic
transmission. All X3s have all-wheel dr ...