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:

Calibrating the digital compass
The digital compass must be calibrated in the following situations: ▷ An incorrect compass direction is shown. The cardinal direction displayed does not change even if the direction of tra ...

Tire inflation pressure values up to 100 mph/160 km/h
528i 528i xDrive 535i 550i 535i xDrive 550i xDrive ...

Deactivating the system
▷ Press the lever upward or downward twice, arrow 3. ▷ Switch off the ignition. The stored speed is cleared. ...