The concept

HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. Without requiring brake application, the vehicle moves at slightly more than twice walking speed.

You can activate the Hill Descent Control at speeds below approx. 22 mph/35 km/h. When driving downhill, the vehicle reduces its speed to approx. twice walking speed and then keeps its speed constant.

While you are actively braking, the system is on standby. The system does not brake the vehicle during this time.

    See also:

    Front ventilation
    Front ventilation ▷ Lever for changing the air flow direction, arrow 1. ▷ Thumbwheels for opening and closing the vents continuously, arrows 2. ▷ Thumbwheel to vary the temp ...

    The concept
    The system is functional at speeds beginning at approx. 20 mph/30 km/h. It maintains the speed that was set using the control elements on the steering wheel. The system brakes on downhill gradie ...

    Display
    The Control Display shows how xDrive and Dynamic Performance Control are distributing the drive forces. 1. "Vehicle Info" 2. "Torque distribution" Torque distribution The ...