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:

    Settings and information
    Operating principle 1.  Button for: > Selecting display > Setting values 2.  Button for: > Confirming selected display or set values > Calling up computer information 3. ...

    Messages after trip completion
    Malfunctions indicated during a trip are displayed again after the ignition is switched off. ...

    Parking brake
    The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels. Indicator lamp The indicator lamp is lit, and when you drive off a signal soun ...