The concept

HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. Without the brakes being applied, the vehicle moves at slightly more than twice 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.

twice 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:

    General driving notes
    Close the trunk lid Only drive with the trunk closed. Failure to do so may endanger passengers or other road users or may damage the vehicle in the event of an accident or a braking and evasive ma ...

    Driving tips
    This section provides you with information useful in dealing with specific driving and operating conditions. ...

    Maintaining/storing the speed
    Press the button. When the system is switched on, the current speed is maintained and stored as the desired speed. It is displayed in the speedometer and briefly displayed in the instrument c ...