The concept
HDC is a downhill driving assistant that automatically controls vehicle speed on steep downhill gradients. The vehicle moves at approximately walking speed without braking intervention by the driver.
You can activate the Hill Descent Control at speeds below approx. 22 mph/35 km/h. When moving downhill at speeds below approx.
22 mph/35 km/h, the vehicle reduces its speed to approximately walking speed, approx. 5 mph/ 8 km/h and keeps it constant.
Only use HDC in transmission positions D or R.
See also:
Opening/closing the glass sunroof
When the sliding visor is open, proceed as described
under Sliding visor. ...
Preparation
1. Check whether the battery of the other vehicle
has a voltage of 12 volts. This information
can be found on the battery.
2. Switch off the engine of the assisting vehicle.
3. Switch off any el ...
Malfunction
In the event of a failure or malfunction of the
parking brake, secure the vehicle against rolling
using a wheel chock, for example, when leaving
it. ...
