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:
System limits
Be alert
Due to system limitations, warnings may
be not be issued at all, or may be issued late or
improperly. Therefore, always be alert and ready
to intervene; otherwise, there is the danger ...
Fold-out position of the wipers
Required when changing the wiper blades or
under frosty conditions, for example.
1. Switch off the ignition.
2. Under frosty conditions, ensure that the
wiper blades are not frozen onto the wind ...
Volume
▷ "Speed volume": speed-dependent volume
control.
▷ "PDC": volume of the PDC signal compared
to the entertainment sound output.
▷ "Gong": volume o ...
