See also:

Additional functions
Activating/deactivating the additional functions Activate the functions before pairing to be able to use them in the vehicle. Information on suitable mobile phones, that support this function ...

Tire inflation pressures at max. speedsabove 100 mph/160 km/h
Speeds above 100 mph/160 km/h In order to drive at maximum speeds in excess of 100 mph/160 km/h, please observe, and, if necessary, adjust tire pressures for speeds exceeding 100 mph/160 km/h fro ...

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 ...