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:
Sport program and manual mode M/S
Activating the sport program
Push the selector lever to the left out of transmission
position D.
DS is displayed in the instrument cluster.
This position is recommended for a performance-
ori ...
Indication of a flat tire
The yellow warning lamp lights
up. A
Check Control message is displayed.
There is a flat tire or a major loss in tire
inflation pressure.
1. Reduce your speed and stop cautiously.
Avoid ...
The concept
The system does not measure the actual inflation
pressure in the tires.
It detects a pressure loss in a tire by comparing
the rotational speeds of the individual wheels
while moving.
In the ev ...
