The radar sensors are located in the rear
Always keep the bumper in the area of the radar
sensors clean and unobstructed.
The system is automatically active after every
The system is deactivated in the following situa‐
▷ When driving in reverse.
The system may not be fully functional in the fol‐
▷ When a vehicle is approaching at a speed
much faster than your own.
▷ When the approaching vehicle approaches
▷ In heavy fog, wet conditions, or snowfall.
▷ In tight curves or on narrow lanes.
▷ If the bumper is dirty, iced up, or covered,
for instance by stickers.
▷ If cargo protrudes.
Active Protection prepares occupants and the
vehicle for a possible accident in critical driving or
Active Protection consists of various PreCrash
functions, which can vary depending on the
The system is used to detect certain critical driv‐
ing situations that might lead to an accident. This
includes the following critical driving situations:
▷ Emergency stop.
▷ Severe understeering.
▷ Severe oversteering.
Certain functions of several systems can, within
the system limits, lead to Active Protection trig‐
▷ Front collision mitigation: automatic brake in‐
▷ Front collision mitigation: Brake Assistant.
▷ Rear collision preparation: detection of immi‐
nent rear collisions.
The system cannot serve as a substitute for the
driver’s personal judgment. Due to the system
limits, critical situation could not be detected
reliably or in time. There is a risk of accident.
Adjust driving style to traffic conditions. Watch
traffic closely and actively intervene where ap‐
Online Edition for Part no. 01402779051 - II/19