The system is designed to operate in certain
conditions and circumstances. Due to condi‐
tions or other factors, the system may not re‐
spond. There may be a risk of accident or risk
of damage to property. Actively intervene as
warranted. Refer to the information in this Own‐
er’s Manual regarding the scope of the sys‐
tem’s operation and limitations.
The system may not be fully functional in the fol‐
▷ When a vehicle is approaching at a speed
much faster than your own.
▷ 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.
▷ After improperly performed work on the vehi‐
▷ If cargo protrudes.
▷ In the event of missing, worn, poorly visible,
merging, diverging, or multiple lane markings
such as in construction areas.
▷ When lane markings are covered in snow, ice,
dirt or water.
▷ When lane markings are covered by objects.
▷ When driving very close to the vehicle in front
▷ If there are constant blinding effects because
of oncoming light, for instance from the sun
low in the sky.
▷ If the field of view of the camera or the wind‐
shield is dirty or covered in the area of the in‐
▷ If the camera has overheated and been tem‐
porarily switched off due to excessively high
▷ Up to 10 seconds after the start of the engine
via the Start/Stop button.
▷ During calibration of the camera immediately
after vehicle delivery.
Attaching any objects such as stickers or film in
the beam area of the radar sensors will also im‐
pact the function of the radar sensors and may
even cause them to fail.
A Check Control message is displayed when the
system is not fully functional.
If the trailer power socket is in use or trailer tow‐
ing is activated, for instance during operation
with trailer or bicycle rack, the system cannot be
switched on. A Check Control message is dis‐
Rear collision preparation
The system reacts to vehicles approaching from
Two radar sensors in the rear bumper monitor
the area behind the vehicle.
When a vehicle approaches from the rear at a
certain speed, the system responds as follows:
Online Edition for Part no. 01405A10E93 - VI/20