Upper speed limit
The system is temporarily disabled at speeds
over approx. 250 km/h, 155 mph.
The system becomes responsive again, accord‐
ing to settings, once vehicle speed drops back
below approx. 250 km/h, 155 mph.
System limits of the sensors
For further information:
▷ Radar sensors, see page 49.
Functional limitations
The system may have restricted functionality in
situations such as the following:
▷ The speed of the approaching vehicle is
much faster than your own speed.
▷ On sharp bends or narrow roads.
▷ The bumper is dirty, iced up or covered,
for instance by stickers.
Depending on the national-market version: the
steering intervention may be restricted, for exam‐
ple, in the following situations:
▷ When there are missing, worn, poorly visible,
merging/separating or ambiguous lane mark‐
ings, for example, in areas where there are
roadworks.
▷ With lane boundaries that are covered in
snow, ice, dirt or water.
▷ With lane boundaries that are not white.
▷ With lane boundaries that are covered by ob‐
jects.
▷ If the vehicle is too close to the vehicle ahead.
▷ If the camera is impaired.
▷ Up to 10 seconds after switching on drive-
ready state using the Start/Stop button.
A Check Control message may be displayed if
functionality is restricted. Depending on the na‐
tional-market version, a yellow icon is also illumi‐
nated.
Warning displays
Depending on the selected setting for warnings,
for example the warning time, it is possible that
more or fewer warnings will be displayed. As a
result, there may also be an increased number of
premature warnings about critical situations.
Side collision warning
Principle
The side-collision warning helps to avoid immi‐
nent side collisions.
General
Radar sensors monitor the area adjacent to the
vehicle from a minimum speed up to approxi‐
mately 210 km/h, 130 mph.
The minimum speed is country-specific and dis‐
played on the control display.
A front camera detects the position of the lane
markings.
If another vehicle is detected adjacent to the ve‐
hicle – and there is a risk of a side collision – the
system helps the driver to avoid a collision. For
this purpose, the system issues a warning with a
flashing LED in the exterior mirror, a Check Con‐
trol message and a vibrating steering wheel. The
system may perform an active steering interven‐
tion.
Seite 209
Safety
CONTROLS
209
Online Edition for Part no. 01405A38CB9 - VI/21
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