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CONTROLS
Depending on the equipment and situation in
case of an imminent danger of collision, the
system can also intervene with an automatic
brake intervention and automatically deceler‐
ate the vehicle, if necessary, to a complete
stop.
When the brake is operated during a warning, the
maximum necessary brake force is applied. This
requires the brake pedal to be pressed suffi‐
ciently quickly and firmly.
Automatic brake intervention
In case of a risk of collision, the system can assist
with an automatic brake intervention, if neces‐
sary.
At low speeds, the vehicle can be braked to a
stop.
A brake intervention can be cancelled by step‐
ping on the accelerator pedal, releasing the brake
pedal or with an active steering movement.
Depending on the equipment and situation, the
brake intervention can occur at speeds of up to
approx. 250 km/h/155 mph.
At speeds above approx. 210 km/h/130 mph,
only a brief brake intervention will occur.
System limits
Safety note
WARNING
The system may not respond at all, or may re‐
spond too late, incorrectly or without justifica‐
tion due to system limitations. There is a risk of
accident or material damage. Observe the in‐
formation on the system limits and intervene
actively if necessary.
Detection capability
The detection capability of the system is limited.
192
Safety
Online Edition for Part no. 01405A38CB9 - VI/21
Only objects within the detection range and that
are detected by the system are taken into ac‐
count.
For this reason, the system may fail to respond
or only respond after a delay.
System limits of the sensors
For further information:
Sensors in the vehicle, see page 48.
Functional limitations
The system may have restricted functionality in
situations such as the following:
▷
On sharp bends.
▷
With restriction of the driving stability control
systems.
▷
Up to 10 seconds after switching on drive-
ready state using the Start/Stop button
Malfunction
In the event of a system fault, a Check Control
message or indicator/warning lights will generally
be displayed.
A system fault can be triggered by the failure of
individual components, for example:
▷
Sensors, for example camera.
▷
Control units, for instance for the Dynamic
Stability Control.
Warning function in rear-end
collision situations
Principle
The system sounds a warning before a risk of
collision and activates brakes independently, if
needed. If an accident cannot be avoided, this re‐
duces the collision speed.
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