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04 Driver support
Collision Warning with Auto Brake & Pedestrian Protection*
The collision warning system and City
Safety™ complement each other. For more
information on City Safety™, see page 173.
1 - Collision warning
The driver is first warned of a potentially
imminent collision.
The collision warning system detects pedes-
trians, stationary vehicles as well as vehicles
driving in the same direction in front of the
car.
04
If there is a risk of collision with a pedestrian
or a vehicle, the driver's attention is attracted
with a flashing red warning signal (no. [1] in
the illustration on page 179) and an acoustic
signal.
2 - Brake support
2
If the risk of collision has increased further
after the collision warning then the brake sup-
port is activated.
This means that the brake system is prepared
for rapid braking by applying the brakes
lightly, which may feel like a slight jolt.
If the brake pedal is depressed sufficiently
quickly then full brake function is imple-
mented.
With system Level 2 only.
2
*
180
Option/accessory, for more information, see Introduction.
Brake support also reinforces the driver's
braking if the system considers that the brak-
ing is not sufficient to avoid a collision.
3 - Auto Brake
2
The automatic brake function is activated
last.
If in this situation the driver has not yet
started to take evasive action and the risk of
collision is imminent then the automatic brak-
ing function is deployed - this takes place
irrespective of whether or not the driver
brakes. Braking then takes place with full
brake force in order to reduce collision speed,
or with limited brake force if it is sufficient to
avoid a collision.
WARNING
The collision warning system does not
engage in all driving situations or traffic,
weather or road conditions. The collision
warning system does not react to vehicles
driving in another direction to the car or to
animals.
Warning only activated in the event of a
high risk for collision. This section "Func-
tion" and the section "Limitations" inform
about limitations that the driver must be
aware of before using the Collision Warn-
ing system with Auto Brake.
Warnings and brake interventions for
pedestrians are switched off at vehicle
speeds exceeding 80 km/h.
Warnings and brake interventions for
pedestrians do not work in darkness and
tunnels - not even when streetlights are lit.
The auto-brake function can prevent a col-
lision or reduce collision speed. To ensure
full brake performance, the driver should
always depress the brake pedal - even
when the car auto-brakes.
Never wait for a collision warning. The
driver is always responsible that the cor-
rect distance and speed are maintained -
even when the collision warning system
with auto-brake is used.
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