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Driving systems
280
Collision warning and emergency braking
Overview
Distance control assistant preliminary warning (
:
Active Brake Assist warning
;
Active Brake Assist partial braking
=
Emergency stop (full brake application)
?
Emergency stop completed
A
If a collision warning appears in the on-board computer when the vehicle is in motion:
X
Pay particular attention to the traffic situation.
X
Depress the brake pedal.
If there is a risk of collision and Active Brake Assist issues a warning, the audio device and/or
hands-free system installed at the factory are automatically muted.
Preliminary warning (distance control
assistant)
The · symbol also appears in the yellow
event window in the on-board computer. A
double warning tone sounds.
Warning (Active Brake Assist)
The · symbol appears in the red event
window in the on-board computer. An inter-
mittent warning tone sounds.
Partial braking (Active Brake Assist)
The · symbol appears in the red event
window in the on-board computer. An inter-
mittent warning tone sounds. In addition,
Active Brake Assist slows the vehicle with
Y
page 275)
automatic partial braking. Active Brake Assist
brakes the vehicle with around 50% of the
vehicle's maximum braking power.
Emergency braking (Active Brake Assist)
If you do not react to the collision warnings
and partial brake application, Active Brake
Assist automatically initiates emergency
braking (full brake application).
The · symbol appears in the red event
window in the on-board computer. A contin-
uous warning tone sounds. In addition, Active
Brake Assist slows the vehicle with an auto-
matic emergency braking manoeuvre (full
brake application).
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