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In the
Assistance
menu, an insufficient distance
1
to the vehicle in front is displayed in red. If you
further reduce the distance, the vehicle in front
will also be highlighted in red. When the system
detects a risk of collision, red radar waves
appear in front of the vehicle.
®
Vehicles with PRE-SAFE
: depending on the coun-
try, an additional haptic warning will occur in the
form of slight, repeated tensioning of the seat
belt.
If you do not react to the warning, autonomous
braking can be initiated in critical situations.
In especially critical situations, Active Brake Assist
can initiate autonomous braking directly. In this
case, the warning lamp and warning tone will
occur simultaneously with the brake application.
If you apply the brakes yourself in a critical situa-
tion or apply the brakes during autonomous brak-
ing, situation-dependent brake force boosting will
occur. The brake pressure increases up to maxi-
mum full-stop braking if necessary.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognize
dangers (
page 175).
/
2
will
If autonomous braking or situation-dependent
brake force boosting has occurred, pop-up
appear on the driver's display and then automati-
cally go out after a short time.
Driving and parking 199
If the autonomous braking function or situation-
dependent brake force boosting is triggered, addi-
tional preventive measures for occupant protec-
®
tion (PRE-SAFE
) may also be initiated.
& WARNING Risk of an accident caused by
limited detection performance of Active
Brake Assist
Active Brake Assist cannot always clearly iden-
tify objects and complex traffic situations.
In such cases, Active Brake Assist might:
Give a warning or brake without reason
R
Not give a warning or not brake
R
Active Brake Assist is only an aid. The driver is
responsible for maintaining a sufficiently safe
distance to the vehicle in front, vehicle speed
and for braking in good time.
Always pay careful attention to the traffic
#
situation; do not rely on Active Brake
Assist alone.
1
will
Be prepared to brake or swerve if neces-
#
sary.
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