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218 Driving and parking
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 is also highlighted in red. When the system
detects a risk of collision, red radar waves
appear in front of the vehicle.
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Vehicles with PRE-SAFE
: depending on the
country, an additional haptic warning occurs 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 particularly critical situations, Active Brake
Assist can also initiate autonomous braking
directly. In this case, the warning lamp and warn‐
ing tone occur simultaneously with the braking
application.
If you apply the brake yourself in a critical situa‐
tion or apply the brake during autonomous brak‐
ing, situation-dependent braking assistance
occurs. The brake pressure increases up to max‐
imum full-stop braking if necessary.
2
If autonomous braking or situation-dependent
braking assistance has occurred, pop up
appears in the driver display and then automati‐
cally goes out after a short time.
If the autonomous braking function or the situa‐
tion-dependent braking assistance is triggered,
additional preventive measures for occupant
protection (PRE-SAFE
& WARNING Risk of an accident caused by
limited detection performance of Active
Brake Assist
Active Brake Assist cannot always clearly
identify objects and complex traffic situa‐
tions.
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 traf‐
#
fic situation; do not rely on Active Brake
1
Assist alone.
Be prepared to brake or swerve if nec‐
#
essary.
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) may also be initiated.
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