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288 Driving and parking
If autonomous braking or situation-dependent
braking assistance has occurred, pop up
appears in the driver's 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 pro-
®
tection (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
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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
Be prepared to brake or swerve if neces-
#
sary.
If Active Brake Assist is deactivated or the func-
tions are restricted, e.g. due to activation of
another driving system, the ê display message
appears in the driver's display.
If the system is unavailable due to dirty or dam-
aged sensors or due to a fault, or if the functions
are restricted, the Ó warning lamp appears in
the driver's display.
Also observe the system limits of Active Brake
Assist.
The individual subfunctions are available in the fol-
lowing speed ranges:
Distance warning function
You are warned by the distance warning function
from approximately 30 km/h if, over several sec-
onds, the distance maintained to the vehicle trav-
elling in front is insufficient for the driven speed.
In this case, the L warning lamp in the driver's
display lights up. If the distance to the vehicle in
front continues to decrease at higher speeds, the
L warning lamp begins to flash.
Collision warning
Collision warning can assist you in the following
situations from approximately 7 km/h with an
intermittent warning tone and the L warning
lamp.
®
Vehicles with PRE-SAFE
: depending on the coun-
try, an additional haptic warning occurs in the
form of slight, repeated tensioning of the seat
belt.
At speeds up to approximately 250 km/h
R
when approaching vehicles ahead.
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