Mercedes-Benz B-Class Owner's Manual page 248

If autonomous braking or situation-dependent
braking assistance has occurred, display
appears in the Instrument Display and then auto-
matically goes out a er 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.
& W W ARNING
ARNING Risk of an accident caused by
limited detection performance of Active
Brake Assist
Active Brake Assist cannot always clearly iden-
tify objects and complex tra c situations.
In such cases, Active Brake Assist might:
Give a warning or brake without reason
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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 su ciently safe
distance to the vehicle in front, vehicle speed
and for braking in good time.
Always pay careful attention to the tra c
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situation; do not rely on Active Brake
Assist alone.
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Be prepared to brake or swerve if neces-
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sary.
Also observe the system limits of Active Brake
Assist.
The individual subfunctions ar The individual subfunctions are av
ous speed r ous speed rang anges: es:
The distance warning function can issue a warn-
ing in the following situations:
From approximately 30 km/h, if over several
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seconds the distance maintained to the vehi-
cle travelling in front is insu cient for the
driven speed, the L distance warning lamp
lights up in the instrument cluster.
From approximately 7 km/h, if your vehicle is
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critically close to a vehicle, cyclist or pedes-
trian, you will hear an intermittent warning
tone and the L distance warning lamp
lights up in the instrument cluster.
V V ehicles wit ehicles with PRE-S
country, an additional haptic warning occurs
in the form of slight, repeated tensioning of
the seat belt.
Brake immediately or take evasive action, provi-
ded it is safe to do so and the tra c situation
allows this.
Dist Distance w ance war arning function (v
ing Assist ing Assistance P
e available in v ailable in var ari- i-
The distance warning function can aid you in the
following situations with an intermittent warning
tone and a warning lamp:
at speeds up to approximately 250 km/h
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when approaching vehicles ahead
Driving and parking 245
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h PRE-SAFE AFE : : depending on the
ning function (vehicles wit ehicles without Dr hout Driv- iv-
ance Pack ackag age) e)
245