Situation-dependent braking assistance
Situation-dependent braking assistance may intervene at speeds starting from approximately
4 mph (7 km/h) in the following situations:
Vehicles travel‐
ing in front
Stationary vehi‐
cles
Crossing vehi‐
cles
Crossing pedes‐
trians/cyclists
Stationary
pedestrians
Up to approx.
155 mph
(250 km/h)
Up to approx.
50 mph
(80 km/h)
No reaction
Up to approx.
37 mph
(60 km/h)
No reaction
Canceling a brake application of Active Brake
Assist
You can cancel a brake application of Active
Brake Assist at any time by:
R
Fully depressing the accelerator pedal or with
kickdown.
R
Fully releasing the brake pedal (only during
situation-dependent braking assistance).
Active Brake Assist may cancel the brake applica‐
tion when one of the following conditions is fulfil‐
led:
R
You maneuver to avoid the obstacle.
R
There is no longer a risk of collision.
R
An obstacle is no longer detected in front of
your vehicle.
System limits
The system may be impaired or may not function
in the following situations:
R
The sensors are affected by snow, rain, fog or
heavy spray.
R
The sensors are dirty, fogged up, damaged or
covered.
R
The sensors are affected by interference from
other radar sources, e.g. strong radar reflec‐
tions in parking garages.
R
If a loss of tire pressure or a faulty tire has
been detected and displayed.
R
Full system performance is not available for a
few seconds after switching on the ignition or
after driving off.
The system may not react correctly in the follow‐
ing situations:
R
In complex traffic situations, objects may not
always be clearly detected.
R
Pedestrians or vehicles move quickly into the
detection range of the sensors.
R
Pedestrians are obscured by other objects.
R
In bends with a narrow radius.
Setting Active Brake Assist
Requirements:
R
The ignition is switched on.
Multimedia system:
4
©
5
Settings
5
Assistance
5
Active Brake Assist
The following settings are available:
R
Early
R
Medium
R
Late
R
Off
%
It is recommended that Active Brake Assist is
always left activated.
#
Select a setting.
The last active setting is selected automatically
every time the engine is started.
Exception: if the last setting was
Off
, the
Medium
setting will be automatically activated the next
time the engine is started.
Deactivating Active Brake Assist
%
It is recommended that Active Brake Assist is
always left activated.
#
Select
Off
.
The distance warning function and autono‐
mous braking function are deactivated.
The next time the engine is started, the
Medium
setting will be automatically activated.
%
When Active Brake Assist is deactivated, the
æ
symbol appears in the status area of
the multifunction display.
Driving and parking 147
