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Driver assistance systems
the system's reactions may be inopportune
or be del
a
y
ed from the driver's standpoint.
So pay attention in order to intervene if nec-
essary.
The following conditions may cause the Front
Assist Monitoring System not to react or do
so too late:
●
On taking tight bends.
●
Pressing the accelerator all the way down.
●
If the Front Assist is switched off or dam-
aged.
●
If the ASR has been manually disconnec-
ted.
●
If the ESC is controlling.
●
If several brake lights of the vehicle or elec-
trically connected trailer are damaged.
●
If the radar sensor is dirty or covered.
●
If there are metal objects, e.g. rails on the
road or sheets used in road works.
●
If the vehicle is reversing.
●
If the vehicle over-accelerates.
●
In case of snow or heavy rain.
●
In case of narrow vehicles, such as motor-
bikes.
●
Misaligned vehicles.
●
Vehicles crossing the other's path.
●
Vehicles approaching in the opposite direc-
tion.
●
Special loads and accessories of other ve-
hicles that jut out over the sides, backwards
or over the top.
City Emergency braking function
Fig. 189 On the instrument panel display: ad-
v
anc
e w
arning message
The City Emergency braking function is part
of
the Fr
ont
Assist monitoring and is active
whenever the system is switched on.
Depending on the equipment, the City emer-
gency braking function may be switched on
and off in the Easy Connect system using
the
button and the
S
ETUP
and
Driver assistance
function buttons
›
›
›
page 27.
The City Emergency braking function picks
up, at speeds between 4 km/h (2.5 mph) and
30 km/h (19 mph) approximately, the traffic
situation in front of the vehicle up to a dis-
tance of about 15 m.
If the system detects a possible collision with
a vehicle in front of it, the vehicle prepares
for a possible emergency braking ›››
.
If
the driv
er f
ails to react to a possible colli-
sion, the system may brake the vehicle auto-
matically, by progressively increasing braking
effect driving to reduce speed in the event of
a collision. The system can thus help to re-
duce the consequences of an accident.
Status display
Automatic deceleration by means of the City
Emergency braking function is displayed on
the instrument panel by means of the ad-
vance warning ››› Fig. 189
1)
.
WARNING
The smart technology included in the City
Emergency
braking function cannot defy the
laws of physics. The driver is always respon-
sible for braking in time.
»
1)
The symbol on the instrument panels with colour
disp
lay is in colour.
215
Technical dataAdviceOperationEmergenciesSafety
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