Driving and operating 167
Active emergency braking is
automatically deactivated in the
following cases:
● A spare wheel with smaller
diameter is detected.
● A fault with the brake pedal
switch or with the left or right
brake light is detected.
● A fault in the active emergency
braking system, in the electronic
or in the brake system is
detected.
● A severe crash, e.g., with airbag
deployment was detected.
System limitations
The system performance may be
degraded or not available in the
following cases:
● sensor covered with snow, ice,
slush, mud or dirt
● windscreen damaged or
smeared, with blurred view or
covered with foreign items, e.g.
stickers,
● damaged or deformed front
bumper or front bumper covered
with foreign items, e.g. stickers
● radar unit is out of its regular
position resulting from an impact
of the front bumper
● front camera out of its regular
position
● automatic braking not available,
e.g. brake discs cooling going on
● brake pedal continuously used
for a long time, e.g. on a long
downhill road
● winding or hilly roads
● system initialization process after
battery disconnection
● sun or lights shining into the front
camera lens
● adverse environmental
conditions, e.g. rain, fog, or snow
● vehicle ahead creating road
spray
After an impact or when damages are
visible have the vehicle checked by a
workshop.
The system performance may be
affected by:
● Electronic Stability Control and
Traction Control in progress
● vehicle battery voltage out of
range
● wet road reflecting lights
● close vehicles ahead
● tractors, muddy vehicles or
vehicles with a trailer
● banked roads
● poor lighting conditions
● sudden lighting changes
● vehicle modifications, e.g. tyres
● vehicle overloaded
The driver must not overload neither
the load compartment nor the roof of
the vehicle.
If a sensor is covered, a message is
displayed indicating that the sensors
have to be cleaned.
If the system is temporarily affected
and no driver action is required, no
message is displayed.
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