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If an automatic brake intervention is triggered by the system, the pressure in
the brake system increases and the brake pedal cannot be operated with the
normal pedal stroke.
The automatic braking interventions can be cancelled by pressing the acceler-
ator pedal or by steering intervention.
Brake assist
If the driver brakes inadequate with an impending collision, the system auto-
matically increases braking force.
The braking assistance only occurs as long as the brake pedal is being firmly
pressed down.
Deactivation/activation
Fig. 211 Buttons/dial: on the operating lever/the multifunction steering
wheel
Read and observe
and
The system is automatically activated each time the ignition is switched on.
The system should only be disabled in exceptional cases
On vehicles with the MAXI DOT display, the system can be activated/deactiva-
ted in the main menu
» page
53, Menu item Assist systems.
Deactivation / activation in vehicles with segment display
Button
Action
» Fig. 211
Hold up / down
A
Press
B
on page 181 first.
»
.
Operation
Show Front Assist menu item
Deactivate/activate system
Deactivation / activation in vehicles with multi-function steering wheel
Button /
dial
Action
» Fig. 211
Press
C
Press
D
Disable / enable and setting in the Infotainment
In Infotainment, the entire system or the function advance warning and dis-
tance warning can be
deactivated/activated» page
ment.
If the distance-warning function was deactivated before switching off the ig-
nition, it remains deactivated after switching on the ignition.
WARNING
In the following situations, Front Assist should be switched off for safety
reasons.
When the vehicle is being towed away.
■
When the vehicle is on a rolling test bench.
■
If an unfounded warning or a system action was taken.
■
When on a truck, or a vehicle ferry service or similar.
■
Malfunctions
Read and observe
and
If, for some unknown reason, the system is not available, an appropriate mes-
sage appears in the display of the instrument cluster.
Sensor covered / dirty
If the sensor is dirty or covered, a message indicating that there is no sensor
view appears. Clean the sensor cover or remove the obstacle
page 171.
System unavailable
If the system is currently unavailable, a message concerning the unavailability
appears. Stop the vehicle, switch off the engine and then start it again. If the
system still is not available, seek the assistance of a specialist garage.
Operation
Show Front Assist menu item
Deactivate/activate system
181, Settings in Infotain-
on page 181 first.
» Fig. 194
Assist systems
on
183
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