Page 194 of 416
Acute warning with braking functionAn acute warning is displayed in the event of
an immediate risk of collision with a crossing
vehicle.
If an acute warning is issued, brake and evade
as necessary. If an acute warning is provided,
the system may provide assistance, such as
through automatic brake intervention, when
there is risk of collision.
Acute warnings may be provided even when
there has been no prior warning.
Brake intervention
The warning prompts the driver to intervene.
The system may also assist in braking if there
is a risk of collision.
The vehicle can be decelerated to a standstill. The braking intervention can be interrupted by
stepping on the accelerator pedal with suffi
Page 207 of 416
possible. On other roads or with high trafficvolume, the vehicle is brought to a standstill in
the current lane.
Overview
Parking brake
Functional requirements
Page 211 of 416
At standstillAfter coming to a halt, the brake is released
automatically.
Harder vehicle deceleration
In certain situations, it may be necessary to
bring the vehicle to a halt more quickly than automatic braking allows.
To do this, quickly apply extra force to the
brake. For a brief period, the brake pressure will be higher than the brake pressure that is
achieved by the automatic braking function.
Automatic brake actuation is interrupted.
Canceling automatic braking It may be necessary to interrupt automaticbraking in certain situations, for instance when
making an evasive maneuver.
Cancel automatic braking:
Page 226 of 416
in some situations, for instance on downhill oruphill grades.
Active Cruise Control withStop&Go function
Principle Using the Cruise Control, a desired speed and
a distance to a vehicle ahead can be adjusted using the buttons on the steering wheel.
General information
The system maintains the set speed on clear
roads. The vehicle accelerates or brakes auto
Page 228 of 416

Setting the functionWhen the system is active, press the
button repeatedly until the desired function is selected in the toolbar. The
toolbar for Assisted Driving mode is displayed
at the bottom of the instrument cluster.IconFunctionCruise Control with Distance Control.Depending on the equipment version,
cruise control with distance control
and Steering Assistant.
The selected function is shown in green.
Turning on
With Steering Assistant:
1. Press the button on the steering
wheel.2. If necessary, set the cruise control.
Without Steering Assistant:
Press the button on the steering
wheel.
The indicator lights in the instrument cluster light up and the mark on the speedometer is
set to the current speed.
Cruise control is active. The current speed is
maintained and stored as set speed.
If necessary, the Dynamic Stability Control willbe turned on.
Turning off
To switch off the system while stationary, step on brake pedal at the same time.
Press the button on the steering wheel:
With Steering Assistant.
Without Steering Assistant.
The displays turn off. The stored set speed is deleted.
Interrupting manually When active, press the button on the steering
wheel:
With Steering Assistant.
Without Steering Assistant.
If interrupting the system while stationary,
press on the brake pedal at the same time.
Interrupting automatically The system is automatically interrupted in the
following situations:
Page 317 of 416
In order to prevent rolling back when drivingoff, use the parking brake.1. Pull and release switch before driving
off.
The parking brake is set.2.Step on the accelerator pedal sufficiently to drive off.
Hills
A car
Page 319 of 416
Ensure that the trailer safety chain can move
freely and is not dragging on the ground.
Brake Controller
The vehicle manufacturer recommends that you have a Brake Controller installed by an
authorized service center or another qualified service center or repair shop.
Information on installing a Brake Controller can
be obtained from an authorized service center or another qualified service center or repairshop.
Seite 319Trailer towingDRIVING TIPS319
Online Edition for Part no. 01405A602E0
Page 387 of 416
brake disks and brake pads and protects them
against corrosion.
Chrome surfaces
Carefully clean Chrome surfaces, especially in
case of exposure to road salt, with plenty of
water and added auto shampoo as needed.
Rubber components Environmental influences can cause surfacecontamination of rubber parts and a loss ofgloss. Use only water and suitable cleaningagents for cleaning.
Treat especially worn rubber parts with rubber
care products at regular intervals. When clean