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Active Steering Assist
Function of Active Steering Assist
%
Active Steering Assist is country-dependent
and only available for vehicles with the Driv‐
ing Assistance Package.
Active Steering Assist is operational at speeds
up to 210 km/h and helps you to stay in the
centre of the lane by means of moderate steer‐
ing interventions. It uses the vehicle in front and
the lane markings as a reference depending on
the driven speed.
When the system is actively steering, the è
symbol is shown in green in the multifunction
display.
If the detection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches to passive mode. The system provides
no support in this case. During the transition
from active to passive status, the è symbol is
shown as enlarged and flashes yellow. Once the
system is passive, the è symbol is shown as
grey in the multifunction display.
Steering and touch detection
The driver is required to keep their hands on the
steering wheel at all times and be able to inter‐
vene at any time to correct the course of the
vehicle and keep it in lane. The driver must
expect a change from active to passive mode or
vice versa at any time.
If the system reaches a system limitation or the
driver has not steered the vehicle for a consider‐
able period of time or has removed their hands
from the steering wheel, the system will,
depending on the situation, alert the driver
either with a visual warning or a visual and
acoustic warning. Display
1
appears in the mul‐
tifunction display.
Driving and parking 207
If the driver does not steer the vehicle over a
long period, or has not taken hold of the steering
wheel, a repeated warning tone sounds in addi‐
tion to the visual warning message (depending
on the country).
The warning message does not appear or disap‐
pears if one of the following conditions are met:
The driver steers the vehicle.
R
The driver presses a steering wheel button or
R
operates Touch Control.
Active Steering Assist is only an aid. The driver is
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good time
and for staying in lane. Before changing lanes,
the driver must make sure that the neighbouring
lane is free (glance over the shoulder).
System limitations
Active Steering Assist has a limited steering tor‐
que for lateral guidance. In some cases, the
steering intervention is not sufficient to keep the
vehicle in the lane or to drive past exits.
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