If a lane-correcting brake application occurs,
display
:
appears in the multifunction display.
The brake application also slightly reduces vehi-
cle speed.
A lane-correcting brake application can be made
after driving over a lane marking recognized as
being solid or broken. Before this, a warning
must be given by means of intermittent vibration
in the steering wheel. In addition, a lane with
lane markings on both sides must be recog-
nized.
In the case of a broken lane marking being
detected, a lane-correcting brake application
can only be made if a vehicle has been detected
in the adjacent lane. The following vehicles can
have an influence on brake application: oncom-
ing traffic, vehicles that are overtaking and vehi-
cles that are driving parallel to your vehicle.
i
A further lane-correcting brake application
can only occur after your vehicle has returned
to the original lane.
No lane-correcting brake application occurs if:
R
you clearly and actively steer, brake or accel-
erate.
R
you cut the corner on a sharp bend.
R
you have switched on the turn signal.
R
a driving safety system intervenes, e.g. ESP
®
,
PRE-SAFE
®
Brake or Active Blind Spot Assist.
R
you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration.
R
ESP
®
is switched off.
R
the transmission is not in position D.
R
a loss of tire pressure or a defective tire has
been detected and displayed.
R
an obstacle in the lane in which you are driving
has been detected.
Active Lane Keeping Assist may not detect other
road users or traffic situations. An inappropriate
brake application may be interrupted at any time
if you:
R
steer slightly in the opposite direction
R
switch on the turn signal
R
clearly brake or accelerate
A lane-correcting brake application is interrup-
ted automatically if:
R
a driving safety system intervenes, e.g. ESP
®
,
PRE-SAFE
®
Brake or Active Blind Spot Assist.
R
lane markings can no longer be recognized.
Switching on Active Lane Keeping Assist
X
Press button
;
.
Indicator lamp
:
lights up. The
Lane Keep‐
ing Assist On
message appears in the mul-
tifunction display. If all conditions have been
satisfied, a warning or steering intervention
may be made.
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display
(
Y
page 217) are shown in green. Active Lane
Keeping Assist is ready for use.
X
To switch off: press button
;
.
Indicator lamp
:
goes out. The Active Lane
Keeping Assist is deactivated. The
Lane
Keeping Assist Off
message appears in
the multifunction display.
Selecting Standard or Adaptive setting
X
In the
DriveAssist
menu on the on-board
computer, select the
Active Lane Keep‐
ing Assist
function (
Y
page 220).
X
Select
Standard
or
Adaptive
.
When
Standard
is selected, no warning vibra-
tion occurs if:
Driving systems
203
Drivi
ng
and
parking
Z
