If you leave your lane under certain circumstan-
ces, the vehicle will brake briefly on one side.
This is intended to help you return the vehicle to
the original lane.
If a lane-correcting brake application occurs,
display
:
appears in the multifunction display.
A lane-correcting brake application can be made
after driving over a lane marking recognised as
being solid or broken. Before this, a warning
must have been issued by means of intermittent
vibration through the steering wheel. In addi-
tion, a lane with lane markings on both sides
must be detected.
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, such as
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 deactivated
R
the transmission is not in position D
R
on vehicles with a trailer tow hitch, the elec-
trical connection to the trailer has been cor-
rectly established
R
the Offroad program is activated (vehicles
without the Off-Road Engineering package)
R
the Offroad or Offroad Plus drive program is
activated (vehicles with the Off-Road Engi-
neering package)
R
the LOW RANGE off-road gear is activated
(vehicles with the Off-Road Engineering pack-
age)
R
an obstacle has been detected in the lane in
which you are driving
R
a loss of tyre pressure or a defective tyre has
been detected and displayed
There is a possibility that the Active Lane Keep-
ing Assist could misjudge the given traffic sit-
uation. An inappropriate brake application may
be interrupted at any time if:
R
you steer slightly in the opposite direction
R
you switch on the turn signal
R
you clearly brake or accelerate
A lane-correcting brake application is interrup-
ted automatically if:
R
a driving safety system intervenes, such as
ESP
®
, PRE-SAFE
®
Brake or Active Blind Spot
Assist
R
lane markings are no longer detected
Activating Active Lane Keeping Assist
X
Activate Active Lane Keeping Assist using the
on-board computer; to do so, select
Stand‐
Stand‐
ard
ard
or
Adaptive
Adaptive
(
Y
page 251).
If you drive at speeds above 60 km/h and lane
markings are detected, the lines in the assis-
tance graphic display (
Y
page 249) are
shown in green. Active Lane Keeping Assist is
ready for use.
If
Standard
Standard
is selected, no warning vibration
occurs if:
R
you have switched on the turn signals. In
this event, the warnings are suppressed for
a certain period of time.
R
a driving safety system intervenes, such as
ABS, BAS or ESP
®
.
When
Adaptive
Adaptive
is selected, no warning vibra-
tion occurs if:
R
you have switched on the turn signals. In
this event, the warnings are suppressed for
a certain period of time.
R
a driving safety system intervenes, such as
ABS, BAS or ESP
®
.
R
you accelerate hard, e.g. kickdown.
226
Driving systems
Driving
and
parking