Operation Manual

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 268) 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 271).
X
Select Standard or Adaptive.
When Standard
is selected, no warning vibra-
tion occurs if:
R
you switch 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
is selected, no warning vibra-
tion occurs if:
R
you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R
a driving safety system intervenes, e.g.
ABS, BAS or ESP
®
.
R
you accelerate hard, e.g. kickdown.
R
you brake hard.
R
you steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
R
you cut the corner on a sharp bend.
In order that you are warned only when neces-
sary and in good time if you cross the lane mark-
ing, the system recognizes certain conditions
and warns you accordingly.
The warning vibration occurs earlier if:
R
you approach the outer lane marking on a
bend.
R
the road has very wide lanes, e.g. a highway.
R
the system recognizes solid lane markings.
The warning vibration occurs later if:
R
the road has narrow lanes
R
you cut the corner on a bend
Driving systems
239
Driving and parking
Z