Active Lane Keeping Assist - Mercedes-Benz S-Class Operator's Manual

If a course-correcting brake application
occurs, red warning lamp : flashes in the
exterior mirror and a dual warning tone
sounds. In addition, display ; underlining
the danger of a side collision appears in the
multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-
correcting brake application may be interrup-
ted at any time if you steer slightly in the
opposite direction or accelerate.
The course-correcting brake application is
available in the speed range between 20 mph
(30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-
correcting brake application adapted to the
driving situation occurs if:
there are vehicles or obstacles, e.g. crash
R
barriers, located on both sides of your vehi-
cle.
a vehicle approaches you too closely at the
R
side.
you have adopted a sporty driving style with
R
high cornering speeds.
you clearly brake or accelerate.
R
a driving safety system intervenes, e.g.
R
® ®
ESP or PRE-SAFE
®
ESP is switched off.
R
a loss of tire pressure or a defective tire is
R
detected.
Switching on Active Blind Spot Assist
Make sure that Active Blind Spot Assist is
X
activated in the on-board computer
( page 309).
Y
Turn the SmartKey to position 2 in the igni-
X
tion lock.
Warning lamps : in the exterior mirrors
light up red for approximately 1.5 seconds.
Gray radar waves propagating backwards
appear next to the vehicle in the assistance
display in the multifunction display.
Brake.
Driving systems

Active Lane Keeping Assist

General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera
system : at the top of the windshield. Vari-
ous different areas to the front, rear and side
of your vehicle are also monitored with the aid
of the radar sensor system. Active Lane Keep-
ing Assist detects lane markings on the road
and can warn you before you leave your lane
unintentionally. If you do not react to the
warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane.
If you select km km in the
Speed-/Odometer: Speed-/Odometer: function on the on-board
computer ( page 312), Active Lane Keeping
Y
Assist is activated starting at a speed of
60 km/h. If the miles miles
the assistance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys-
ics. Active Lane Keeping Assist cannot take
account of road and weather conditions. It
may not recognize traffic situations. Active
Lane Keeping Assist is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane.
Display Unit Display Unit
display unit is selected,
Z
273