Active Lane Keeping Assist - Mercedes-Benz C-CLASS Operator's Manual

recting brake application may be interrupted at
any time by countersteering slightly or acceler-
ating.
The course-correcting brake application is avail-
able in the speed range between 20 mph
(30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-cor-
recting 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 vehicle.
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. ESP
R
®
or PRE-SAFE Brake.
®
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 219).
Y
Switch on the ignition.
X
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 graphic in
the multifunction display ;.

Active Lane Keeping Assist

General notes
Active Lane Keeping Assist monitors the area in
front of your vehicle by means of multifunction
camera : at the top of the windshield. Various
different areas to the front, rear and side of your
vehicle are also monitored with the aid of the
radar sensor system. Active Lane Keeping
Assist detects lane markings on the road and
can warn you before you leave your lane unin-
tentionally. If you do not react to the warning, a
lane-correcting application of the brakes can
bring the vehicle back into the original lane.
This function is available in the range between
40 mph and 120 mph (60 km/h and 200 km/h).
Important safety notes
If you fail to adapt your driving style, Active Lane
Keeping Assist can neither reduce the risk of an
accident nor override the laws of physics. Active
Lane Keeping Assist cannot take account of
road and weather conditions. It may not recog-
nize 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 continuously
keep your vehicle in its lane.
G
WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
give an unnecessary warning and then
R
make a course-correcting brake application
to the vehicle
not give a warning or intervene
R
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not function
if:
there is poor visibility, e.g. due to insufficient
R
illumination of the road, or due to snow, rain,
fog or spray
there is glare, e.g. from oncoming traffic, the
R
sun or reflection from other vehicles (e.g. if
the road surface is wet)
Driving systems
203
Z