Visual and acoustic collision warning
If you switch on the turn signals to change lanes
and a vehicle is detected in the side monitoring
range, you receive a visual and acoustic collision
warning. You will then hear a double warning
tone and red warning lamp
:
flashes. If the turn
signal remains on, detected vehicles are indica-
ted by the flashing of red warning lamp
:
.
There are no further warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a side
impact in the monitoring range, a course-cor-
recting brake application is carried out. This is
designed to help you avoid a collision.
G
WARNING
A course-correcting brake application cannot
always prevent a collision. There is a risk of an
accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake appli-
cation. Always maintain a safe distance at the
sides.
If a course-correcting brake application occurs,
red warning lamp
:
flashes in the exterior mir-
ror and a dual warning tone sounds. In addition,
display
;
underlining the danger of a side col-
lision appears in the multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-cor-
recting brake application may be interrupted at
any time if you steer slightly in the opposite
direction or accelerate.
The course-correcting brake application is avail-
able in the speed range between 30 km/h and
200 km/h.
Either a course-correcting brake application
appropriate to the driving situation, or none at
all, may occur if:
R
there are vehicles or obstacles, e.g. crash
barriers, on both sides of your vehicle
R
a vehicle approaches too closely on the side
R
you have adopted a sporty driving style with
high cornering speeds
R
you clearly brake or accelerate
R
a driving safety system intervenes, such as
ESP
®
or PRE-SAFE
®
Brake
R
ESP
®
is deactivated
R
a loss of tyre pressure or a defective tyre is
detected
Activating Active Blind Spot Assist
X
Make sure that Active Blind Spot Assist is
activated in the on-board computer
(
Y
page 245).
X
Turn the key to position 2 in the ignition lock.
Warning lamps
:
in the exterior mirrors light
up red for approximately 1.5 seconds. Grey
radar waves propagating backwards appear
next to the vehicle in the assistance display in
the multifunction display.
Towing a trailer
If you couple up a trailer, make sure that you
have correctly established the electrical con-
nection. This can be accomplished by checking
the trailer lighting. Active Blind Spot Assist is
then deactivated. The radar waves next to the
vehicle are hidden in the assistance display. The
Active Blind Spot Assist not availa‐
Active Blind Spot Assist not availa‐
ble
ble when
when towing a
towing a trailer
trailer See
See Owner's
Owner's
Manual
Manual
message appears 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 windscreen. 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.
Driving systems
223
Dri
vi
ng
and
parkin
g
Z
