Mercedes-Benz E-Class 2010, Owner'S Manual

Page: 63 / 333

R
interference by other radar sources
R
the possibility of strong radar reflections,
for example in multi-storey car parks
PRE-SAFE ® Brake does not react to persons,
animals, oncoming vehicles, crossing traffic
or when cornering.
PRE-SAFE
®
Brake may not detect narrow
vehicles such as motorcycles and vehicles
driving on a different line.
G
Risk of accident
Depending on the current speed, PRE-SAFE
®
Brake decelerates your vehicle by up to
4 m/s
2
before performing possible emer-
gency braking. This is equivalent to approx-
imately 40 % of the maximum braking power
of the vehicle. You must additionally apply the
brakes yourself in order to prevent a collision
or minimise an impact. Automatic emergency
braking is not performed until immediately
prior to an accident in the event that you are
unable to avoid one by, for instance, taking
evasive action.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a col-
lision, you must apply the brakes yourself.
At speeds up to approximately 70 km/h,
PRE-SAFE
®
Brake can also detect stationary
obstacles, for example stopped or parked
vehicles.
G
Risk of accident
If, in a critical driving situation, you do not
receive a visual and acoustic warning:
R PRE-SAFE
®
Brake did not detect the risk of
a collision
R PRE-SAFE
®
Brake is switched off
R PRE-SAFE ® Brake has failed
You must then brake to avoid a collision.
X
To activate: activate PRE-SAFE
®
Brake in
the on-board computer (
Y
page 203).
The Ä symbol appears in the lower mul-
tifunction display, as long as the HOLD
function is not activated (
Y
page 172).
On vehicles with parking guidance, the P
gear must be engaged for the icon to be
displayed.
The radar sensor system is switched off auto-
matically in the vicinity of radio telescope
facilities (
Y
page 324).
For PRE-SAFE
®
Brake to assist you when driv-
ing, the radar sensor system must be
switched on and operational.
PRE-SAFE
® Brake does not always detect
complex traffic situations properly. You can
terminate the braking action of PRE-SAFE
®
Brake in a non-critical driving situation at any
time if:
R
an acoustic and visual warning occurs
R
the vehicle brakes
To end this, you can either depress the accel-
erator pedal further, activate kickdown or
release the brake pedal.
The braking action of PRE-SAFE
®
Brake is
ended automatically if:
R
you manoeuvre to avoid the obstacle
R
you drive slower than approximately
15 km/h
R
there is no longer an obstacle detected in
front of your vehicle
R
there is no longer any danger of a collision
Following a collision or collision-related dam-
age to the front end of the vehicle, have the
configuration and operation of the radar sen-
sors checked. Choose a qualified specialist
workshop for this which has the necessary
specialist knowledge and tools for the work
required. Mercedes-Benz recommends that
you use a Mercedes-Benz Service Centre for
this purpose.
Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
60
Anti-theft systems
Saf
et
y
BA 207 ECE ÄJ 2010/1a; 1; 2, en-GB
mkalafa Version: 3.0.2.11
2010-01-26T13:03:22+01:00 - Seite 60