For PRE-SAFE
®
Brake to assist you when driving,
the radar sensor system and the camera system
must be switched on and operational.
With the help of the radar sensor system and the
camera system, PRE-SAFE
®
Brake can detect
obstacles that are in front of your vehicle for an
extended period of time.
In addition, pedestrians in the path of your vehi-
cle can be detected.
PRE-SAFE
®
Brake detects pedestrians using
typical characteristics such as the body con-
tours and posture of a person standing upright.
i
Observe the restrictions described in the
"Important safety notes" section
(
Y
page 79).
Important safety notes
G
WARNING
PRE-SAFE
®
Brake will initially brake your vehi-
cle by a partial application of the brakes if a
danger of collision is detected. There may be
a collision unless you brake yourself. Even
after subsequent full application of the brakes
a collision cannot always be avoided, partic-
ularly when approaching at too high a speed.
There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action, provided it is safe to do
so.
In the event of a partial application of the brakes,
the vehicle is braked with up to 50% of the full
braking pressure.
G
WARNING
PRE-SAFE
®
Brake cannot always clearly iden-
tify objects and complex traffic conditions.
In these cases, PRE-SAFE
®
Brake may:
R
give an unnecessary warning and then
brake the vehicle
R
neither give a warning nor intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE
®
Brake warns you. Terminate the
intervention in a non-critical driving situation.
G
WARNING
PRE-SAFE
®
Brake cannot always clearly iden-
tify people, especially if they are moving. In
these cases, PRE-SAFE
®
Brake cannot inter-
vene. There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE
®
Brake warns you.
In order to maintain the appropriate distance to
the vehicle in front and thus prevent a collision,
you must apply the brakes yourself.
G
WARNING
PRE-SAFE
®
Brake does not react:
R
to small people, e.g. children
R
to animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
As a result, PRE-SAFE
®
Brake may neither
give warnings nor intervene in all critical sit-
uations. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In the event of snowfall or heavy rain, detection
can be impaired.
Detection by the radar sensor system is also
impaired in the event of:
R
dirt on the sensors or obscured sensors
R
interference by other radar sources
R
strong radar reflections, for example, in multi-
storey car parks
R
a narrow vehicle travelling in front, e.g. a
motorcycle
R
a vehicle travelling in front on a different line
Detection by the camera system is also impaired
in the event of:
R
dirt on the camera or if the camera is covered
R
glare on the camera system, e.g. from the sun
being low in the sky
Driving safety systems
79
Safe
ty
Z
