Mercedes-Benz CL2012 Operator's Manual page 69

At speeds up to approximately 40 mph
(70 km/h), PRE-SAFE
to stationary obstacles, for example stopped
or parked vehicles.
If you approach an obstacle and PRE-SAFE
Brake detects a risk of collision, the system
will initially alert you both visually and
acoustically. If you do not brake or take
evasive action, the system will warn you by
automatically braking the vehicle gently. If
there is an increased risk of collision,
preventative passenger protection measures
®
(PRE-SAFE ) are activated (
risk of collision remains at speeds of over
20 mph(30 km/h) and you do not brake, take
evasive action or accelerate significantly, the
vehicle may perform automatic braking up to
emergency braking. Automatic emergency
braking is not performed until immediately
prior to an accident that can no longer be
avoided.
G
WARNING
®
Even if PRE-SAFE Brake slows the vehicle
before an imminent rear-end collision, the
system cannot avert a collision without the
intervention of the driver. There is a risk of an
accident. Brake according to the situation or
take evasive action. Delayed intervention by
the driver can lead to an accident.
G
WARNING
®
PRE-SAFE Brake cannot always detect
complex traffic situations properly.
In these cases, PRE-SAFE(R) Brake may:
give an unnecessary warning and then
R
brake the vehicle
neither give a warning nor intervene
R
There is a risk of an accident. Always pay
particular attention to the traffic situation and
be ready to brake, especially if PRE-SAFE(R)
Brake warns you. Terminate the intervention
in a non-critical driving situation.
®
Brake can also react
Y page 51). If the
I n f o r m a t i o n P r o v i d e d b y :
Driving safety systems
In particular, the detection of obstacles can
be impaired if there is:
dirt on the sensors or anything else
R
covering the sensors
®
snow or heavy rain
R
interference by other radar sources
R
the possibility of strong radar reflections,
R
for example in parking garages
a narrow vehicle traveling in front, e.g. a
R
motorbike
a vehicle traveling in front on a different line
R
G
WARNING
®
PRE-SAFE Brake does not react:
to people or animals
R
to oncoming vehicles
R
to crossing traffic
R
in curves
R
As a result, PRE-SAFE
intervene in critical situations. There is a risk
of an accident. Always pay careful attention
to the traffic situation and be ready to brake.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a
collision, you must apply the brakes yourself.
X
To activate/deactivate: activate or
deactivate PRE-SAFE
board computer (
After activation, the Ä symbol is
displayed on the left in the instrument
cluster.
®
For PRE-SAFE
driving, the radar sensor system must be
Y
switched on ( page 344) and operational.
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle.
®
Brake cannot
®
Brake in the on-
Y page 342).
Brake to assist you when
67
Z