Mercedes-Benz SLK 2014, Owner'S Manual

Page: 70 / 357

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.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a col-
lision, you must apply the brakes yourself.
G WARNING
PRE-SAFE ® Brake does not react:
R
to people or 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, detec-
tion 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
Following damage to the front end of the vehi-
cle, have the radar sensor settings and oper-
ation checked at a qualified specialist work-
shop. This also applies to collisions at slow
speeds where there is no visible damage to
the front of the vehicle.
Function
X
To activate/deactivate: activate or deac-
tivate PRE-SAFE
® Brake in the on-board
computer (
Y
page 211).
Vehicles with a black and white multi-
function display: when PRE-SAFE
® Brake
is activated, the Ä symbol appears in
the status overview in the multifunction
display.
Vehicles with a colour multifunction
display: when PRE-SAFE
®
Brake is deacti-
vated, the æ symbol appears in the
assistance graphic in the multifunction dis-
play.
This function will issue a warning if:
R
at a speed of approximately 30 km/h or
higher, the distance maintained to the vehi-
cle travelling in front is insufficient for sev-
eral seconds.
The
· distance warning lamp then lights
up in the instrument cluster.
R
at a speed of approximately 7 km/h or
higher, you rapidly approach a vehicle in
front.
An intermittent warning tone will then
sound and the · distance warning lamp
will light up in the instrument cluster.
X
Brake immediately to defuse the situation.
or
X
Take evasive action provided it is safe to do
so.
The PRE-SAFE ® Brake function can also brake
the vehicle automatically under the following
conditions:
R
the driver and front passenger have their
seat belts fastened
and
R
the vehicle speed is between approx-
imately 7 km/h and 200 km/h
Up to a speed of approximately 70 km/h,
PRE-SAFE ® Brake can also detect stationary
objects. Examples of stationary objects are
stopped or parked vehicles.
Driving safety systems
67
Safety
Z