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In these cases, PRE-SAFE
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
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:
to people or animals
R
to oncoming vehicles
R
to crossing traffic
R
when cornering
R
As a result, PRE-SAFE
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:
dirt on the sensors or obscured sensors
R
interference by other radar sources
R
strong radar reflections, for example, in
R
multi-storey car parks
a narrow vehicle travelling in front, e.g. a
R
motorcycle
a vehicle travelling in front on a different
R
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.
®
Brake may:
®
Brake may neither
Driving safety systems
Function
To activate/deactivate: activate or deac-
X
®
tivate PRE-SAFE
Brake in the on-board
computer (
page 211).
Y
Vehicles with a black and white multi-
function display: when PRE-SAFE
is activated, the Ä symbol appears in
the status overview in the multifunction
display.
Vehicles with a colour multifunction
display: when PRE-SAFE
vated, the æ symbol appears in the
assistance graphic in the multifunction dis-
play.
This function will issue a warning if:
at a speed of approximately 30 km/h or
R
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.
at a speed of approximately 7 km/h or
R
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.
Brake immediately to defuse the situation.
X
or
Take evasive action provided it is safe to do
X
so.
®
The PRE-SAFE
Brake function can also brake
the vehicle automatically under the following
conditions:
the driver and front passenger have their
R
seat belts fastened
and
the vehicle speed is between approx-
R
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.
67
®
Brake
®
Brake is deacti-
Z
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