Mercedes-Benz E-Class Coupe Operator's Manual page 68

Driving safety systems
66
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with, alter, or use
in any non-approved way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
With the help of the radar sensor system,
®
PRE-SAFE Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
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 and you do not brake,
take evasive action or accelerate
significantly, the vehicle may perform
automatic 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
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.
®
Brake can also react
Y page 48). If the
®
Brake slows the vehicle
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.
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 (
The Ä symbol appears in the
multifunction display as long as the HOLD
function is not activated (
On vehicles with Parking Guidance, the
Ä symbol is displayed when
I n f o r ma t i o n P r o v i d e d b y :
®
Brake cannot
®
Brake in the on-
Y page 207).
Y page 176).