PRE-SAFE®
Safety
89
Introduction of the New E-Class, Model Series 212 Sedan
b
PRE-SAFE
®
preventive occupant protection system
The PRE-SAFE
®
system is available as standard and
offers an effective combination of active and passive
safety. The instant that a potential accident situation
is detected, preventive measures can be initiated to
further improve the safety of the occupants.
PRE-SAFE
®
can be activated by:
• Emergency braking: Rapid operation of the brake
pedal indicating a scare reaction by the driver
• Panic brake applications: The deceleration desired
by the driver significantly exceeds the vehicle
deceleration that is physically possible, e.g. on
slippery roads, aquaplaning, ice or snow
• Oversteer: The rear of the vehicle breaks away,
combined with severe stabilization attempts by the
ESP system
• Understeer: The vehicle pushes over the front
wheels over a period of time
• Critical steering movements: Rapid steering
movements at high speeds above approx.
140 km / h, which indicate a scare reaction by the
driver and which may lead to instability of the
vehicle
Vehicles with the optional DISTRONIC PLUS feature a
new special function that can detect imminent frontal
collisions under certain conditions on the basis of data
from the short-range radar sensors. This extends the
range of danger situations that can be detected by
PRE-SAFE
®
:
• Detection of collisions when cornering
• Detection of collisions with oncoming traffic
These danger situations are recognized without prior
emergency braking or skidding.
Depending on the equipment installed, the following
measures can be activated for preventive occupant
protection:
• Initial motorized seat belt tightening for the driver
and front passenger
• Positioning of the front passenger seat to a more
favorable position in case of a crash
• Automatic closing of front and rear side windows,
the tilting / sliding roof (special equipment) or the
panoramic sliding sunroof (special equipment),
except for a small gap, to protect the occupants
from objects penetrating the passenger cell and to
prevent their heads or arms from swinging outside
through an opening
If an accident is avoided, the front belts are relaxed
again when the vehicle is back inside the critical limits.
The systems involved can then be restored to the
desired settings.
– This printout will not be recorded by the update service. Status: 01 / 2009 –
