SMART 453 Series User Manual

76 Introduction of the New smart fortwo coupé and smart forfour | Model Series 453
Active/passive safety
Safety
Restraint systems
Particularly effective protection is achieved through the inter-
action of the body, seat belts, airbag systems and sensors.
The forward displacement areas for the occupants are desi-
gned so that there is a suitable deceleration travel distance
for the occupants in the event of a collision in order to keep
accident stresses as low as possible.
Seat belts
The driver and front passenger seats are each equipped with
a three-point seat belt with belt force limitation and pyrotech-
nical emergency tensioning retractor as standard. On the
sedan, the outer rear seats are equipped with a three-point
seat belt with seat belt retractor with tensioning and belt
force limitation. The center seat has a three-point seat belt of
standard design.
In the USA and Canada, the C453 is additionally equipped
with anchor fitting tensioners and two-stage, switchable belt
force limiters for the driver and front passenger.
Child restraint systems
The ISOFIX system incl. Top Tether connection, which allows
certain child seats to be connected to the vehicle, is provided
as standard equipment on the front passenger seat and, on
the sedan, on the rear seats.
Driver/front passenger airbag, kneebag
The smart is equipped with a driver airbag, driving kneebag
and front passenger airbag as standard. The gas generators
for the driver airbag and front passenger airbag operate on a
single-stage basis. The kneebag has a positive influence on
occupant kinematics in the event of a frontal impact and thus
offers the driver additional protection potential in many fron-
tal impact situations.
In the USA and Canada national versions of the smart fortwo
coupé, two-stage driver and front passenger airbags are
used.
The front passenger airbag is equipped with an additional
third pyrotechnical unit in order to adjust the hardness of the
airbag to the particular load case and occupant. A front pas-
senger kneebag is also installed in these national versions.
Sidebags
The sidebags (head/thorax bags) are standard equipment
and are located in the backrest of the driver and front pas-
senger seat. They cover the head and chest of the respective
occupants from the side. When triggered in side collisions,
they can minimize the loads applied to the chest area and re-
duce the risk of the occupant's head directly hitting the side
window or dangerous objects e.g. power poles, trees or parts
of a colliding vehicle.
The sidebags are triggered on the impact side if the central
electronic unit detects a side crash of a certain severity level.
Furthermore, emergency tensioning retractors are triggered
on both the impact side and the opposite side (depending
on the seat belt status on the USA national version). A reel
tensioner and anchor fitting tensioner on the impact side and
the opposite side are additionally triggered on the USA natio-
nal version.
On the USA and Canada national versions of the smart
fortwo coupé, thorax/pelvis airbags and window airbags are
used instead of the head/thorax airbags (same integration,
different protection area). The window airbags cover the
whole area between the A and B-pillar at the sides.
– This printout will not be recorded by the update service. Status: 06/2014 –

SMART 453 Series Specifications

General

Brand	SMART
Model	453 Series
Category	Automobile
Language	English