Smart Technologies smart forfour 454 - Manual (Page 33)

Observing occupant restraint systems
Page 32 Guidelines for Rescue Services, smart, 2006
Rescue
The airbag's air sack inflates within a few milli
seconds during the collision. The air sack reaches
its maximum volume in approximately 45 ms.
Immediately after maximum volume is reached, the
airbag starts to deflate. The gas escapes through
an air hole or through the fabric and the airbag
collapses (exception: windowbags).
Triggered airbags that are hanging down can be
pushed upwards or to the side so as to create the
necessary space for the rescue action. Airbags
do not need to be cut out or covered. A triggered
airbag has no medical risks for the occupants or
the rescue crew.
In cases where the rescue or treatment of casual
ties has to be carried out within the radius of an
untriggered airbag, the following points must be
observed:
• Switch off the ignition
• Disconnect or cut the electrical lines on the
battery (on both batteries in vehicles with two
batteries)
• Do not perform cutting work in the immediate
vicinity of the airbag units concerned
• If there are no occupants on the rear seats,
move the front seats as far to the rear as
possible
Avoid overheating the area around the airbag
unit, such as the steering wheel impact plate, the
instrument panel on the passenger side and the
door linings. If an airbag unit is heated to over
160 °C, it is likely to be triggered.