SMART forfour - Head;Thorax Airbag

Head/thorax airbags
G
WARNING
Unsuitable seat covers can obstruct or pre-
vent the deployment of the airbags inte-
grated into the seats. Consequently, the
airbags cannot protect vehicle occupants
as they are designed to do. This poses an
increased risk of injury or even fatal
injury.
You should only use seat covers that have
been approved for the corresponding seats
by smart.
Head/thorax airbags : deploy next to the
outer bolster of the seat backrest.
When deployed, the head/thorax airbag
offers additional head and thorax protec-
tion. However,
it does not protect the arms.
Deployment of belt tensioners and air-
bags
Important safety notes
G
WARNING
After the airbag deploys, the airbag parts
are hot. There is a risk of injury.
Do not touch the airbag parts. Have a
deployed airbag replaced at a qualified
specialist workshop as soon as possible.
G
WARNING
Pyrotechnic seat belt tensioners that have
been deployed are no longer operational
and are unable to perform their intended
protective function. This poses an
increased risk of injury or even fatal
injury.
Therefore, have pyrotechnic belt tension-
ers which
have been triggered immediately
replaced at a qualified specialist work-
shop.
smart recommends that you have the vehicle
towed to a qualified specialist workshop
after an accident. Take this into account,
particularly if a seat belt tensioner was
triggered or an airbag was deployed.
If the belt tensioners are triggered or an
airbag is deployed, you will hear a bang,
and a small amount of powder may also be
released. The 6 restraint system warn-
ing lamp lights up.
Only in rare cases will the bang affect your
hearing. In general, the powder released is
not hazardous to health but may cause
short-term breathing difficulties to per-
sons suffering from asthma or other pul-
monary conditions. Provided it is safe to
do so, you should leave the vehicle imme-
diately or open the window in order to pre-
vent breathing difficulties.
Method of operation
During the first stage of a collision, the
restraint system control unit evaluates
important physical data relating to vehi-
cle deceleration or acceleration, such as:
R
duration
R
direction
R
intensity
Based on the evaluation of this data, the
restraint system control unit triggers the
seat belt
tensioners in the event of a head-
on or rear collision.
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Occupant safety
>> Safety.