Seat Belts; The Physical Principle Of A Frontal Collision - KODA Citigo Owner's Manual

WARNING (Continued)
The slot of the belt tongue must not be blocked, otherwise the belt tongue
■
will not lock in place properly.
Many layers of clothing and loose clothing (e. g. a winter coat over a jacket)
■
do not allow you to be correctly seated and impairs proper operation of the

seat belts.

It is prohibited to use clamps or other objects to adjust seat belts (e. g. for
■
shortening the belts for smaller persons).
The seat belts for the rear seats can only fulfil their function reliably when
■
the seat backrests are correctly locked into position
rear seats forward.
WARNING
Observe the following instructions for proper maintenance of the seat belts.
The belt webbing must always be kept clean. Soiled belt webbing may im-
■
pair proper operation of the inertia reel
The seat belts must not be removed or changed in any way. Do not attempt
■
to repair the seat belts yourself.
Check the condition of all the seat belts on a regular basis. If any damage to
■
the seat belts, seat belt connections, inertia reel or the lock is detected, the
relevant seat belt must be replaced by a specialist garage.
Damaged seat belts which have been subjected to stress in an accident and
■
were therefore stretched, must be replaced – this is best done by a specialist
garage. The anchorage points of the belts must also be inspected. The an-
chorage points for the belts should also be checked.
Note
The national legal requirements must be observed when using seat belts.
92
Safety
» page 43, Folding the
» page 112, Seat belts.

The physical principle of a frontal collision

Fig. 88 Driver without a fastened seat belt/rear passenger without a fas-
tened seat belt

First read and observe the introductory information and safety warn-
ings on page 91.
As soon as the vehicle is moving, so-called kinetic energy (the energy of motion)
is produced both in terms of the car as well as in terms of the occupants.
The magnitude of this kinetic energy depends essentially on the speed at which
the vehicle is travelling and on the weight of the vehicle including the occupants.
The greater the speed and weight increase, the greater the amount of energy
which has to be absorbed in the event of an accident.
The speed of the vehicle is the most important factor. Doubling the speed of the
vehicle from 25 km/h up to 50 km/hour increases the kinetic energy four times.
The idea that it is possible to support your body with your hands in a minor acci-
dent is incorrect. Even in a collision at only a low speed, the forces acting on the
body are such that it is no longer possible to support your body.

Even if you only drive at a speed of 30-50 km/h, the forces that your body is ex-
posed to in the event of an accident can exceed a metric ton (1000 kg).
For example, a person's weight of 80 kg "increases" to 4.8 tons (4800 kg) at
50 km/h.
In the event of a frontal collision, occupants of the car not wearing a seat belt, are
thrown forward and strike in an uncontrolled way parts of the interior of the car,
such as steering wheel, dash panel or windscreen
stances you could even be thrown out of the vehicle, which could cause life
threatening or even fatal injuries.
» Fig. 88 – . In certain circum-
