WARNING (Continued)
■
The lock tongue should only be inserted into the lock which is the correct
one for your seat. Wrong use of the safety belt will reduce its capacity to
protect and the risk of injury increases.
■
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 jack-
et) do not allow you to be correctly seated and impairs proper operation of
the seat belts.
■
Do not use clamps or similar items, which inhibit the safety belt locking
function. A seat belt which is too loose can result in injuries as your body is
moved forward by the kinetic energy produced in an accident and is then
suddenly held firm by the belt.
■
The seat belts for the rear seats can only fulfil their function reliably
when the seat backrests are correctly locked into position » page 84.
WARNING
Information on the care and maintenance of safety belts
■
The belt webbing must always be kept clean. Soiled belt webbing may im-
pair proper operation of the inertia reel » page 176, Safety belts.
■
The seat belts must not be removed or changed in any way. Do not at-
tempt 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 inspec-
ted. The anchorage points for the belts should also be checked.
Note
The national legal requirements must be observed when using seat belts.
The physical principle of a head-on collision
Fig. 4 Driver without a fastened seat belt/rear seat passenger without a
fastened seat belt
Read and observe on page 12 first.
Motion energy, so-called kinetic energy, is produced as soon as the vehicle is
moving, both for the vehicle and its 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 ac-
cident 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
exposed 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 parts of the interior of the car, such as the
steering wheel, dash panel, windscreen in ways which cannot be control-
led » Fig. 4 -
. In certain circumstances you could even be thrown out of the
vehicle, which could cause life threatening or even fatal injuries.
13
Seat belts