2005 SKODA OCTAVIA Owner's Manual

Seat belts
184
The physical principle of a frontal
collision
The physical principle of a frontal accident can be explained quite simply: 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 and 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, nevertheless, 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 common opinion that it is possible to support your body in a minor
accident with your hands, 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 within the range from 30 km/hour to 50
km/hour, the forces which are produced on your body in the event of an
accident can easily exceed 10,000 N (Newton). This equals a weight of
one tonne (1 000 kg).
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 inte-
rior of the car, such as steering wheel, dash panel, windscreen,
⇒fig. 155 .
The occupants of a vehicle who have not fastened their seat belts may
even be thrown out of the vehicle. This can result in fatal injuries.
It is also important that rear seat occupants fasten their seat belts as they
will otherwise be thrown through the vehicle in an uncontrolled manner in
the event of an accident A rear seat passenger who has not fastened the
seat belt is a danger not only to himself but also for those seated at the
front ⇒fig. 156 .
Fig. 155 The driver is
thrown forward if not
wearing a belt
Fig. 156 The rear seat
occupant is thrown
forward if not wearing a
belt
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Seat belts185
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Important safety information regarding
the use of seat belts
The correct use of the seat belts considerably reduces the
risk of injury!
WARNING
•The belt webbing must not be jammed in-between at any point
or twisted, or chafe against any sharp edges.
•It is important that the belt webb ing is properly routed if the seat
belts are to offer their maximum protection ⇒page 186, “How are
seat belts correctly fastened?”.
•No two persons (also not children) should ever use a single seat
belt together.
•The maximum protection which seat belts can offer is only
achieved if you are correctly seated ⇒page 179, “Correct seated
position”.
•The belt webbing must not run across solid or fragile objects
(e.g. spectacles, ball-point pens, keys etc.) as this may be a cause
of injuries.
•Bulky, loose clothing (e.g. a winter coat over a jacket) does 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 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 backrests of the front seats must not be tilted too far to the
rear otherwise the seatbelts can lose their effectiveness.
•The belt webbing must always be kept clean. Soiled belt
webbing may impair proper operation of the inertia reel ⇒page 240,
“Seat belts”.
•The slot of the belt tongue must not be blocked by paper or
similar objects otherwise the belt tongue will not lock in place prop-
erly.
•Inspect the seat belts regularly to ensure they are in good condi-
tion. If you find seat belts which have damage to the seat belt
webbing, seat belt connections, to the inertia reels or to the lock,
the relevant safety belt must be replaced by a specialist garage.
•The seat belts must not be removed or changed in any way. Do
not make an attempt to repair the seat belts yourself.
•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 anchorage points for the belts should
also be checked.
•In certain countries it is possible to use seat belts which differ
in terms of their operation from the seat belts which are described
on the pages which follow.
WARNING (continued)
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Seat belts
186
How are seat belts correctly fastened?
Fastening a three-point seat belt
Fasten your seat belt before starting!
– Correctly adjust the front seat and the head restraint before
fastening your seat belt ⇒page 82.
– Slowly pull the belt webbing at the tongue of the lock over your chest and pelvis ⇒ .
– Insert the tongue of the lock into the seat belt buckle belonging to the seat until it is heard to lock in place.
– Pull on the belt to check that it has also reliably engaged in the lock.
Each three-point seat belt is equipped with an inertia reel. This inertia reel
offers you complete freedom of movement if the belt is unreeled slowly. If
the brakes are applied suddenly, the inertia reel will block. It also blocks
the belts when the car accelerates, when driving uphill and when
cornering.
Expectant mothers must also wear the seat belt ⇒.
WARNING
•The shoulder part of the seat belt must never run across your
neck but must run approximately over the middle of the shoulder
and fit snugly against the chest. The lap part of the belt must run
across the hip and must never be routed across the stomach. It
must always fit snugly ⇒fig. 157. Adjust the belt webbing as
required.
•The lap part of the belt should be positioned as low as possible
at the pelvis of an expectant mother in order to avoid exerting any
pressure on the lower abdomen.
•Always ensure that the webbing of the seat belts is properly
routed. Seat belts which are not correctly adjusted can themselves
cause injuries even in minor accidents.
Fig. 157 Routing of
webbing over the
shoulders and the lap
belt
Fig. 158 Routing of
belt webbing for an
expectant mother
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Seat belts187
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
•A seat belt which is hanging 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.
•Only insert the lock tongue into the lock which is the correct one
for your seat. This will affect the protection which the belt offers
and increase the risk of an injury.
Seat belt height adjuster
The seat belt height adjuster makes it possible for you to adapt
the routing of the three-point seat belt in the area of the shoulder
to match your body size.
– Move the height adjuster in the desired direction up or down ⇒fig. 159 . – Then pull firmly on the belt to ensure that the seat belt height
adjuster has correctly locked in place.
WARNING
Adjust the height of the belt in such a way that the shoulder part of
the belt is positioned approximately across the middle of your
shoulder - on no account across your neck.
Note
It is also possible to adapt the routing of the belt webbing at the front seats
by adjusting the height of the seat.
Taking seat belts off
WARNING (continued)
Fig. 159 Front seat:
Seat belt height
adjuster
Fig. 160 Releasing
lock tongue from belt
lock
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Seat belts
188
– Press the red button in the belt lock ⇒fig. 160. The spring
force causes the tongue of the lock to jump out.
– Guide the belt back with your hand to enable the inertia reel to wind up the belt webbing more easily.
A plastic knob in the belt webbing holds the belt tongue in a position which
is easy to get hold of.
Three-point safety belt for the middle rear seat
Your car is equipped as standard with the three-point seat belt in the
middle rear seat. It is used in the same way as the three-point seat belts
on the left and right (at front and rear).
WARNING
The three-point safety belt for the rear middle seat can only fulfil its
function reliably when the backrests are correctly locked into posi-
tion ⇒page 90.
Belt tensioners
Safety for the driver and passengers wearing their seat belts, is
enhanced by the belt tensioners fitted to the inertia reels of the front and
rear side three-point seat belts, in addition to the protection afforded by
the airbag system. The three-point seat belts are automatically tensioned in the event of a
frontal collision of a certain severity. The belt tensioners can also be
deployed if the seat belts are not fastened.
The belt tensioner is deployed in the event of a frontal collision of major
severity. A powder charge is ignited in the inertia reels during deployment.
The belt webbing is pulled into the inertia reels by a mechanical system
and the belt is tensioned.
Belt tensioners are not activated in the event of minor frontal collisions,
side and rear-end collisions, in the case of a rollover and also not in acci-
dents in which no major forces are produced from the front.
WARNING
•The service life of seat belts and belt tensioners is 15 years from
the date of manufacture of the vehicle. It is then necessary to have
the seat belts replaced by a specialist garage.
•Any work on the system includi ng removal and installation of
system components because of other repair work, must only be
carried out by a specialist garage.
•The protective function of the system is only adequate for a
single accident. If the belt tensioners have been deployed, it is then
necessary to replace the entire system.
•The Owner's Manual must also be handed over to the new
owner if the vehicle is sold.
Note
•Smoke is generated when the belt tensioners are deployed. This is not
an indication of a fire in the vehicle.
•It is essential to pay attention to relevant safety regulations if the
vehicle or individual parts of the system are scrapped. Specialist garages
are familiar with these regulations and will be able to provide you with
detailed information in this respect.
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Seat belts189
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
•When disposing of vehicle or parts of the system, it is important to
comply with the national legal requirements.
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Airbag system
190
Airbag system
Description of the airbag system
General information on the airbag system
The front airbag system is complementary to the three-point seat belts
and offers additional protection for the head and chest area of the driver
and passenger in the event of a frontal collision.
In the case of a violent side crash, the side* and head* airbags reduce the
risk of injuries to the occupants on the part of the body facing the side of
the accident ⇒.
The airbag system is only functional after the ignition has been switched
on.
The operational readiness of the airbag system is monitored electroni-
cally. The airbag warning light comes on for a few seconds each time the
ignition is switched on.
The airbag system (according to vehicle equipment) essentially
consists of:
•an electronic control unit,
•front airbag for the driver and the front seat passenger*,
•side airbags*,
•head airbags*,
•an airbag warning light in the instrument cluster,
•a front passenger airbag switch* ⇒page 200,
•an indicator light showing a switched-off front passenger airbag* in the
middle of the dash panel ⇒page 200. A fault in the airbag system exists if:
•the airbag indicator light does not light up when the ignition is switched
on,
•the warning light does not go out after about 4 seconds after the igni-
tion is switched on,
•the airbag indicator light goes out and comes on again after the ignition
is switched on,
•the airbag indicator light comes on or flickers when driving,
•an airbag indicator light showing a switched-off front passenger
airbag* in the middle of the dash panel flashes.
WARNING
•To enable the occupants of a car to be protected with the
greatest possible effect when the airbag is deployed, the front
seats must be ⇒page 179, “Correct seated position” correctly
adjusted to match the body size of the occupant.
•If you do not fasten the seat belts when driving, lean too far
forward or adopt an incorrect seated position, you are exposing
yourself to increased risk of injury in the event of an accident.
•Have the airbag system checked immediately by a specialist
garage if a fault exists. Otherwise, there is a risk of the airbag not
being activated in the event of an accident.
•No modifications of any kind may be made to parts of the airbag
system.
•It is prohibited to manipulate individual parts of the airbag
system as this might result in the airbag being deployed.
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Airbag system191
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
•The protective function of the airbag system is sufficient for
only one accident. The airbag system must then be replaced if the
airbag has been deployed.
•The airbag system needs no maintenance during its working
life.
•The service life of the airbag system is 15 years from the date of
manufacture of the vehicle. Have the airbag system replaced by a
specialist garage after this period. If the modules of the system are
replaced before the expiry of the term (e.g. because of an accident),
the new change interval has to be entered in the service brochure.
•If you sell your car, please hand over the complete vehicle docu-
mentation to the new owener. Please note that the documents
relating to the possibility of deactivating the front passenger airbag
are also part of the vehicle documents!
•If the vehicle or individual parts of the airbag system are
scrapped, it is essential to observe the relevant safety precautions.
Škoda dealers are familiar with these regulations.
•When disposing of vehicle or parts of the airbag system, it is
important to comply with th e national legal requirements.
When are the airbags deployed?
The airbag system is designed in such a way that the driver airbag and the
front passenger airbag* are deployed in the event of a frontal collision of
major severity.
In the case of a violent side crash , the side airbag* on the side of the car
at which the collision occurs, is deployed together with the head airbag*.
In certain accident situations it is possible that both the front as well as the
side airbags and the relevant head airbag are deployed at the same time. The airbags
are not deployed in the case of minor frontal and side colli-
sions, in the case of rear-end collisions and vehicle rollover.
Deployment factors
It is not possible to state globally which deployment conditions apply to the
airbag system in every situation as the circumstances which exist in the
case of accidents vary greatly. An important role in this case, for example,
is played by factors such as the type of object against which the vehicle
impacts (hard, soft), the angle of impact, the vehicle speed etc.
A decisive factor for the deployment of the airbags is the deceleration
which occurs during a collision. The control unit analyses the nature of the
collision and activates the relevant restraint system. If the vehicle decel-
eration which occurs and is measured during the collision remains below
the prescribed reference values specified in the control unit, the airbags
are not deployed although the vehicle may well suffer severe damage to
the bodywork as a consequence of the accident.
The airbags are not deployed if:
•ignition off,
•a minor frontal collision,
•a minor side collision,
•a rear-end collision,
•rollover.
Note
•A grey white, non harmful gas is released when airbag is inflated. This
is perfectly normal and is not an indication of a fire in the vehicle.
•The dash panel must be replaced after the front passenger airbag has
been deployed.
•In the event of an accident in which the airbags are deployed:
− The interior lighting comes on (if the switch for the interior light is in
the door contact position),
WARNING (continued)
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