seats Seat Leon 5D 2012 User Guide

25
Seat belts
Seat belts
Seat belt adjustment
The seat belts for the front and rear occupants are locked in-
to position by a latch.
Fig. 11 Belt buckle and
latch plate of seat belt
The seat belt cannot offer its full protection if the seat belt is not
positioned correctly.
– Adjust the seat and head restraint correctly.
– To fasten the belt, take hold of the latch plate and pull it slowly
across your chest and lap.
– Insert the latch plate into the buckle for the appropriate seat
and push it down until it is securely locked with an audible click
⇒ Fig. 11. –
Pull the belt to ensure that the latch plate is securely engaged
in the buckle.
The seat belts are equipped with an automatic retractor on the shoulder
strap. Full freedom of movement is permitted when the shoulder belt is
pulled slowly. However, during sudden braking, during travel in steep areas
or bends and during acceleration, the automatic retractor on the shoulder
belt is locked.
The automatic belt retractors on the front seats are fitted with seat belt ten-
sioners ⇒ page 28.
WARNING
● An incorrectly worn seat belt can cause severe injuries in the event of
an accident.
● The seat belts offer best protection only when the backrests are in an
upright position and the seat belts have been fastened properly.
● Never put the latch plate in the buckle of another seat. If you do this,
the seat belt will not protect you properly and the risk of injury is in-
creased.
● If a vehicle occupant is incorrectly belted in, the seat belt cannot pro-
tect him or her properly. An incorrectly positioned seat belt can cause ex-
tremely severe injuries.
● Always engage the retractor lock when you are securing a child seat
in group 0, 0+ or 1 ⇒ page 47.

Safety FirstOperating instructionsPractical TipsTechnical specifications

28Seat belts
–Guide the belt back by hand so that it rolls up easily and the
trim is not damaged.
WARNING
Never unbuckle a seat belt while the vehicle is in motion. If you do, you
increase the risk of sustaining severe or fatal injuries.

Incorrectly fastened seat belts
Incorrectly worn seat belts can cause severe or even mortal
injuries. Seat belts can provide optimal protection only if the belt web is
properly worn. The seat belts must be fastened exactly in the order
described in this chapter. An incorrect sitting position impairs sub-
stantially the protection a seat belt offers and can lead to severe or
fatal injuries. The risk of severe or fatal injuries is especially in-
creased when a deploying airbag strikes a vehicle occupant who
has assumed an incorrect sitting position. As the driver, you are re-
sponsible for yourself and all passengers, especially children.
Therefore:
– Never allow anyone to wear the seat belt incorrectly while the
vehicle is moving ⇒ 
.
WARNING
● An incorrectly worn seat belt increases the risk of severe injuries.
● Before every trip, instruct your passengers to adjust their seat belts
properly and to wear them for the whole journey.
● Read and always observe information and warnings concerning the
use of seat belts ⇒ page 23.

Seat belt tensioners
Function of the seat belt tensioner
During a frontal collision, the seat belts on the front seats
are retracted automatically. The seat belts for the occupants in the front seats are equipped with belt
tensioners. Sensors will only trigger the belt tensioners during severe head-
on, lateral and rear collisions, and only if the seat belt is actually being
worn. This retracts and tightens the seat belts, reducing the forward motion
of the occupants.
The seat belt tensioner can be triggered only once.
The seat belt tensioners will not be triggered in the event of a light frontal,
side or rear collision, if the vehicle overturns or in situations where no large
forces act on the front, side or rear of the vehicle. 

29
Seat belts
Note
● If the seat belt tensioners are triggered, a fine dust is produced. This is
normal and it is not an indication of fire in the vehicle.
● The relevant safety requirements must be observed when the vehicle or
components of the system are scrapped. Specialised workshops are famili-
ar with these regulations, which are also available to you. 
Service and disposal of belt tensioners
The belt tensioners are components of the seat belts that are installed in
the seats of your vehicle. If you work on the belt tensioners or remove and
install parts of the system when performing other repair work, the seat belt
may be damaged. The consequence may be that, in the event of an acci-
dent, the belt tensioners function incorrectly or not at all.
So that the effectiveness of the seat belt tensioner is not reduced and that
removed parts do not cause any injuries or environmental pollution, regula-
tions, which are known to the specialised workshops, must be observed.
WARNING
● Improper use or repairs not carried out by qualified mechanics in-
crease the risk of severe or fatal injuries. The belt tensioners may fail to
trigger or may trigger in the wrong circumstances.
● Never attempt to repair, adjust, remove or install parts of the belt ten-
sioners or seat belts.
● The seat belt tensioner, seat belt and automatic retractor cannot be
repaired.
WARNING (Continued)
● Any work on the belt tensioners and seat belts, including the removal
and refitting of system parts in conjunction with other repair work, must
be performed by a specialised workshop only.
● The belt tensioners will only provide protection for one accident and
must be changed if they have been activated.

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31
Airbag system
WARNING (Continued)
● To reduce the risk of injury from an inflating airbag, always wear the
seat belt properly ⇒ page 19.
● Always adjust the front seats properly.

The danger of fitting a child seat on the front passenger
seat
Rear-facing child seats must never be used on the front pas-
senger seat when the front passenger airbag is enabled. The front passenger front airbag is a serious risk for a child if it is activated.
The front passenger seat is life threatening to a child if he/she is transpor-
ted in a rear-facing child seat. Children up to 12 years old should always
travel on the rear seat.
If a rear-facing child seat is secured to the front passenger seat, an inflating
airbag can strike it with such force that it can cause critical or fatal injuries.
Therefore we strongly recommend you to transport children on the rear
seats. That is the safest place for children in the vehicle. Alternatively, the
front passenger airbag can be disabled with a key-operated switch
⇒ page 44. When transporting children, use a child seat suitable for the
age and size of each child ⇒ page 47.
For those vehicles that do not include a key lock switch to turn the airbag
off, a Technical Service must be consulted.
WARNING
● If a child seat is secured to the front passenger seat, the risk to the
child of sustaining critical or fatal injuries in the event of an accident in-
creases.
● Never secure a rear-facing child seat to the front passenger seat if the
front passenger airbag is enabled. The child can suffer critical or fatal in-
juries if the front passenger airbag is triggered.
● An inflating front passenger airbag can strike the rear-facing child
seat and project it with great force against the door, the roof or the back-
rest.
● For those vehicles that do not include a key lock switch to turn the
airbag off, a Technical Service must be consulted.
● If, under special circumstances, it is necessary to transport a child in
a rear-facing child seat on the front passenger seat, it is absolutely es-
sential that you observe the following safety measures:
–Deactivate the front passenger airbag ⇒ page 44.
– Child seats must be approved by the child seat manufacturer for
use on a front passenger seat with front or side airbag.
– Follow the installation instructions given by the child seat manu-
facturer and observe the safety instructions ⇒ page 47, Child safe-
ty.
– Before properly installing the child seat, push the front passenger
seat completely backwards so that the greatest possible distance to
the front passenger airbag is ensured.
– Ensure that no objects prevent the front passenger seat from being
pushed completely back.
– The backrest of the front passenger seat must be in an upright po-
sition.

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37
Airbag system
The airbags deploy extremely rapidly, within thousandths of a second, to
provide additional protection in the event of an accident. A fine dust may
develop when the airbag deploys. This is normal and it is not an indication
of fire in the vehicle. 
Airbag covers when the frontal airbags are triggered
Fig. 20 Airbag covers reacting when the front airbags are triggered The airbag covers fold out of the steering wheel or dash panel when the
driver and front passenger airbags are triggered ⇒ Fig. 20. The airbag cov-
ers remain connected to the steering wheel or the dash panel. Safety notes on the front airbag system
If you use airbags correctly, they can considerably reduce
the risk of injury in many kinds of accident.
WARNING
● It is important for the driver and front passenger to keep a distance of
at least 25 cm from the steering wheel and dash panel. If the minimum
distance is not observed then the airbags do not correctly protect the ve-
hicle occupants; risk of fatal injuries! In addition, the front seats and
head restraints must always be positioned correctly for the height of the
occupant.
● If you are not wearing a seat belt, if you lean forward or to the side
while travelling or assume an incorrect sitting position, there is a sub-
stantially increased risk of injury. This increased risk of injury will be fur-
ther increased if you are struck by an inflating airbag.
● Never let a child travel on the front seat without an appropriate re-
straint system. If the airbag is triggered in an accident, children can sus-
tain serious or fatal injuries from the airbag as it inflates ⇒ page 47.
● The deployment space between the front passengers and the airbags
must not in any case be occupied by other passenger, pets and objects.
● The airbags provide protection for just one accident; replace them
once they have deployed.
● It is also important not to attach any objects such as cup holders or
telephone mountings to the surfaces covering the airbag units.
● Do not attempt to modify components of the airbag system in any
way.

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39
Airbag system
Side airbags* Description of side airbags
The airbag system is not a substitute for the seat belts.
Fig. 23 Side airbag in
driver seat
The side airbags are located in the backrest cushions of the driver seat
⇒  Fig. 23 and the front passenger seat as well as in the rear seats*. The lo-
cations are identified by the text “AIRBAG” in the upper region of the backr-
ests.
Together with the seat belts, the side airbag system gives the front seat oc-
cupants additional protection for the upper body in the event of a severe
side collision ⇒ page 41, Safety notes on the operation of the side airbag
system.
In a side collision, the side airbags reduce the risk of injury to passengers
on the front seats to the areas of the body facing the impact. In addition to
their normal function of protecting the occupants in a collision, the seat
belts also hold the passengers in the front seats and the outer rear seats in
a position where the side airbags can provide maximum protection. The airbag system is not a substitute for seat belts, but it is an integral part
of the vehicle's overall passive safety system. Please bear in mind that the
airbag system can only work effectively when the occupants are wearing
their seat belts. Therefore, it is most important to wear the seat belts at all
times, not only because this is required by law in most countries, but also
for your safety
⇒ page 19, Brief introduction.
The side airbag system will not be triggered if:
● the ignition is switched off
● there is a minor side collision
● there is a frontal collision
● there is a rear-end collision
● the vehicle turns over
The main parts of the airbag system are:
● an electronic control and monitoring system (control unit)
● the side airbags in the sides of the backrests of the front and rear seats
● a control lamp  in the dash panel
The airbag system operation is monitored electronically. The airbag control
lamp will light up for approx. 4 seconds every time the ignition is switched
on (self-diagnosis).
WARNING
● In a side-on collision the side airbags will not work if the sensors do
not correctly measure the pressure increase on the interior of the doors,
due to air escaping through the areas with holes or openings in the door
panel.
● Never drive the vehicle if the interior panels have been removed.
● Never drive if the interior door panels have been removed or if the
panels have not been correctly fitted. 
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40Airbag system
WARNING (Continued)
● Never drive the vehicle if the loudspeakers in the door panels have
been removed, unless the holes left by the loudspeakers have been cor-
rectly closed.
● Always check that the openings are closed or covered if loudspeakers
or other equipment are fitted in the interior door panels.
● Any work carried out to the doors should be made in an authorised
specialised workshop.
● The seat belts and airbags can only provide maximum protection if
the occupants are seated correctly ⇒ page 10, Sitting position for vehicle
occupants.
● If a fault has occurred in the airbag system, have the system checked
immediately by a specialised workshop. Otherwise, during a side colli-
sion, the system may fail to trigger, or not trigger correctly.
 Operation of side airbags
Inflated airbags can reduce the risk of head or chest injury
in many side impact collisions.
Fig. 24 Illustration of
completely inflated side
airbags on left side of ve-
hicle
In some side collisions, the side airbag is triggered on the impact side of
the vehicle ⇒ Fig. 24.
In certain types of accident the front, curtain and side airbags may be trig-
gered together.
When the system is triggered, the airbag is filled with propellant gas.
The airbags deploy extremely rapidly, within thousandths of a second, to
provide additional protection in the event of an accident. A fine dust may
develop when the airbag deploys. This is normal and it is not an indication
of fire in the vehicle.
The fully deployed airbags cushion the movement of the occupants of the
front seats and the outer rear seats and help to reduce the risk of injury to
the upper body. 

41
Airbag system
The special design of the airbag allows the controlled escape of the propel-
lant gas when an occupant puts pressure on the bag. Thus, the head and
chest are surrounded and protected by the airbag. 
Safety notes on the operation of the side airbag system
If airbags are used correctly, they can considerably reduce
the risk of injury in side impact collisions.
WARNING
● If you do not wear a seat belt, if you lean forward, or are not seated
correctly while the vehicle is in motion, you are at a greater risk of injury
if the side airbag system is triggered in an accident.
● In order for the side airbags to provide their maximum protection, the
prescribed sitting position must always be maintained with seat belts
fastened while travelling.
● Occupants of the outer seats must never carry any objects or pets in
the deployment space between them and the airbags, or allow children
or other passengers to travel in this position. It is also important not to
attach any accessories (such as cup holders) to the doors. This would im-
pair the protection offered by the side airbags.
● The built-in coat hooks should be used only for lightweight clothing.
Do not leave any heavy or sharp-edged objects in the pockets.
● Great forces, such as hard blows or kicks, must not be exerted upon
the backrest bolster because the system may be damaged. In this case,
the side airbags would not be triggered.
WARNING (Continued)
● Under no circumstances should protective covers be fitted over seats
with side airbags unless the covers have been approved for use in your
vehicle. Because the airbag deploys from the side of the backrest, the
use of conventional seat covers would obstruct the side airbag, seriously
reducing the airbag's effectiveness.
● Any damage to the original seat upholstery or around the seams of
the side airbag units must be repaired immediately by a specialised
workshop.
● The airbags provide protection for just one accident; replace them
once they have deployed.
● When children assume an incorrect sitting position, they expose
themselves to an increased risk of injury in the event of an accident. This
is particularly the case if the child is travelling on the front passenger
seat and the airbag system is triggered in an accident; this could have
critical consequences including serious injury or death ⇒ page 47.
● Any work on the side airbag system or removal and installation of the
airbag components for other repairs (such as removal of the front seat)
should only be performed by a specialised workshop. Otherwise, faults
may occur during the airbag system operation.
● Do not attempt to modify components of the airbag system in any
way.
● The side and head airbags are managed through sensors located in
the interior of the front doors. To ensure the correct operation of the side
and head airbags neither the doors nor the door panels should be modi-
fied in any way (e.g. fitting loudspeakers). If the front door is damaged,
the airbag system may not work correctly. All work carried out on the
front door must be done in a specialised workshop.

Safety FirstOperating instructionsPractical TipsTechnical specifications

42Airbag system
Curtain airbags*
Description of curtain airbags
The airbag system is not a substitute for the seat belts.
Fig. 25 Location of curtain airbagsThe curtain airbags are located on both sides in the interior above the doors
⇒ Fig. 25 and are identified with the text “AIRBAG”.
In conjunction with the seat belts, the curtain airbag system gives the vehi-
cle occupants additional protection for the head and upper body in the
event of a severe side collision ⇒ page 43, Safety notes on the operation
of the curtain airbag system.
The airbag system is not a substitute for seat belts, but it is an integral part
of the vehicle's overall passive safety system. Please bear in mind that the
airbag system can only work effectively when the vehicle occupants are
wearing their seat belts correctly and have adjusted the head restraints
properly. Therefore, it is most important to wear the seat belts at all times, not only because this is required by law in most countries, but also for your
safety
⇒ page 19, Brief introduction.
The main parts of the curtain airbag system are:
● an electronic control and monitoring system (control unit)
● the curtain airbags (airbags with gas generator) for the driver, front pas-
senger and passengers on the rear seats
● a control lamp  in the dash panel
The airbag system operation is monitored electronically.
The curtain airbag system will not be triggered if:
● the ignition is switched off
● there is a frontal collision
● there is a rear-end collision
● the vehicle turns over
● there is a minor side collision
WARNING
If a fault has occurred in the airbag system, have the system checked im-
mediately by a specialised workshop. Otherwise there is a danger that
during a collision, the system may fail to trigger, or not trigger correctly.

Operation of curtain airbags
Fully inflated airbags reduce the risk of head or chest injury
in a side collision. During some side collisions the curtain airbag is triggered on the impact
side of the vehicle ⇒ Fig. 25. 

43
Airbag system
In certain types of accident the front, side and curtain airbags may be trig-
gered together.
When the system is triggered, the airbag is filled with propellant gas. In the
process, the curtain airbag covers the side windows and door pillars.
The airbags deploy extremely rapidly, within thousandths of a second, to
provide additional protection in the event of an accident. A fine dust may
develop when the airbag deploys. This is normal and it is not an indication
of fire in the vehicle.
The fully deployed airbags cushion the movement of the front occupants
and help to reduce the risk of injury to the upper body.
The special design of the airbag allows the controlled escape of the propel-
lant gas when an occupant puts pressure on the bag. Thus, the head and
chest are surrounded and protected by the airbag. 
Safety notes on the operation of the curtain airbag system
If you use airbags correctly, they can considerably reduce
the risk of injury in many kinds of accident.
WARNING
● In order for the side airbags to provide their maximum protection, the
prescribed sitting position must always be maintained with seat belts
fastened while travelling.
● For safety reasons, the curtain airbag must be disabled in those vehi-
cles fitted with a screen dividing the interior of the vehicle. See a Techni-
cal Service to make this adjustment.
WARNING (Continued)
● There must be no other persons, animals or objects between the oc-
cupants of the outer seats and the deployment space of the curtain air-
bags so that the curtain airbag can deploy without restriction and pro-
vide the greatest possible protection. Therefore, sun blinds which have
not been expressly approved for use in your vehicle may not be attached
to the side windows.
● The built-in coat hooks should be used only for lightweight clothing.
Do not leave any heavy or sharp-edged objects in the pockets. Please, do
not hang the clothes on coat hangers.
● The airbags provide protection for just one accident; replace them
once they have deployed.
● Any work on the curtain airbag system or removal and installation of
the airbag components for other repairs (such as removal of the roof lin-
ing) should only be performed by a specialised workshop. Otherwise,
faults may occur during the airbag system operation.
● Do not attempt to modify components of the airbag system in any
way.
● The side and head airbags are managed through sensors located in
the interior of the front doors. To ensure the correct operation of the side
and head airbags neither the doors nor the door panels should be modi-
fied in any way (e.g. fitting loudspeakers). If the front door is damaged,
the airbag system may not work correctly. All work carried out on the
front door must be done in a specialised workshop.

Safety FirstOperating instructionsPractical TipsTechnical specifications