Seat Leon 5D 2011 Service Manual

39
Airbag 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 a specialised
workshop.
● The seat belts and airbags can only provide maximum protection if
the occupants are seated correctly ⇒ page 10, Proper sitting position for
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. 22 Illustration of
principle: 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. 22.
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. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

40Airbag 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 is triggered from the side of the backrest, the
use of non-approved seat covers would obstruct the side airbag, serious-
ly reducing the airbag's effectiveness ⇒ page 208, Accessories, parts re-
placement and modifications.
● 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 46,
Child safety.
● 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 functioning of the
side and head airbags neither the doors nor the door panels should be
modified in any way (e.g. fitting loudspeakers). If the front door is dam-
aged, the airbag system may not work correctly. All work carried out on
the front door must be made in a specialised workshop.


41
Airbag system
Curtain airbags
Description of curtain airbags
The airbag system is not a substitute for the seat belts.
Fig. 23 Location of head airbags on the left side of the
vehicle
The curtain airbags are located on both sides in the interior above the doors
⇒ fig. 23 and are identified with the text “AIRBAG”.
In conjunction with the seat belts, the curtain airbag system gives the occu-
pants additional protection for the head and upper body in the event of a
severe side collision ⇒ page 42, Safety notes on the operation of the cur-
tain 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 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 warning lamp  on the instrument panel ⇒ page 32
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 
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42Airbag system
● 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.
Fig. 24 Deployed curtain
airbags
During some side collisions the curtain airbag is triggered on the impact
side of the vehicle ⇒ fig. 24.
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 disconnected in those
vehicles fitted with a passenger compartment separation screen. See an
Authorised Service Centre to make this adjustment.
● 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 

43
Airbag system
WARNING (Continued)
not been expressly approved for use in your vehicle may not be attached
to the side windows ⇒ page 208, Accessories, parts replacement and
modifications.
● 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 functioning of the
side and head airbags neither the doors nor the door panels should be
modified in any way (e.g. fitting loudspeakers). If the front door is dam-
aged, the airbag system may not work correctly. All work carried out on
the front door must be made in a specialised workshop.

Safety FirstOperating InstructionsPractical TipsTechnical Specifications

44Airbag system
Deactivating airbags*
Front passenger airbag deactivation
If you fit a rear-facing child seat to the front passenger seat,
the front passenger airbag must be de-activated.
Fig. 25 In the glove com-
partment: switch for acti-
vating and deactivating
the front passenger air-
bag
Fig. 26 Warning lamp for
deactivated passenger
airbag in centre console
When the passenger airbag is deactivated, only the front airbag is
deactivated. All the other airbags in the vehicle remain activated.
Deactivating the front passenger airbag
– Switch the ignition off.
– Turn the ignition switch in the key operated switch in the glove
compartment to the position OFF ⇒ fig. 25.
– Check that the warning lamp “OFF” on the instrument panel
⇒ fig. 26 remains lit when the ignition is switched on ⇒ 
.
Activating the front passenger airbag
– Switch the ignition off.
– Turn the ignition key in the key-operated switch in the glove
compartment to the position ON ⇒ fig. 25.
– Check that the warning lamp on the instrument panel ⇒ fig. 26
does not light up when the ignition is switched on ⇒ 
.

45
Airbag system
WARNING
● The driver is responsible for the proper position of the key-operated
switch.
● You should deactivate the front passenger airbag only if you have to
use a rear-facing child seat in exceptional cases. ⇒ page 46, Child safe-
ty.
● For those vehicles that do not include a key lock switch to turn the
airbag off, an Authorised Service Centre must be consulted.
● Never install a child seat facing backwards on the front passenger
seat unless the front passenger airbag has been disabled. Otherwise,
there is a risk of death. If under exceptional circumstances it is necessary
to transport a child in a rear-facing child seat on the front passenger
seat, you must always disable the front passenger airbag.
● As soon as the child seat is no longer needed on the front passenger
seat, enable the front passenger airbag again.
● Only deactivate the passenger airbag when the ignition is off, other-
wise a fault may occur in the airbag system, which could cause the airbag
to not deploy properly or not deploy at all.
● When the passenger airbag is deactivated, if the warning lamp AIR-
BAG OFF is not continuously lit up, there may be a fault in the airbag sys-
tem:
–Have the airbag system inspected immediately by a specialised
workshop.
– Do not use a child seat on the front passenger seat! The front pas-
senger airbag could be triggered despite the fact that there is a fault
in the system and, as a result, a child could sustain serious or fatal
injuries.
– It is unpredictable whether the front passenger airbag will deploy
in the event of an accident. Warn all your passengers of this.
● When using the ignition key to activate/deactivate the front passen-
ger airbag, only the front passenger airbag will be activated/deactivated.
The side airbag and head airbag on the passenger side will remain ac-
tive.

Safety FirstOperating InstructionsPractical TipsTechnical Specifications

46Child safety
Child safety
Brief introduction Introduction
Statistics show that children are generally safer on the rear
seat than on the front passenger seat.For safety reasons we recommend that children under 12 years of age travel
on the rear seats. Depending on their age, height and weight, children trav-
elling on the rear seat must use a child seat or a seat belt. For safety rea-
sons, the child seat should be installed in the centre of the rear seat or be-
hind the front passenger seat.
The physical laws involved and the forces acting in a collision apply also to
children. ⇒ page 21, Why wear seat belts?.
But unlike adults, children do not have muscle and bone structures fully de-
veloped. This means that children are subject to a greater risk of injury.
To reduce this risk, children must always use special child restraint systems
when travelling in the vehicle.
We recommend the use of child safety products from the SEAT Genuine Ac-
cessories Programme, which includes systems for all ages made by
“Peke” 1)
.
These systems have been especially designed and approved, complying
with the ECE-R44. regulation. Follow the manufacturer's instructions and observe any statutory require-
ments when installing and using child seats. Always read and note
⇒ page 46.
We recommend you to include the manufacturer's Child Seat instruction
manual together with the on-board documentation.

Safety notes on using child seats
Proper use of child seats substantially reduces the risk of in-
jury in an accident! As the driver, you are responsible for any children you transport in
your vehicle.
– Protect your children by properly using the appropriate child
seats ⇒ page 48.
– Always ensure that the seat belt is properly positioned accord-
ing to the instructions provided by the manufacturer of the child
seat.
– When travelling, do not allow children to distract you from traf-
fic.
– Take breaks regularly during long trips. Take a break at least ev-
ery two hours. 
1)
Not for all countries

47
Child safety
WARNING
● Never install a child seat facing backwards on the front passenger
seat unless the front passenger airbag has been disabled. This could
lead to a risk of potentially fatal injuries to the child! However, if it is nec-
essary, in exceptional cases, to transport a child in the front passenger
seat, the front passenger airbag must always be disabled ⇒ page 44, De-
activating airbags*. If the passenger seat has a height adjustment op-
tion, move it to the highest position.
● For those vehicles that do not include a key lock switch to disconnect
the airbag, the vehicle must be taken to a Technical Service.
● All passengers, especially children, must assume the proper sitting
position and be properly belted in while travelling.
● Never hold children or babies on your lap, this can result in potential-
ly fatal injuries to the child!
● Never allow a child to be transported in a vehicle without being prop-
erly secured, or to stand up or kneel on a seat while travelling. In an acci-
dent, the child could be flung through the vehicle, causing possibly fatal
injuries to themselves and to the other passengers.
● If children assume an improper sitting position when the vehicle is
moving, they expose themselves to greater risk of injury in the event of a
sudden braking manoeuvre or in an accident. This is particularly impor-
tant if the child is travelling on the front passenger seat and the airbag
system is triggered in an accident; as this could cause serious injury or
even death.
● A suitable child seat can protect your child!
● Never leave an unsupervised child alone on a child seat or in the vehi-
cle.
● Depending on weather conditions, it may become extremely hot or
cold inside the vehicle. This can be fatal.WARNING (Continued)
● Children who are less than 1.5 metres tall must not wear a normal
seat belt without a child seat, as this could cause injuries to the abdomi-
nal and neck areas during a sudden braking manoeuvre or in an accident.
● Do not allow the seat belt to become twisted or jammed, or to rub on
any sharp edges.
● Incorrectly worn seat belts can cause injuries even in a minor colli-
sion or in sudden braking manoeuvres.
● The seat belt provides maximum protection only when the seat belt is
properly positioned ⇒ page 25, Seat belts.
● Only one child may occupy a child seat ⇒ page 48, Child seats.

Safety FirstOperating InstructionsPractical TipsTechnical Specifications

48Child safety
Child seats
Categorisation of child seats into groups
Use only child seats that are officially approved and suitable
for the child. Child seats are subject to the regulation ECE-R 44. ECE-R stands for: Eco-
nomic Commission for Europe Regulation
The child seats are grouped into 5 categories: Group 0: up to 10 kg
Group 0+: up to 13 kg
Group 1: from 9 to 18 kg
Group 2: from 15 to 25 kg
Group 3: from 22 to 36 kg
Child seats that have been tested and approved under the ECE R44 stand-
ard bear the test mark on the seat (the letter E in a circle with the test num-
ber below it). Group 0 and 0+ child seats
A suitable child seat and a correctly adjusted seat belt can
help you to protect your child.
Fig. 27 A group 0 rear-
facing child seat fitted on
the rear seat.
Group 0: For babies from about 9 months old and 10 kg in weight, the most
suitable seats are those appearing in the illustration ⇒ fig. 27.
Group 0+: For babies from about 18 months old and 13 kg in weight the
most suitable seats are those appearing in the illustration.
Follow the manufacturer's instructions and observe any statutory require-
ments when installing and using child seats.
We recommend you to include the manufacturer's Child Seat instruction
manual together with the on-board documentation.
WARNING
Read and always observe information and warnings concerning the use
of child seats ⇒ page 46.
