2014 Seat Leon 5D ECU

Seat belts
The seat belts are equipped with an automat-
ic retractor on the shoulder strap. Full free-
dom of movement is permitted when the
shoulder belt is pulled slowly. However, dur-
ing 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 tensioners
››› page 47 .
R el
easing the seat belt
● Press the red button on the belt buckle
››› Fig. 64 B
. The latch plate is released and
springs out ››› .
● Guide the belt back by hand so that it rolls
up easily and the trim is not damaged.
Adjusting the seat belt
Seat belts offer their maximum protection on-
ly when they are properly positioned
››› Fig. 65 . WARNING
● The seat belts offer best protection only
when the backrests are in an upright position
and the seat belts have been fastened prop-
erly.
● 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 increased.
●
Never unbuckle a seat belt while the vehi-
cle is in motion. If you do, you increase the
risk of sustaining severe or fatal injuries.
● An incorrectly worn seat belt can cause se-
vere injuries in the event of an accident.
● For pregnant women, the lap part of the
seat belt must lie as low as possible over the
pelvis, never across the stomach, and always
lie flat so that no pressure is exerted on the
abdomen ››› Fig. 65.
● Alw

ays engage the retractor lock when you
are securing a child seat in group 0, 0+ or 1
››› page 56.
● Re

ad and observe the warnings ››› page 44. Seat belt tensioners
How the seat belt tensioner works 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. Sen-
sors will trigger the belt tensioners only dur-
ing severe head-on, lateral and rear-end colli-
sions and only if the seat belt is 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 col-
lision, if the vehicle overturns or in situations
where no large forces act on the front, side or
rear of the vehicle.
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 work-
shops are familiar 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 tension-
ers 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 accident, the belt
tensioners function incorrectly or may not
function at all.
So that the effectiveness of the seat belt ten-
sioner is not reduced and that removed parts
»
47
Technical specifications
Advice
Operation
Safety
The essentials

Transporting children safety
Follow the manufacturer's instructions and
observe any statutory requirements when in-
stalling and using child seats. Always read
and note ››› page 57 .
W e r
ecommend you always carry the manu-
facturer's Child Seat Instruction Manual to-
gether with the on-board documentation.
Important information regarding the
front passenger's airbag Fig. 76
Passenger's side sun visor: airbag
sticker. Fig. 77
On the rear frame of the passenger
side door: airbag sticker. A sticker with important information about
the passenger airbag is located on the pas-
senger's sun visor and/or on the passenger
side door frame. Read and always observe
the safety information included in the follow-
ing chapters:
● Safety distance with respect to the passen-
ger airbag ››› page 48 .
● Ob

jects between the passenger and the
passenger side airbag ››› in Front airbags
on page 51 .
The p a

ssenger side front airbag, when ena-
bled, is a serious risk for a child that is facing
backward since the airbag can strike the seat
with such force that it can cause serious or
fatal injuries. Children up to 12 years old
should always travel on the rear seat.
Therefore we strongly recommend you to
transport children on the rear seats. This is the safest location in the vehicle. Alternative-
ly, the front passenger airbag can be disa-
bled with a key-operated switch
››› page 55.
When transporting children, use a child seat
suitable for the age and size of each child
››› page 58. WARNING
● If a child seat is secured to the front pas-
senger seat, the risk to the child of sustain-
ing critical or fatal injuries in the event of an
accident increases.
● 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 backrest.
● Never install a child seat facing backwards
on the front passenger seat unless the front
passenger front airbag has been disabled.
Risk of potentially fatal injuries to the child!
However, if it is necessary, in exceptional ca-
ses, to transport a child in the front passen-
ger seat, the front passenger front airbag
must always be disabled ››› page 54. If the
passenger seat has a height adjustment op-
tion, move it to the highest, most upright po-
sition. If you have a fixed seat, do not install
any child restraint system in this location.
● For those vehicles that do not include a key
lock switch to deactivate the airbag, the vehi-
cle must be taken to a technical service.
● All vehicle occupants, especially children,
must assume the proper sitting position and
be properly belted in while travelling. » 57
Technical specifications
Advice
Operation
Safety
The essentials

Safety
●
Never hold children or babies on your lap,
this can result in potentially fatal injuries to
the child!
● Never allow a child to be transported in a
vehicle without being properly secured, or to
stand up or kneel on a seat while travelling.
In an accident, the child could be flung
through the vehicle, causing possibly fatal in-
juries to themselves and to the other vehicle
occupants.
● If children assume an improper sitting posi-
tion 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 important if the
child is travelling on the front passenger seat
and the airbag system is triggered in an acci-
dent; as this could cause serious injury or
even death.
● A suitable child seat can protect your child!
● Never leave a child alone in the child seat
or inside the vehicle because depending on
the season, very high temperatures may be
reached inside a parked vehicle, which could
be fatal.
● 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
abdominal and neck areas during a sudden
braking manoeuvre or in an accident.
● Do not allow the seat belt to become twis-
ted and the seat belt should be properly in
place ››› page 43.
● On ly
one child may occupy a child seat
››› page 58, Child seats. ●
When a child seat is mounted in the rear
seats, the door child-proof lock should be ac-
tivated ››› page 87. Child seats
Categorisation of child seats into
groups Use only child seats that are officially ap-
proved and suitable for the child.
Child seats are subject to the regulation ECE-
R 44. ECE-R stands for: Economic Commis-
sion for Europe Regulations.
The child seats are grouped into 5 catego-
ries:
Group 0 : Up to 10 kg (up to around 9
months)
Gr oup 0+
: Up to 13 kg (up to around 18
months)
Group 1
: from 9 to 18 kg (up to approx. 4
years old)
Group 2
: from 15 to 25 kg (up to approx. 7
years old)
Group 3: From 22 to 36 kg (over around 7
ye

ars old) Child seats that have been tested and ap-
proved under the ECE R44 standard bear the
test mark on the seat (the letter E in a circle
with the test number below it).
Follow the manufacturer's instructions and
observe any statutory requirements when in-
stalling and using child seats.
We recommend you to always include the
manufacturer's Child Seat Instruction Manual
together with the on-board documentation.
SEAT recommends you use child seats from
the Original Accessories Catalogue
. The
se
child seats have been designed and tested
for use in SEAT vehicles. You can find the
right child seat for your model and age group
at SEAT dealers. WARNING
Read and always observe information and
warnings concerning the use of child seats
››› page 57. Securing the child seat using the seat
belt
The seat belt may be used to secure
univer-
sal type child seats to the vehicle seats
m ark

ed with a U in the table below.
58

Transporting children safety
● If the front passenger seat lacks a height
adjustment, child seats cannot be mounted
is this location.Weight group
Seating position
Front
passen-
ger seatRear side seatRear cen-tral seat
Group 0
to 10 kgU*UU
Group 0+ to 13 kgU*UU
Group I
9 to 18 kgU*UU
Group II
15 to 25 kgU*UU
Group III
22 to 36 kgU*UU Suitable for universal restraint systems
for use in this weight group.
Only compatible for models with adjust-
able seat height. Place seat in the back-
most highest position possible.
WARNING
● When travelling, children must be secured
in the vehicle with a restraint system suitable
for age, weight and size.
● Read and always observe information and
warnings concerning the use of child seats
››› page 57. U:
*:
“ISOFIX” and Top Tether child seat mounting system* Child seats can be secured quickly, easily
and safely on the rear outer seats with the
“ISOFIX” and Top Tether* system.
Two “ISOFIX” retaining rings are fitted on
each rear seat. In some vehicles, the rings
are secured to the seat frame and, in others,
they are secured to the rear floor. Access to
the “ISOFIX” rings is between the rear seat
backrest and the seat cushioning. The Top
Tether* rings are located at the rear of the
backrests of the rear seats (behind the seat
backrest or in the boot).
To understand the compatibility of the "ISO-
FIX" systems in the vehicle, consult the table
below.
● The allowed body weight for the child seat
or information regarding size A
to
F is indica-
ted on the label on the child seat with certifi-
cation “
universal” or “semi-universal”. »
59
Technical specifications
Advice
Operation
Safety
The essentials

SafetyWeight groupSize classElectrical equipmentMounting directionVehicle Isofix positions
Rear side seats
Baby carrierFISO/L1Backward-facingX
GISO/L2Backward-facingX
Group 0 to 10 kgEISO/R1Backward-facingIU
Group 0+ to 13 kg
EISO/R1Backward-facingIU
DISO/R2Backward-facingIU
CISO/R3Backward-facingIU
Group I 9 to 18 kg
DISO/R2Backward-facingIU
CISO/R3Backward-facingIU
BISO/F2Forward-facingIU
B1ISO/F2XForward-facingIU
AISO/F3Forward-facingIU
Group II 15 to 25 kg------Forward-facing---
Group III 22 to 36 kg------Forward-facing---
Suitable for ISOFIX universal child re-
straint systems approved for use in this
weight group.
ISOFIX position not suitable for ISOFIX
child restraint systems for this weight
group or size class.
IU:
X: WARNING
● The retaining rings are designed only for
use with “ISOFIX” and Top Tether* system
child seats.
● Never secure other child seats that do not
have the “ISOFIX” or Top Tether* system, or
retaining belts or objects to the fastening
rings - this can result in potentially fatal inju-
ries to the child. ●
Ensure that the child seat is secured cor-
rectly using the “ISOFIX” and Top Tether* se-
curing rings. 60

Transporting children safety
“ISOFIX” child seat mounting system Fig. 78
ISOFIX securing rings. When removing or fitting the child seat,
please be sure to follow the manufacturer's
instructions.
– Remove the protective caps of the “ISOFIX”
rings by placing a finger in the hole and
pulling up ››› Fig. 78 .
– Pr e
ss the child seat onto the “ISOFIX” re-
taining rings until the child seat can be
heard to engage securely. If the child seat
is equipped with Top Tether* anchor points,
secure it to the correspondent ring
››› Fig. 79
. Observe the manufacturer's in-
structions.
– Do a test by pulling both sides of the child
seat to ensure that it is properly anchored.
Child seats with the “ISOFIX” and Top Tether*
attachment system are available from Techni-
cal Services. Top Tether* retainer straps
Fig. 79
Position of the Top Tether rings on the
back of the rear seat. Child seats with the Top Tether system come
with a strap for securing the seat to the vehi-
cle anchor point, located at the back of the
rear seat backrest and provide greater re-
straint.
The objective of this strap is to reduce for-
ward movements of the child seat in a crash,
to reduce the risk of injuries to the head from
hitting the inside of the vehicle.
Using the Top Tether in rear-facing mounted
seats
Currently, there are very few rear-facing child
safety seats that have Top Tether. Please
carefully read and follow the seat manufac-
turer instructions to learn the proper way to
install the Top Tether strap. Fitting the Top Tether child restraint to
the anchoring point
Fig. 80
Retainer strap: correct adjustment
and fitting. Securing the Top Tether child restraint to the
anchor point situated on the rear of the
backrest
– Pull out the fastening belt of the child re-
straint seat according to the manufacturer's
instructions.
– Guide the Top Tether fastening belt under
the rear seat head restraint ››› Fig. 80 (lift
the he a

d restraint where necessary).
– Slide the belt so that the Top Tether belt of
the child restraint seat is correctly secured
to the anchor on the back of the rear seat
››› Fig. 79.
– Firmly

tighten the Top Tether belt following
the child restraint seat manufacturer's in-
structions. »
61
Technical specifications
Advice
Operation
Safety
The essentials

Safety
Releasing the retaining strap
– Release the retainer strap in line with the
instructions given by the manufacturer.
– Push the lock and release it from the an-
choring support. WARNING
An undue installation of the safety seat will
increase the risk of injury in the event of a
crash.
● Never tie the retainer strap to a hook in the
luggage compartment.
● Never secure or tie luggage or other items
to the lower anchorages (ISOFIX) or the upper
ones (Top Tether). 62

Operation
Opening and closing Central locking system Description The vehicle can be locked and unlocked via
the central locking system. There are several
methods, depending on the vehicle equip-
ment:
●
key with remote control ››› page 84 ,
● lock on driver door (emergency opening
››› page 227 ) or
● int erior c
entral locking switch ››› page 85.
Unlocking one side of the vehicle only
When you lock the vehicle with the key, the
doors and the rear lid are locked. When you
open the door, you can either unlock only the
driver door

, or all the vehicle doors. To select
the required option, use Easy Connect*
››› page 85
.
Automatic locking (Auto Lock)*
The Auto Lock function locks the doors and
the rear lid when the vehicle exceeds a speed
of about 15 km/h (10 mph).
The vehicle is unlocked again when the igni-
tion key is removed. Alternatively, the vehicle
can also be unlocked via the central locking
switch or by pulling one of the inside door handles. The Auto Lock function can be
switched on and off on the sound system or
on the Easy Connect* system
››› page 85.
In the event of an accident in which the air-
bags inflate, the doors will be automatically
unlocked to facilitate access and assistance.
Anti-theft alarm system*
If the anti-theft alarm system senses interfer-
ence with the vehicle it triggers an audible
and visible alarm.
The anti-theft alarm system is automatically
switched on when locking the vehicle. It
switches off when the vehicle is unlocked
from a distance.
When the driver door is unlocked with the
key, you should switch on the ignition within
15 seconds. Otherwise the alarm will be trig-
gered. On some export versions, the alarm is
triggered immediately when you open a door.
To deactivate the alarm, press the button  on the remote control key, or switch on the
ignition. After a certain time, the alarm will
automatically switch off.
Switch off the vehicle interior monitoring and
tow-away protection if you wish to prevent
the alarm from being triggered accidentally
››› page 89 . T
urn s
ignals
The turn signals will flash twice when the ve-
hicle is unlocked and once when the vehicle
is locked.
If it does not flash, this indicates that one of
the doors, the rear lid or the bonnet is not
closed correctly.
Accidental lock-out
The central locking system prevents you from
being locked out of the vehicle in the follow-
ing situations:
● If the driver door is open, the vehicle can-
not be locked with the central locking switch
››› page 85.
Loc

k the vehicle with the remote control key,
when all the doors and the rear lid have been
closed. This prevents the accidental locking
of the vehicle. WARNING
Do not leave anyone (especially children) in
the vehicle if it is locked from the outside and
the anti-theft security system* is enabled, as
the doors and windows cannot then be
opened from the inside. Locked doors could
delay assistance in an emergency, potentially
putting lives at risk. 82