2015 Seat Leon 5D run flat

The essentials
Repairing a tyre with the anti-punc-
t ur
e k
it Fig. 68
Standard representation: contents of
the anti-p u
nct

ure kit. The anti-puncture kit is located under the
floor p
anel
in the lug

gage compartment.
Sealing the tyre
● Unscrew the tyre valve cap and insert. Use
the ›››

Fig. 68 1 tool to remove the insert.
Pl ac
e it
on a clean surface.
● Shake the tyre sealant bottle vigorously
›››
Fig. 68 10 .
● Screw the inflator tube ››
›
Fig. 68 3 into
the se al
ant
bottle. The bottle's seal will break
automatically. ●
Remov
e the lid from the filling tube
››› Fig. 68 3 and screw the open end of the
t ube int
o the ty
re valve.
● With the tyre sealant bottle upside down,
fill
the tyre with the contents of the sealant
bottle.
● Remove the bottle from the valve.
● Place the insert back into the tyre valve us-
ing the too
l ››› Fig. 68 1 .
Infl atin
g the ty
re
● Screw the compressor tyre inflator tube
›››
Fig. 68 5 into the tyre valve.
● Check that the air bleed screw is closed
› ›
›

Fig. 68 7 .
● Start the engine and leave it running.
● Insert the connector ››
›
Fig. 68 9 into the
v ehic
l
e's 12-volt socket ›››
 page 147.
● Turn the air compressor on with the ON/OFF
switc
h ››› Fig. 68 8 .
● Keep the air compressor running until it
r e
ac

hes 2.0 to 2.5 bar
(29-36 psi/200-250 kPa). a maximum of 8
minutes.
● Disconnect the air compressor.
● If it does not reach the pressure indicated,
uns
crew the tyre inflator tube from the valve.
● Move the vehicle 10m so that the sealant is
dis trib

uted throughout the tyre. ●
Scr ew the c

ompressor tyre inflator into the
valve.
● Repeat the inflation process.
● If the indicated pressure still cannot be
reac
hed, the tyre is too badly damaged. Stop
and request assistance from an authorised
technician.
● Disconnect the air compressor. Unscrew
the tyre infl
ator tube from the tyre valve.
● When the tyre pressure is between 2.5 and
2.0 bars, c
ontinue driving without exceeding
80 km/h (50 mph).
● Check the pressure again after 10 minutes
›››
 page 88.

››› in TMS (Tyre Mobility System)* on
page 86
››› page 86 57

The essentials
Jump leads must comply with standard DIN
72553 (see c ab
l
e manufacturer's instruc-
tions). The wire cross section must be at least
25 mm 2
for petrol engines and at least
35 mm 2
for diesel engines. Note
● The v ehic

les must not touch each other,
otherwise electricity could flow as soon as
the positive terminals are connected.
● The discharged battery must be properly
connected t
o the on-board network. How to jump start: description
Fig. 78
Diagram of connections for vehicles
w ithout


Start Stop system Fig. 79
Diagram of connections for vehicles
with St

art Stop system Jump lead terminal connections
1. Switch off the ignition of both vehicles
››
›

.
2. Connect one end of the re
d
jump lead to
the positive + terminal of the vehicle
w ith the fl
at
battery A
› ›
› Fig. 78 .
3. Connect the other end of the red
jump
lead to the positive terminal + in the ve-
hic l
e pr
oviding assistance B .
4. For vehicles without Start-Stop system:
connect
one end of

the black jump lead to
the negative terminal – of the vehicle
pr o
v

iding the current B
› ›
› Fig. 78 .
– For vehicles with Start-Stop system: con-
nect one end of
the black jump lead X to a
s uit
ab
le ground terminal, to a solid piece of
metal in the engine block, or to the engine
block itself ››› Fig. 79. 5. Connect the other end of the
black
jump
lead X to a solid metal component bolted
t o the en
gine b
lock or to the engine block
itself of the vehicle with the flat battery.
Do not connect it to a point near the bat-
tery A .
6. Position the leads in such a way that they cannot
c

ome into contact with any moving
parts in the engine compartment.
Starting
7. Start the engine of the vehicle with the boostin
g battery and let it run at idling
speed.
8. Start the engine of the vehicle with the flat batter
y and wait for 2 or 3 minutes until
the engine is running.
Removing the jump leads
9. Before you remove the jump leads, switch off the dipped be
am headlights if they are
switched on.
10.
Turn on the heater blower and heated rear
window in the vehicle with the flat battery.
This helps minimise voltage peaks which
are generated when the leads are discon-
nected.
11.When the engine is running, disconnect the lea
ds in reverse order to the details
given above. » 63

Operation
alarm is activated immediately on opening
the door).
● A door is opened.
● The bonnet is opened.
● The rear lid is opened.
● When the ignition is switched on with a
non- authori
sed k
ey.
● When the vehicle battery is disconnected.
● Movement inside the vehicle (in vehicles
with interior monit
oring ››› page 123).
● When the vehicle is towed (in vehicles with
anti-tow sy
stem ››› page 123).
● When the vehicle is raised (in vehicles with
anti-tow sy
stem ››› page 123).
● When the vehicle is transported on a ferry
or by r
ail (vehicles with an anti-tow system or
vehicle interior monitoring ››› page 123).
● When a trailer connected to the anti-theft
alarm sys
tem is disconnected.
How to turn OFF the alarm
Unlock the vehicle with the unlocking button
on the key or turn on the ignition with a valid
key. Note
● Aft er 28 d

ays, the indicator light will be
switched off to prevent the battery from ex-
hausting if the vehicle has been left parked for a long period of time. The alarm system
rem
ain

s activated.
● If, after the audible warning goes off, an-
other monitored ar
ea is accessed (e.g. the
rear lid is opened after a door has been
opened), the alarm is triggered again.
● The anti-theft alarm is not activated when
the vehic
le is locked from within using the
central locking button  .
● If the driver door is unlocked mechanically
with the k ey

, only the driver door is unlocked,
the rest of the doors remain locked. Only
when the ignition has been turned on will the
other doors be available - but not unlocked -
and the central lock button will be activated.
● If the vehicle battery is run down or flat
then the anti-theft a
larm will not operate cor-
rectly.
● Vehicle monitoring remains active even if
the batter
y is disconnected or not working for
any reason.
● The alarm is triggered immediately if one of
the batter
y cables is disconnected while the
alarm system is active. Vehicle interior monitoring and anti-
t
o
w sy

stem* It is a monitoring or control function incorpo-
r
at ed in the anti-thef

t alarm* which detects
unauthorised vehicle entry by means of ultra-
sound. Activation
– It is automatically switched on when the
anti-theft al

arm is activated.
Deactivation – Open the vehicle with the key, either me-
chanic

ally or by pressing the  button on
the r emot
e c
ontrol. The time period from
when the door is opened until the key is in-
serted in the contact should not exceed 15
seconds, otherwise the alarm will be trig-
gered.
– Press the button  on the remote control
tw ic
e.

The volumetric sensor and tilt sen-
sors will be deactivated. The alarm system
remains activated.
The vehicle interior monitoring and the anti-
tow system are automatically switched on
again next time the vehicle is locked.
The vehicle interior monitoring and anti-tow
sensor (tilt sensor) are automatically switch-
ed on when the anti-theft alarm is switched
on. In order to activate it, all the doors and
the rear lid must be closed.
If you wish to switch off the vehicle interior
monitoring and the anti-tow system, it must
be done each time that the vehicle is locked;
if not, they will be automatically switched on.
The vehicle interior monitoring and the anti-
tow system should be switched off if animals
are left inside the locked vehicle (otherwise,
122

Operation
Storing objects Lo
a
ding the luggage compartment 

›› ›

table on page 2
All luggage and other loose objects must be
safely secured in the luggage compartment.
Unsecured objects which shift back and forth
could impair the driving safety or driving
characteristics of the vehicle by shifting the
centre of gravity. – Distribute the load evenly in the luggage
comp ar

tment.
– Place heavy objects as far forward as possi-
ble in the lug

gage compartment.
– Place the heavy objects first.
– Secure heavy objects to the fitted fastening
rings

›››
page 153. WARNING
● Loo se lug

gage and other objects in the lug-
gage compartment could cause serious inju-
ries.
● Always stow objects in the luggage com-
partment
and secure them on the fastening
rings.
● Use suitable straps to secure heavy ob-
jects.
● D

uring sudden manoeuvres or accidents,
loose ob
jects can be thrown forward, injuring vehicle occupants or passers-by. This in-
cr
e

ased risk of injury will be further increased
if a loose object is struck by an inflating air-
bag. If this happens, objects may shoot out-
ward like a missile. Risk of fatal injury.
● Please note that the centre of gravity may
shift when tr
ansporting heavy objects; this
may affect vehicle handling and lead to an ac-
cident. Therefore, it is essential to adjust
your speed and driving style accordingly, to
avoid accidents.
● Never exceed the allowed axle weights or
allo
wed maximum weight. If said weights are
exceeded, the driving characteristics of the
vehicle may change, leading to accidents, in-
juries and damage to the vehicle.
● Never leave your vehicle unattended, espe-
cia
lly when the rear lid is open. Children
could climb into the luggage compartment,
closing the door behind them; they will be
trapped and run the risk of death.
● Never allow children to play in or around
the vehic
le. Close and lock all the doors and
rear lid when you leave the vehicle. Before
you lock the vehicle, make sure that there are
no adults or children in the vehicle. Note
● Air cir c

ulation in the vehicle helps reduce
fogging of the windows. Used air escapes
through ventilation slits in the side trim of
the luggage compartment. Ensure that the
ventilation slots are never covered. ●
Strap s

for securing the load to the fasten-
ing rings are commercially available. Luggage compartment cover
3 Applies to the model: LEON/LEON SC
Fig. 159
Rear lid open with the luggage com-
p ar
tment

cover. The luggage compartment cover blocks the
v
iew int
o the lug

gage compartment.
Removing – Remove the straps A and unfasten the
c o
v

er of the support B by pressing up-
w ar
d
s in the direction of arrow 1 .
Fittin g
– Inser
t the cover horizontally so that it coin-
cides
with the “plate” on the axis of the
supports B and press down until it engag-
e s.
148

Transport and practical equipment
Variable floor in the tilted position
When the v
ari
able floor is tilted you can ac-
cess the spare wheel/anti-puncture kit area.
● Lift the variable floor using handle
›››
Fig. 180 1 and pull it back until the front
of the floor h
a
s fully passed the tilted
grooves ››› Fig. 181 3 .
● Run the floor through these grooves with
the help of h
andl

e 1 as the rear seat back-
r e
s
t and until the floor is resting in the
grooves. WARNING
During a sudden driving or braking manoeu-
vre, or in the ev ent

of an accident, objects
could be flung though the interior and cause
serious or fatal injuries.
● Always secure objects, even when the lug-
gage c
ompartment floor is properly lifted.
● Only objects that do not protrude more
than 2/3 the height of
the floor may be car-
ried between the rear seat and the raised lug-
gage compartment floor.
● Only objects that do not weigh than ap-
prox
imately 7.5 kg may be carried between
the rear seat and the raised luggage compart-
ment floor. CAUTION
● The max imum w

eight that can be loaded on
the luggage compartment variable floor in
the top position is 150 kg. ●
Do not l et

the luggage compartment floor
fall when closing it. Always carefully guide it
downwards in a controlled manner. Other-
wise, the lining and the floor of the luggage
compartment could be damaged. Note
SEAT recommends the use of straps to secure
o b j

ects to retaining rings. Roof carrier
Intr oduction The vehicle roof has been designed to opti-
mi
se aer
ody

namics. For this reason, cross
bars or conventional roof carrier systems can-
not be secured to the roof water drains.
As the roof water drains are integrated in the
roof to reduce air resistance, only SEAT-ap-
proved cross bars and roof carrier systems
can be used.
Cases in which cross bars and the roof carri-
er system should be disassembled.
● When they are not used.
● When the vehicle is washed in a car wash.
● When the vehicle height exceeds the maxi-
mum height, for e x

ample, in some garages. WARNING
When heavy or bulky loads are transported
on the roof c

arrier system, car driving per-
formance is affected, as the centre of gravity
shifts and there is greater wind resistance.
● Always secure the load properly using belts
or retainin
g straps that are suitable and in a
good condition.
● Bulky, heavy, long or flat loads have a neg-
ative effect
on aerodynamics, the centre of
gravity and driving performance.
● Avoid sudden braking and manoeuvres.
● Adapt your speed and driving style at all
times t
o suit visibility, weather, road and traf-
fic conditions. CAUTION
● Remo v

e the cross bars and the roof carrier
system before entering a car wash.
● Vehicle height is increased by the installa-
tion of cr
oss bars or a roof carrier system and
the load secured on them. For this purpose,
check that your vehicle's height does not sur-
pass the headspace limit, for example, for un-
derpasses or for entering garage doors.
● Cross bars, a roof carrier system and the
load sec
ured on them should not interfere
with the roof aerial or hamper the path of the
panoramic sun roof ››› page 126 and the rear
lid.
● On opening the rear lid make sure that it
does not
knock into the roof load. » 157
Technical data
Advice
Operation
Emergencies
Safety

Advice
distribution of electrical energy. This signifi-
c antly
impr
oves reliability when starting the
engine, and also prolongs the useful life of
the battery.
The main functions incorporated in the power
management system are battery diagnosis,
residual current management and dynamic
power management.
Battery diagnosis
The battery diagnosis function constantly
registers the condition of the battery. Sen-
sors detect the battery voltage, battery cur-
rent and battery temperature. This enables
the system to calculate the current power lev-
el and charge condition of the battery.
Residual current management
The residual current management reduces
power consumption while the vehicle is
parked. It controls the supply of power to the
various electrical devices while the ignition is
switched off. The system takes the battery di-
agnosis data into consideration.
Depending on the power level of the battery,
switch off the individual electrical devices
one after the other to prevent the battery
from losing too much charge and to ensure
that the engine can be started reliably. Dynamic power management
While the
vehicle is moving, this function dis-
tributes the available power to the various
electrical devices and systems according to
their requirements. The power management
ensures that on-board systems do not con-
sume more electrical power than the alterna-
tor can supply, and thus maintains the maxi-
mum possible battery power level. Note
● Neither is the po

wer management system
able to overcome the given physical limits.
Please remember that the power and useful
life of the battery are limited.
● When there is a risk that the vehicle will
not st
art, the alternator power failure or low
battery charge level warning lamp will be
shown  ››› page 108. Flat battery
Starting ability has first priority.
Shor
t
trip

s, city traffic and low temperatures
all place a heavy load on the battery. In these
conditions a large amount of power is con-
sumed, but only a small amount is supplied.
The situation is also critical if electrical devi-
ces are in use when the engine is not run-
ning. In this case power is consumed when
none is being generated. In these situations you will be aware that the
power m

anagement system is intervening to
control the distribution of electrical power.
When the vehicle is parked for long periods
If you do not drive your vehicle for a period of
several days or weeks, the power manage-
ment will gradually shut off the electrical de-
vices one by one or reduce the amount of cur-
rent they are using. This limits the amount of
power consumed and helps to ensure relia-
ble starting even after a long period. Some
convenience functions, such as remote vehi-
cle opening, may not be available under cer-
tain circumstances. These functions will be
restored when you switch on the ignition and
start the engine.
With the engine switched off
For example, if you listen to the sound sys-
tem with the engine switched off the battery
will run down.
If the energy consumption means there is a
risk that the engine will not start, a text will
appear in vehicles with a driver information
system*.
This driver indicator tells you that you must
start the engine so that the battery can re-
charge.
240

Checking and refilling levels
CAUTION
● Do not mi x
cleaning products recommen-
ded by SEAT with other products. This could
lead to flocculation and may block the wind-
screen washer jets.
● When topping up service fluids, make abso-
lutely c
ertain that you fill the fluids into the
correct reservoirs. Using the wrong fluids
could cause serious malfunctions and engine
damage!
● Not having windscreen wiper fluid reduces
vis
ibility through the windscreen, and leads
to loss of visibility in headlights in models
with headlight washer. Battery
Gener a
l

informationRead the additional information carefully
› ›
›

 page 53.
The battery is located in the engine compart-
ment and is almost maintenance-free. It is
checked as part of the Inspection Service.
Nevertheless, check the terminals are clean
and have the correct tightening torque, espe-
cially in summer and winter.
Disconnecting the battery
The battery should only be disconnected in
exceptional cases. When the battery is dis- connected, some of the vehicle's functions
are “los

t” (››› table on page 253). These
functions will require resetting after the bat-
tery is reconnected.
Deactivate the anti-theft alarm* before you
disconnect the battery Otherwise the alarm
will be triggered.
FunctionReprogramming
One-touch function of
the electric windows››› page 126, One-touch
opening and closing*.
Remote control key
If the vehicle does not re-
spond to the key, they
should be synchronised
››› page 121.
Digital clock››› page 106.
ESC warning lampAfter driving for a few me-
tres, the warning lamp goes
out again. If the vehicle is not used for long periods
The
v
ehic

le has a system for monitoring the
current consumption when the engine is left
unused for long periods of time ››› page 239.
Some functions, such as the interior lights, or
the remote door opening, may be temporarily
disabled to prevent the battery from running
flat. These functions will come back on as
soon as the ignition is switched on and the
engine started. Winter conditions
During the w

inter, the starting power may be
reduced, and if necessary, the battery should
be charged ››› in Important safety warn-
in g
s

for handling a vehicle battery on
page 254
Important safety warnings for han-
dling a v
ehicle battery All work on batteries requires specialist
kno
wl
edg

e. Please refer to a SEAT Official
Service or a workshop specialising in batter-
ies: risk of burns or exploding battery!
The battery must not be opened. Never try to
change the fluid level of the battery. Other-
wise explosive gas is released from the bat-
tery that could cause an explosion. 
Wear eye protection.

Battery acid is very corrosive and caustic. Wear
protective gloves and eye protection. In the event
of electrolyte splashes, rinse off with plenty of
water.

Fires, sparks, open flames and smoking are pro-
hibited.

The battery should only be charged in a well-ven-
tilated zone. Risk of explosion!

Keep children away from acid and batteries!»
253
Technical data
Advice
Operation
Emergencies
Safety

Advice
Tyre useful life Fig. 237
Location of the tyre pressure sticker. Correct inflation pressures and sensible driv-
in
g h
ab
its will increase the useful life of your
tyres.
– Check tyre pressure at least once a month,
and also prior to an

y long trip.
– The tyre pressure should only be checked
when the tyre

s are cold. Do not reduce the
pressure of warm tyres.
– Adjust tyre pressure to the load being car-
ried by the

vehicle. –
In vehic
les with a tyre pressure indicator,
save the pressure of modified tyres
››› page 259, ››› page 256.
– Avoid fast cornering and hard acceleration.
– Inspect the tyres for irregular wear from
time to time.
The usef

ul life of your tyres depends on the
following factors:
Tyre pressure
Tyre pressure values are indicated on the
sticker on the inside of the fuel tank flap
››› Fig. 237.
Insufficient or excessive pressure greatly re-
duces the useful life of the tyres and adverse-
ly affects vehicle performance and ride. Cor-
rect inflation pressures are very important,
especially at high speeds.
Depending on the vehicle, tyre pressure can
be adjusted to medium load to improve driv-
ing comfort (“comfort” tyre pressure). When
driving with comfort tyre pressure fuel con-
sumption may increase slightly.
The tyre pressure must be adjusted according
to the load the vehicle is carrying. If the vehi-
cle is going to carry the maximum load, the
tyre pressure should be increased to maxi-
mum value indicated on the sticker on the in-
side of the fuel tank flap. Do not forget the spare wheel when checking
the tyre pr

essures: Keep this spare wheel in-
flated to the highest pressure required for the
road wheels.
In the case of a minimised temporary spare
wheel (125/70 R16 or 125/70 R18) inflate to
a pressure of 4.2 bar as indicated on the tyre
pressure label on the fuel tank flap.
Driving style
Fast cornering, heavy acceleration and hard
braking (squealing tyres) all increase tyre
wear.
Wheel balance
The wheels on new vehicles are balanced.
However, certain circumstances may lead to
imbalance (run-out), which is detected as vi-
brations in the steering wheel.
Unbalanced wheels should be rebalanced, as
they otherwise cause excessive wear on
steering, suspension and tyres. A wheel must
also be rebalanced when a new tyre is fitted
or if a tyre is repaired.
Incorrect wheel alignment
Incorrect wheel alignment causes excessive
tyre wear, impairing the safety of the vehicle.
If you notice excessive tyre wear, you should
check wheel alignment at a SEAT Official
Service.
256