fuel Seat Leon 5D 2015 Service Manual

Wheels
CAUTION
● Some v ehic
les, for example those with the
Start-Stop system* are fitted with a special
battery (AGM-type or EFB-type battery). If any
other type of battery is fitted, the Start-Stop
function may be considerably reduced and
the vehicle may not stop on repeated occa-
sions.
● Make sure that the vent hose is always at-
tached t
o the original opening on the side of
the battery. Gases or battery acid can other-
wise escape and possibly cause damage.
● The battery holder and clamps must always
be correctly
secured.
● Before starting any work on the battery, al-
way
s observe the warnings listed under
››› page 253, Important safety warnings for
handling a vehicle battery .
● Do not forget to replace the battery cover-
ings, wher
e applicable. It is a protection for
high temperatures. This in turn extends the
vehicle service life. For the sake of the environment
 Batteries contain toxic substances includ-
in g s

ulphuric acid and lead. They must be
disposed of appropriately and must not be
disposed of with ordinary household waste.
Make sure disconnected batteries cannot tip
over. Sulphuric acid could be spilt! Wheels
Wheel s
and ty

res
General notes –
When driving with new tyr e
s, be especially
careful during the first 500 km (300 miles).
– If you have to drive over a kerb or similar
obs

tacle, drive very slowly and as near as
possible at a right angle to the obstacle.
– Check from time to time if the tyres are
dam ag

ed (punctures, cuts, cracks or
dents). Remove any foreign objects embed-
ded in the treads.
– Damaged wheels and tyres must be re-
plac

ed immediately.
– Keep grease, oil and fuel off the tyres.
– Replace any missing valve caps as soon as
poss

ible.
– Mark the wheels before taking them off so
that they

rotate in the same direction when
put back.
– When removed, the wheels or tyres should
be stor

ed in a cool, dry and preferably dark
place.
New tyres
New tyres do not give maximum grip straight
away and should therefore be “run in” by driving carefully and at moderate speeds for
about the firs

t 500 km (300 miles). This will
also increase the useful life of the tyres.
The tread depth of new tyres may vary, ac-
cording to the type and make of tyre and the
tread pattern.
Concealed damage
Damage to tyres and rims is often not readily
visible. If you notice unusual vibration or the
car pulling to one side, this may indicate that
one of the tyres is damaged. Reduce speed
immediately if there is any reason to suspect
that damage may have occurred. Inspect the
tyres for damage. If no external damage is
visible, drive slowly and carefully to the near-
est specialised workshop and have the car
inspected.
Tyres with directional tread pattern
An arrow on the tyre sidewall indicates the di-
rection of rotation on single drive tyres. Al-
ways note the direction of rotation indicated
when mounting the wheel. This guarantees
optimum grip and helps to avoid aquaplan-
ing, excessive noise and wear.
Retrofitting accessories
If you wish to change or fit wheels, rims or
wheel trims, we recommend that you consult
with a SEAT Official Service centre for advice
regarding current techniques.
255
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

Wheels
WARNING
● Alw a
ys adapt the tyre pressure accordingly
when the vehicle load changes.
● A tyre with low air pressure has to flex a lot
more when the v
ehicle is heavily loaded or at
high speeds, therefore causing overheating
to occur. Under these conditions, the tyre
bead may be released or the tyre may burst.
Risk of accident! For the sake of the environment
Under-inflated tyres will increase fuel con-
sumption. Wear indicators
Fig. 238
Tyre tread: tread wear indicators Tread wear indicators indicate if a tyre is
w
orn. The origin
al
tyres on your vehicle have
1.6 mm high “trea
d wear indicators” running
across the tread. Depending on the manufac-
turer, there will be 6 to 8 of them spaced at
equal distances around the tyre. Markings on
the tyre sidewall (for instance the letters
“TWI” or a triangle) indicate the positions of
the tread wear indicators.
The minimum tread depth required by law is
1.6 mm (measured in the tread grooves next
to the tread wear indicators). (Different fig-
ures may apply in other countries.) WARNING
The tyres must be replaced at the latest when
the tre a

d is worn down to the tread wear indi-
cators. Failure to follow this instruction could
result in an accident.
● Especially in difficult driving conditions
such a
s wet or icy roads. It is important that
the tyre tread be as deep as possible and be
approximately the same on the tyres of both
the front and the rear axles.
● The scant driving safety due to insufficient
trea
d depth is particularly evident in vehicle
handling, when there is a risk of “aquaplan-
ing” in deep puddles of water and when driv-
ing through corners, and braking is also ad-
versely affected.
● The speed has to be adapted accordingly,
otherwi
se there is a risk of losing control over
the vehicle. Changing wheels
Fig. 239
Interchanging tyres. To ensure that the wear is equal on all tyres
the wheel
s
shou

ld be changed round from
time to time according to the system
››› Fig. 239. The useful life of all the tyres will
then be about the same time.
New tyres or new wheels –
All four wheels must be fitted with tyres of
the s ame type, s
iz

e (rolling circumference)
and preferably the same tread pattern.
– Tyres should be replaced at least in pairs
and not individual

ly (i.e. both front tyres or
both rear tyres together).
– Do not use tyres whose effective size ex-
ceeds

the dimensions of the factory-ap-
proved makes of tyre. »
257
Technical data
Advice
Operation
Emergencies
Safety

Wheels
manufacturer. Inadequate tyre clearance can
re
s
ult in damage to the tyres or the vehicle,
causing a serious safety risk. Risk of acci-
dent! It may also invalidate the vehicle's reg-
istration for use on public roads.
● Avoid running the vehicle on tyres that are
more than 6
years old. If you have no alterna-
tive, you should drive slowly and with extra
care at all times.
● If wheel trims are fitted after the car is pur-
cha
sed, ensure that there is an adequate flow
of air for cooling the brake system. For the sake of the environment
Old tyres must be disposed of according to
the la w

s in the country concerned. Note
● Never mou nt

used tyres if you are not sure
of their “previous history”.
● For technical reasons, it is not generally
poss
ible to use the wheels from other vehi-
cles. In some cases, this may also be true for
the same model of wheel. Wheel bolts
The wheel
bolts
ar
e m
atched to the rims.
When installing different wheels (for instance
alloy wheels or wheels with winter tyres) it is
important to use the correct wheel bolts with
the right length and correctly shaped bolt heads. This ensures that wheels are fitted se-
curely

and that the brake system functions
correctly.
The wheel bolts must be clean and turn easi-
ly.
A special adapter is required to turn the anti-
theft wheel bolts* ›››
 page 59.
Tyre monitoring systems Introduction WARNING
Unsuitable handling of the wheels and tyres
ma y

lead to sudden tyre pressure losses, to
tread separation or even to a blow-out.
● Check tyre pressures regularly and ensure
they are m
aintained at the pressures indica-
ted. Tyre pressure that is too low could cause
overheating, resulting in tread detachment or
even burst tyres.
● Tyre pressure should be that indicated on
the label when the ty
res are cold at all times
››› page 267.
● Regularly check the cold inflation pressure
of the tyr
es. If necessary, change the tyre
pressure of the vehicle tyres while they are
cold.
● Regularly check your tyres for damage and
wear
. ●
Never e x

ceed the maximum permitted
speed or loads specified for the type of tyre
fitted on your vehicle. For the sake of the environment
Under-inflated tyres lead to increased fuel
c on s

umption and tyre wear. Note
● Drivin g f

or the first time with new tyres at a
high speed can cause them to slightly ex-
pand, which could then produce an air pres-
sure warning.
● Only replace used tyres with those author-
ised by
SEAT for the corresponding type vehi-
cle.
● Do not only rely on the tyre monitoring sys-
tem. Re
gularly check your tyres to ensure
that the tyre pressure is correct and that the
tyres are not damaged due to puncture, cuts,
tears and impacts/dents. Remove objects
from the tyres only when they have not
pierced the tyres. 259
Technical data
Advice
Operation
Emergencies
Safety

Advice
speeds the programmed values are collected
and monit or
ed.
W
ith the wheels under very heavy loads, the
tyre pressure must be increased to the total
recommended tyre pressure before the cali-
bration ››› page 267. Note
● The tyr e monit

oring indicator does not
function when there is a fault in the ESC or
ABS ››› page 178.
● An erroneous indication may be given when
snow c
hains are in use because they increase
the tread of the wheel. Temporary spare wheel
Gener a
l

information Fig. 242
Compact temporary spare wheel:
r ai
sed floor p

anel. The temporary spare wheel has been de-
s
igned t
o be u

sed for short periods of time.
Have the tyres checked, and if necessary, re-
placed as soon as possible at a SEAT Official
Service or at a specialised workshop.
Please note the following restrictions when
using the compact temporary spare wheel.
The compact temporary spare wheel is de-
signed specifically for this model. For this
reason, do not use a temporary spare wheel
from a different type of vehicle.
Removing the temporary spare wheel
– Lift and hold up the floor panel to remove
the temporar

y spare wheel ››› Fig. 242.
– Turn the thumb wheel anti-clockwise.
– Take out the temporary spare wheel.
Chains
F

or technical reasons, snow chains must not
be used on the temporary spare wheel.
If you have a puncture on one of the front
wheels when using snow chains, fit the tem-
porary spare wheel in place of one of the rear
wheels. Fit the snow chains on the rear wheel
that you have removed and replace the punc-
tured front wheel with this wheel. WARNING
● Aft er fittin

g the temporary spare wheel,
check the tyre pressures as soon as possible. Failure to do so may cause an accident. The
tyr
e pr

essures are listed on the inside of the
fuel tank flap.
● Do not drive at over 80 km/h (50 mph)
when the temporar
y spare wheel is fitted on
the vehicle: risk of accident!
● Avoid heavy acceleration, hard braking and
fas
t cornering: risk of accident!
● Never use more than one temporary spare
wheel at the s
ame time, risk of accident.
● No other type of tyre (normal summer or
winter ty
re) may be fitted on the compact
temporary spare wheel rim.
● If you are driving using the spare wheel,
the ACC
system could automatically switch
off during the journey. Switch off the system
when starting off. Extraction of the spare wheel in vehi-
c
l
e

s with SEAT SOUND 10 speakers
(with subwoofer)* –
Disassemble the s ub
woofer's
floor panel
(carpet) as follows:
– LEON/LEON SC model: first, p
ull the carpet
in the direction of the backrest and then
pull it upwards to remove it. LEON ST mod-
el: lift and secure the floor storage com-
partment as explained in ››› page 157.
– Disconnect the subwoofer's
speaker cable.
– Turn the securing wheel anti-clockwise.
262

Wheels
– Remo
v
e the subwoofer speaker and the
spare wheel.
– When replacing the spare wheel, place the
subwoofer

speaker in the direction indica-
ted by the arrow and with the word
“FRONT” facing forward.
– Reconnect the speaker cable and firmly ro-
tate the sec

uring wheel clockwise so that
the subwoofer system and wheel are firmly
in place.
Winter service Winter ty
res–
Winter tyres must be fitted on al
l
four
wheels.
– Only use winter tyres that are approved for
your v

ehicle.
– Please note that the maximum permissible
speed for w

inter tyres may be lower than
for summer tyres.
– Also note that winter tyres are no longer ef-
fective when the

tread is worn down.
– After fitting the wheels you must always
check

the tyre pressures. The correct tyre pressures are listed on the sticker on the
inside of

the fuel tank flap ››› page 256.
In winter road conditions winter tyres will
considerably improve vehicle handling. The
design of summer tyres (width, rubber com-
pound, tread pattern) gives less grip on ice
and snow. This applies particularly to vehi-
cles equipped with wide section tyres or with
high speed tyres (code letters H, V or Y on
the sidewall).
Only use winter tyres of the correct type ap-
proved for your vehicle. The sizes of these
tyres are specified in the vehicle's docu-
ments (e.g. EC Certificate of Conformity or
COC 1)
). The vehicle documentation varies de-
pending on the country of residence. See al-
so ››› page 257.
Winter tyres lose a great deal of their proper-
ties when the tread is worn down to a depth
of 4 mm.
The performance of winter tyres is also se-
verely impaired by ageing, even if the tread is
still much deeper than 4 mm.
Winter tyres are subject to the following max-
imum speed limits according to speed rating
code letter: ››› Speed rating
code letter
››› page 257Maximum speed limit
Q160 km/h
S180 km/h
T190 km/h
H210 km/h
V240 km/h (150 mph)
(note restrictions)
W270 km/h
Y300 km/h Vehicles capable of exceeding these speeds
mu
s
t

have an appropriate sticker attached so
that it is visible to the driver. Suitable stickers
are available from the SEAT Official Service
and specialised workshop. Please note the
regulations to this effect in your country.
“All-weather” tyres can also be used instead
of winter tyres.
Using winter tyres with V-rating
Please note that the generally applicable
240 km/h (150 mph) speed rating for winter
tyres with the letter V is subject to technical
restrictions; the maximum permissible
speed for your vehicle may be significantly »1)
COC = certificate of conformity.
263
Technical data
Advice
Operation
Emergencies
Safety

Advice
lower. The maximum speed limit for these
ty r
es depends directly on the maximum axle
weights for your car and on the listed weight
rating of the tyres being used.
It is best to contact a SEAT Official Service to
check the maximum speed which is permissi-
ble for the V-rated tyres fitted on your car on
the basis of this information. WARNING
Exceeding the maximum speed permitted for
the wint er ty

res fitted on your car can cause
tyre failure, resulting in a loss of control of
the vehicle – risk of accident. For the sake of the environment
Summer tyres should be fitted again as soon
as po

ssible after the winter period; they give
better handling on roads which are free of
snow and ice. Summer tyres perform with
less rolling noise, tyre wear and – most im-
portant – reduce fuel consumption. 264

Technical specifications
Technical data
T ec
hnic
al specifications
Important The information in the vehicle documentation
alwa
y

s takes precedence over the informa-
tion in this Instruction Manual.
All technical specifications provided in this
documentation are valid for the standard
model in Spain. The vehicle data card inclu-
ded in the Maintenance Programme or the
vehicle registration documents shows which
engine is installed in the vehicle.
The figures may be different depending
whether additional equipment is fitted, for
different models, for special vehicles and for
other countries. Abbreviations used in the Technical Specifi-
cation
s

section
kWKilowatt, engine power measurement.
PSPferdestärke (horsepower), formerly used
to denote engine power.
rpmRevolutions per minute - engine speed.
NmNewton metres, unit of engine torque.
litres per100 kmFuel consumption in litres per 100 km
(70 miles).
g/kmCarbon dioxide emissions in grams per
km (mile) travelled.
CO 2Carbon dioxide
CNCetane number, indication of the diesel
combustion power.
RONResearch octane number, indication of
the knock resistance of petrol. Vehicle identification data
Fig. 243
Vehicle data sticker (boot). Fig. 244
Chassis number. » 265
Technical data
Advice
Operation
Emergencies
Safety

Technical data
VIN in the Easy Connect – Select: Function button CAR > control but-
t on
(Car) *
Systems > Service & Con-
trol > Chassis number .
Chassis number
The VIN is located in the Easy Connect, on the
vehicle data sticker and under the wind-
screen, on the driver side ››› Fig. 244. Addi-
tionally, the chassis number is located in the
engine compartment, on the right-hand side.
The number is engraved on the top side rail,
and is partially covered.
Type plate
The type plate is located on the right side
door pillar. Vehicles for certain export coun-
tries do not have a type plate.
Vehicle data sticker
The vehicle data sticker is under the carpet
trim in the luggage compartment, in the
spare wheel well. A sticker with the vehicle
data is attached to the inside cover of the
Maintenance Programme.
The following information is provided on the
vehicle data sticker: ››› Fig. 243
Vehicle identification number (chassis
number)
1 Vehicle type, model, capacity, engine
type, fini
sh, en
gine po

wer and gearbox
type
Engine code, gearbox code, external
paint code and internal equipment code
Optional extras and PR numbers
Consumption (l/100 km) and CO 2 emis-
sions (g/km)
A Urban cycle consumption
B Out-of-town consumption
C Combined consumption and CO
2
emi s
s

ions
Identifying letters
The identifying letters of the engine can be
viewed on the instrument panel when the en-
gine is switched off and the ignition is on.
● Hold down the 0.0/SET
4
› ›
› Fig. 124
but-
ton for more than 15 seconds.
Information on fuel consump-
tion
Fuel c

onsumption The consumption and emission details
sho
wn on the v

ehicle data sticker differ from
one vehicle to another. 2 3
4
5 Vehicle fuel consumption and CO
2 emi
s
s
ions
appear on the vehicle data sticker in the
spare wheel well, inside the boot and on the
rear cover of the Maintenance Programme.
The fuel consumption and CO 2 emission val-
ues refer to the weight category assigned to
your vehicle according to the engine and
gearbox combination, as well as the specific
equipment fitted, and is only used to com-
pare between the different models.
The fuel consumption and CO 2 emissions do
not depend only on the performance of the
vehicle, they can also differ from the estab-
lished values depending on other factors
such as driving style, road conditions, traffic
conditions, environmental conditions, load
and number of passengers.
Calculation of fuel consumption
The consumption values have been calcula-
ted based on measurements performed or
supervised by certified CE laboratories ac-
cording to the latest version of directives
715/2007/EC and 80/1268/CEE (for more in-
formation consult the European Union Publi-
cations Office at EUR-Lex: © European Union,
http://eur-lex.europa.eu/en/index.htm) and
are valid for the kerb weight indicated for the
vehicle.
266

Technical specifications
Note
In practice, and considering all the factors
mentioned here, c on
sumption values can dif-
fer from those calculated in the current Euro-
pean regulations. Weights
Kerb weight refers to the basic model with a
fuel
t

ank filled to 90% capacity and without
optional extras. The figure quoted includes
75 kg to allow for the weight of the driver.
Special versions, optional equipment fittings
or retro-fitting accessories will increase the
weight of the vehicle ››› .
WARNING
● Ple a

se note that the centre of gravity may
shift when transporting heavy objects; this
may affect vehicle handling and lead to an ac-
cident. Always adjust your speed and driving
style to suit road conditions and require-
ments.
● Never exceed the gross axle weight rating
or the gros
s vehicle weight rating. If the per-
missible axle load or the permissible total
weight is exceeded, the driving characteris-
tics of the vehicle may change, which could
lead to accidents, injuries and damage to the
vehicle. Driving with a trailer
Tr
ai

ler weights Trailer weight
The trai
l

er weights and drawbar loads ap-
proved are selected in intensive trials accord-
ing to precisely defined criteria. The ap-
proved trailer weights apply to vehicles in the
EU and generally for maximum speeds of 80
km/h (100 km/h in certain circumstances).
The figures may be different in other coun-
tries. All data in the official vehicle documen-
tation takes precedence over these data at all
times ››› .
Dr a
wb

ar loads
The maximum permitted drawbar load on the
ball joint of the towing bracket must not ex-
ceed 80 kg.
In the interest of road safety, we recommend
that you always tow approaching the maxi-
mum drawbar load. The response of the trail-
er on the road will be poor, if the drawbar
load is too small.
If the maximum permissible drawbar load
cannot be met (e.g. with small, empty and
light-weight single axle trailers or tandem
axle trailers with a wheelbase of less than 1
metre), a minimum of 4% of the actual trailer
weight is legally required for the drawbar
load. WARNING
● For s af

ety reasons, do not exceed the 80
km/h (50 mph) limit. This is also valid in
countries where higher speeds are permitted.
● Never exceed the maximum trailer weights
or the drawb
ar load. If the permissible axle
load or the permissible total weight is excee-
ded, the driving characteristics of the vehicle
may change, leading to accidents, injuries
and damage to the vehicle. Wheels
Ty
r

e pressure, snow chains, wheel
bolts Tyre pressures
The s
tic
k

er with the tyre pressure values can
be found on the inside of the fuel tank flap.
The tyre pressure values given there are for
cold tyres. The slightly raised pressures of
warm tyres must not be reduced. ››› The pressure for win
t
er
tyres is 0.2 bar
(2.9 psi / 20 kPa) higher than that of summer
tyres.
Snow chains
Snow chains may be fitted only to the front
wheels, and only for the following tyres: »
267
Technical data
Advice
Operation
Emergencies
Safety