2015 Seat Leon SC maintenance

Foreword
This Instruction Manual and its correspond-
in
g s
up
plements should be read carefully to
familiarise yourself with your vehicle.
Besides the regular care and maintenance of
the vehicle, its correct handling will help pre-
serve its value.
For safety reasons, always note the informa-
tion concerning accessories, modifications
and part replacements.
If selling the vehicle, give all of the on-board
documentation to the new owner, as it
should be kept with the vehicle. You can access the information in this man-
ual us
ing:
● Thematic table of contents that follows the
manual’s g
eneral chapter structure.
● Visual table of contents that uses graphics
to indicat
e the pages containing “essential”
information, which is detailed in correspond-
ing chapters.
● Alphabetical index with many terms and
synonyms
to help you find information. WARNING
Read and always observe safety informa-
tion conc ernin

g the passenger's front air-
bag ››› page 84, Important information
regarding the front passenger's airbag .»

Table of Contents
Monitoring system Front Assist* . . . . . . . . . . . . 197
Lane Assist system* . . . . . . . . . . . . . . . . . . . . . . 202
SEAT Drive Profile* . . . . . . . . . . . . . . . . . . . . . . . 204
Traffic sign detection system . . . . . . . . . . . . . . . 208
Tiredness detection (break recommenda-
tion)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
210
P ark
ing aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Rear Assist “Rear View Camera”* . . . . . . . . . . . 217
Towing bracket device . . . . . . . . . . . . . . . . . . . . 220
Towing bracket device* . . . . . . . . . . . . . . . . . . . 220
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Care and maintenance . . . . . . . . . . . . . . . . . . . . 230
Accessories and modifications to the vehi-
cle
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Care and cleaning . . . . . . . . . . . . . . . . . . . . . . . 231
Vehicle exterior care . . . . . . . . . . . . . . . . . . . . . . 231
Caring for the vehicle interior . . . . . . . . . . . . . . 235
Intelligent technology . . . . . . . . . . . . . . . . . . . . 238
Electromechanical steering . . . . . . . . . . . . . . . . 238
Progressive steering . . . . . . . . . . . . . . . . . . . . . 238
Four-wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . 239
Power Management . . . . . . . . . . . . . . . . . . . . . . 239
Checking and refilling levels . . . . . . . . . . . . . . . 241
Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Engine compartment . . . . . . . . . . . . . . . . . . . . . 246
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Windscreen washer reservoir . . . . . . . . . . . . . . 252
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . 255
Tyre monitoring systems . . . . . . . . . . . . . . . . . . 259
Temporary spare wheel . . . . . . . . . . . . . . . . . . . 262
Winter service . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 Technical data
. . . . . . . . . . . . . . . . . . . . . . . . 265
Technical specifications . . . . . . . . . . . . . . . . . . 265
Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Vehicle identification data . . . . . . . . . . . . . . . . . 265
Information on fuel consumption . . . . . . . . . . . 266
Driving with a trailer . . . . . . . . . . . . . . . . . . . . . . 267
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Engine data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
6

The essentialsMenu “Partial time”
Partial
timeFor about 5 seconds a partial time is dis-
played. The timer continues in parallel.
New lap
The timer of the current lap stops and a
new lap starts immediately. The time for
the lap you have just completed is inclu-
ded in the statistics.
StopThe current lap timer will be interrupted.
The lap does not end. The
Pause menu is
displayed.
Menu “Statistics”

View of the latest lap times:
– total time
– best lap time
– worst lap time
– average lap duration
A maximum of 10 laps is possible, and a
total duration of 99 hours, 59 minutes
and 59 seconds.
If one of the 2 limits is reached, you will
have to reset the statistics in order to be-
gin a new timer.
BackThis returns to the previous menu.
Reset-
ting to
zeroAll the memorised statistical data are re-
set. WARNING
Do your best to avoid handling the timer
whil e driv

ing. ●
Only set

the timer or consult statistics
when the vehicle is stationary.
● While driving, do not handle the timer in
complic
ated driving situations. Speed warning device
The speed warning device warns the driver
when they h
av

e exceeded the pre-set speed
limit by 3 km/h. An audible warning is given
and the lamp  can be seen simultaneously
on the instrument panel, as well as a mes-
sage for the driver: speed warning ex- ceeded! The warning lamp  switches off
when reducing speed below the stored maxi-
mum limit.
Speed warning programming is recommen-
ded if you wish to be reminded of a maxi-
mum speed, such as when travelling in a
country with different speed limits or for a
maximum speed for winter tyres.
Setting speed limit warning
You can use the radio or the Easy Connect* to
set, alter or cancel the speed limit warning.
● Vehicles with radio : pres
s the button SETUP > control button  Driver Assistant
>
Speed warning .
● Vehicles with Easy Connect : pres
s the but-
ton Systems or else Vehicle systems >
Driver assistant > Speed warning.The warning limit can be set from 30 to
240 km/h (20 to 150 mph).
The a

djustment
is done in 10 km/h (mph) intervals. Note
● Ple a

se bear in mind that, even with the
speed warning function, it is still important
to keep an eye on the vehicle speed with the
speedometer and to observe the legal speed
limits.
● The speed limit warning function in the ver-
sion for sev
eral countries warns you at a
speed of 120 km/h (80 mph). This is a facto-
ry-set speed limit. Service intervals
The service interval indication appears on the
in
s
trument

panel display ›››
 Fig. 124
3 .
S EA
T di
stinguishes between services with en-
gine oil change (e.g. Oil change service) and
services without engine oil change (e.g. In-
spection).
In vehicles with Services established by time
or mileage, the service intervals are already
pre-defined.
In vehicles with LongLife Service , the inter-
vals are determined individually. Thanks to
technological progress, maintenance work
has been greatly reduced. Because of the
technology used by SEAT, with this service 38

The essentials
you only need to change the oil when the ve-
hic l
e so r
equires. To calculate this change
(max. 2 years), the vehicle's conditions of
use and individual driving styles are consid-
ered. The pre-warning first appears 20 days
before the date established for the corre-
sponding service. The kilometres (miles) re-
maining until the next service are always
rounded up to the nearest 100 km (miles)
and the time is given in complete days. The
current service message cannot be viewed
until 500 km after the last service. Prior to
this, only lines are visible on the display.
Inspection reminder
When the Service date is approaching, when
the ignition is switched on a Service remind-
er is displayed.
Vehicles without text messages : a span-
ner  will be displayed on the instrument
panel plus an indication in km.
The kilometres indicated are the maximum
number of kilometres that can be travelled
until the next service. After a few seconds,
the display mode changes. A clock symbol
appears and the number of days until the
next service is due.
Vehicles with text messages : Service in
--- km or --- days will be shown on the
instrument panel display. Service due
When the servic
e date is due, an audible
warning is given when the ignition is switch-
ed on and the spanner displayed on the
screen flashes for a few seconds .
Vehicles with text messages : Service now
will be shown on the instrument panel dis-
play.
Reading a service notification
With the ignition switched on, the engine off
and the vehicle at a standstill, the current
service notification can be read:
Press and hold the button ›››
 Fig. 124
4 for more than 5 seconds to consult the serv-
ic
e me
s

sage.
When the service date has passed , a minus
sign is displayed in front of the number of kil-
ometres or days.
Vehicles with text messages : the following
message is displayed: Service --- km
(miles) or --- days ago .
The time can also be set via the  key and
Set up function button in the Easy Connect
sy s
t

em ›››
 page 110.
Resetting service interval display
If the service was not carried out by a SEAT
dealership, the display can be reset as fol-
lows: ●
Switc
h off the ignition, press and hold but-
ton ›››
 Fig. 124
4 .
● Switch ignition back on.
● Release THE 4
› ››
 Fig. 124
b
utton and
press it again for the next 20 seconds. Note
● The serv ic

e message disappears after a few
seconds, when the engine is started or when OK/RESET is pressed on the windscreen wiper
lev er

, or OK on the multifunction steering
wheel.
● In v
ehicles with the LongLife system in
which the batt
ery has been disconnected for
a long period of time, it is not possible to cal-
culate the date of the next service. Therefore
the service interval display may not be cor- rect. In this case, bear in mind the maximum
service intervals permitted in the ››› Book-
let Maintenance Programme.
● If you reset the display manually, the next
servic
e interval will be indicated as in vehi-
cles with fixed service intervals. For this rea-
son we recommend that the service interval
display be reset by a SEAT authorised service. 39

The essentials
maintenance. It is checked as part of the In-
s pection
Ser
vice.

››› in Important safety warnings for
handling a vehicle battery on page 254
››› page 253 54

Driving
Economical and environmentally-
friendly driv
in
gFuel consumption, environmental pollution
and we
ar t

o the engine, brakes and tyres de-
pends largely on driving style. Fuel consump-
tion can be reduced by 10-15% with an eco-
nomical driving style and proper anticipation
of traffic conditions. The following section
gives you some tips on lessening the impact
on the environment and reducing your oper-
ating costs at the same time.
Active cylinder management (ACT ®
)*

››› table on page 2
Depending on vehicle equipment, the active
cylinder management (ACT ®
) may automati-
cally deactivate some of the engine cylinders
if the driving situation does not require too
much power. When it is switched off, no fuel
is injected into these cylinders, hence total
fuel consumption may be reduced. The num-
ber of active cylinders can be seen on the in-
strument panel display ›››
 page 32.
Foresight when driving
Acceleration causes the vehicle to consume
more fuel. If you think ahead when driving,
you will need to brake less and thus acceler-
ate less. Wherever possible, let the car roll
slowly to a stop, with a gear engaged (for in-
stance when you can see that the next traffic lights are red). This takes advantage of the
engine br
ak

ing effect, reducing wear on the
brakes and tyres. Emissions and fuel con-
sumption will drop to zero due to the overrun
fuel cut-off.
Changing gear to save energy
An effective way of saving is to change in ad-
vance to a higher gear. Running the engine at
high rpm in the lower gears uses an unneces-
sary amount of fuel.
Manual gearbox : shift up from first to second
gear as soon as possible. In any case, we rec-
ommend that you change to a higher gear
upon reaching 2,000 rpm. Choosing the right
gear enables fuel savings. Select the highest
possible gear appropriate for the driving sit-
uation (the engine should continue function-
ing with cyclical regularity).
Automatic gearbox : accelerate gradually and
without reaching the “kick-down” position.
Avoid driving at high speed
Avoid travelling at top speed, whenever pos-
sible. Fuel consumption, emission of harmful
gases and noise pollution multiply dispropor-
tionately as speed is increased. Driving at
moderate speeds will help to save fuel.
Reduce idling time
In vehicles with the Start-Stop system idling
is automatically reduced. In vehicles without the Start-Stop system it is worth switching off
the engine, for e
xample, at level crossings
and at traffic lights that remain red for long
periods of time. When an engine has reached
operating temperature, and depending on
the cylinder capacity, keeping it switched off
for a minimum of about 5 seconds already
saves more than the amount of fuel necessa-
ry for restarting.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high dur-
ing this initial warm-up phase. It is therefore
best to drive off immediately after starting
the engine. Avoid running the engine at high
speed.
Regular maintenance
Regular servicing helps in saving fuel even
before the engine is started. A well-serviced
engine gives you the benefit of improved fuel
efficiency as well as maximum reliability and
an enhanced resale value. A badly serviced
engine can consume up to 10% more fuel
than necessary.
Avoid short journeys
The engine and catalytic converter need to
reach their optimal operating temperature in
order to minimise fuel consumption and
emissions. »
177
Technical data
Advice
Operation
Emergencies
Safety

Care and maintenance
A SEAT Official Service and specialised work-
shop w i
l
l be able to inform you about options
for installing and operating radio transmitters
with a higher transmitting power.
Mobile radio transmitters
Commercial mobile telephones or radio
equipment might interfere with the electron-
ics of your vehicle and cause malfunctions.
This may be due to:
● No external aerial.
● External aerial incorrectly installed.
● Transmitting power more than 10 W.
You mus
t, therefore, do not operate portable
mobile telephones or radio equipment inside
the vehicle without a properly installed exter-
nal aerial ››› .
Pl e
a

se note also that the maximum range of
the equipment can only be achieved with an
external aerial.
Business equipment
Retrofit installation of business or private
equipment in the vehicle is permitted, provi-
ded the equipment cannot interfere with the
driver's immediate control of the vehicle and
that any such equipment carries the  mark.
Any retrofit equipment that could influence
the driver's control of the vehicle must have a
type approval for your vehicle and must carry
the e mark. WARNING
Mobile telephones or radio equipment which
is oper

ated inside the vehicle without a prop-
erly installed external aerial can create exces-
sive magnetic fields that could cause a health
hazard. Note
● The pos t

erior fitting of electric and elec-
tronic equipment in this vehicle affects its li-
cence and could lead to the withdrawal of the
vehicle registration document under certain
circumstances.
● Please use the mobile telephone/radio op-
erating in
structions. Care and cleaning
Gener a
l

information Regular and careful care helps to
maint
ain
the
value of the vehicle. This may also be one
of the requirements for upholding any war-
ranty claims in the event of corrosion or paint
defects.
SEAT Official Services and specialist retailers
carry stocks of suitable car care materials.
Please follow the instructions for use on the
packaging. WARNING
● Cle

aning products and other materials used
for car care can be damaging to your health if
misused.
● Always keep care products in a safe place,
out of the r
each of children. Failure to comply
could result in poisoning. For the sake of the environment
● If po s

sible, use environmentally friendly
products.
● The remains of car care products should not
be dispo
sed of with ordinary household
waste. Vehicle exterior care
W a
shin

g the vehicle The longer substances such as insects, bird
dr
op
pin

gs, resinous tree sap, road dirt, in-
dustrial deposits, tar, soot or road salt and
other aggressive materials remain on the ve-
hicle, the more damage they do to the paint-
work. High temperatures (for instance due to
strong sunlight) further intensify the corro-
sive effect.
After the period when salt is put on the roads
it is important to have the underside of the
vehicle washed thoroughly. »
231
Technical data
Advice
Operation
Emergencies
Safety

Care and maintenance
Camera sensors and lenses ●
Use a small brush to remove snow and a
de-icer s pr
ay to remove ice.
● Clean the sensors with a solvent-free prod-
uct and a soft, dr
y cloth.
● Moisten the camera lens using a standard
alcohol-b
ased glass cleaning agent and
clean the lens with a dry cloth. In the active
lane assist*, the area in front of the lens is
normally cleaned with the windscreen wash-
er. CAUTION
● When y ou c

lean the vehicle with a pressure
washer:
–Stay a suitable distance from the sensors
on the front and rear bumpers.
– Do not clean the camera lenses or sur-
rounding area with the pressure washer.
● Never use warm or hot water to remove
snow and ic
e from the reverse camera lens,
as it could crack the lens.
● Never use abrasive cleaning agents on the
lens. Waxing and polishing
Care
W
ax
in

g protects the paintwork. It is time to
apply a coat of good wax when water no lon- ger forms droplets
and ro
lls off the clean
paintwork.
Even if a wax solution is used regularly in the
vehicle washing tunnel, it is advisable to pro-
tect the paint with a hard wax coating at least
twice a year.
In the summer, you will find it is much easier
to remove dead insects (which accumulate
on the bumper and the front of the bonnet) if
the car has been treated with care products
recently.
Polishing
Polishing is only necessary if the paint has
lost its shine, and the gloss cannot be
brought back by putting on wax.
If the polish does not contain wax, a wax
product should be applied after polishing. CAUTION
● Do not u se po

lishes and hard wax on pain-
ted parts with a matt finish or on plastic
parts.
● Do not apply paint polishes to the side trim
that ru
ns around the panoramic roof and ends
on the windscreen. However, it can be treated
with hard wax. Trims
In respect for the environment, the silver-
pl
at

ed trims on the body are made of pure
aluminium (they do not contain chrome).
Dirt or marks on the trim mouldings should
be removed with a cleaning product with a
neutral PH (do not use a chrome cleaner).
Body polish is also unsuitable for use on trim
mouldings. The intensive cleaning fluids of-
ten used before the car goes into a car wash
may contain alkaline substances, which can
cause dull or milky patches when they dry
out.
SEAT Official Services carry stocks of cleaning
products which have been tested for use on
your vehicle and are not harmful to the envi-
ronment.
Plastic parts Plastic parts are cleaned with a power wash-
er
. If
thi

s is not sufficient, plastic parts
should only be treated with a special solvent-
free plastic cleaning agent . Do not use paint-
work cleaners, polishes or wax on plastic
parts.
233
Technical data
Advice
Operation
Emergencies
Safety