2017 Seat Leon SC maintenance

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 61.
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 277). 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 138, One-touch
opening and closing*.
Remote control key
If the vehicle does not re-
spond to the key, they
should be synchronised
››› page 132.
Digital clock››› page 116.
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 201.
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 278
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!»
277
Technical data
Advice
Operation
Emergencies
Safety

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.
CZCetane number, indication of the diesel
combustion power.
RONResearch octane number, indication of
the knock resistance of petrol. Vehicle identification data
Fig. 257
Vehicle data sticker (luggage com-
p ar tment). Fig. 258
Chassis number. VIN in the Easy Connect
● Select: 
 button > function button SET-
TINGS > Service > Chassis number .
Ch a
s

sis number
The VIN is located in the Easy Connect, on the
vehicle data sticker and under the wind-
screen, on the driver side ››› Fig. 258. 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.
Identification plate
The type plate is located on the right side
door pillar. Vehicles for certain export coun-
tries do not have a type plate. »
289
Technical data
Advice
Operation
Emergencies
Safety

Technical data
Vehicle data label
The v
ehic
le 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. 257
Vehicle identification number (chassis
number)
Vehicle type, model, capacity, engine
type, finish, engine power and gearbox
type
Engine code, gearbox code, external
paint code and internal equipment code
Optional extras and PR numbers
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 button 0.0/SET on the dash
p anel
f

or more than 15 seconds.
1 2
3
4 Fuel consumption data
Fuel
c

onsumption Approved consumption values are derived
from me
a

surements performed or supervised
by certified EU laboratories, according to the
legislation in force at the time (for more infor-
mation, see the Publications Office of the Eu-
ropean Union on the EUR-Lex website: © Eu-
ropean Union, http://eur-lex.europa.eu/) and
apply to the specified vehicle characteristics.
The values relating to fuel consumption and
CO 2 emissions can be found in the documen-
tation provided to the purchaser of the vehi-
cle at the time of purchase.
Fuel consumption and CO 2 emissions depend
on the equipment/features of each individual
vehicle, as well as on the driving style, road
conditions, traffic conditions, environmental
conditions, load or number of passengers. 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
f
uel
t

ank filled to 90% capacity and without optional extras. The figure quoted includes
75 kg to al

low 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. Trailer mode
Tr
ai

ler weights Trailer weight
The tr
ai
l

er weights and drawbar loads ap-
proved are selected in intensive trials accord-
ing to precisely defined criteria. The ap-
proved trailer weights are valid for vehicles in
the EU for maximum speeds of 80 km/h (50
mph) (in certain circumstances up to 100
290

Index
Driving mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Driv in
g pr
ofile . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Driving through water . . . . . . . . . . . . . . . . . . . . . 204
DSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Duplicate keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Dust and pollen filter . . . . . . . . . . . . . . . . . . . . . . 173
Dynamic lights range control . . . . . . . . . . . . . . . . 146
E E10 see Ethanol (fuel) . . . . . . . . . . . . . . . . . . . . . . . 266
Easy Connect . . . . . . . . . . . . . . . . . . . . . . . . 33, 120
Efficiency program additional consumers . . . . . . . . . . . . . . . . . . . . 43
saving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Electrical accessories see Power socket . . . . . . . . . . . . . . . . . . . . . . . 159
Electrical socket trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Electric windows . . . . . . . . . . . . . . . . . . . . . . 18, 136 convenience opening and closing . . . . . . . . . 137
Electromechanical steering . . . . . . . . . . . . . . . . . 198 lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Electronic differential lock control . . . . . . . . . . . 187
Electronic immobiliser . . . . . . . . . . . . . . . . . . . . . . 15
Electronic parking brake . . . . . . . . . . . . . . . . . . . 183
Electronic self-locking . . . . . . . . . . . . . . . . . . . . . 187
Electronic Stability Control (ESC) . . . . . . . . . . . . 187
Electronic torque management (XDS) . . . . . . . . . 187
Emergencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 anti-puncture kit . . . . . . . . . . . . . . . . . . . . . . . . . 95
automatic gearbox emergency program . . . . . 197
bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . 66
emergency towing of the vehicle . . . . . . . . . . . . 69
fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
hazard warning lights . . . . . . . . . . . . . . . . . . . 145 jump leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
manual u
nlocking and locking . . . . . . . . . . . . . 97
puncture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
replacing a blown fuse . . . . . . . . . . . . . . . . . . . . 63
replacing the battery . . . . . . . . . . . . . . . . . . . . 278
vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . 228 switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Emergency braking assistance system indications on the display . . . . . . . . . . . . . . . . 210
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
switching off temporarily . . . . . . . . . . . . . . . . . 213
system limitations . . . . . . . . . . . . . . . . . . . . . . 214
Emergency braking function . . . . . . . . . . . . . . . . 184
Emergency braking warning . . . . . . . . . . . . . . . . 145
Emergency operation front passenger door . . . . . . . . . . . . . . . . . . . . . 16
selector lever . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Emission control system catalytic converter . . . . . . . . . . . . . . . . . . . . . . 203
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
diesel particulate filter . . . . . . . . . . . . . . . . . . . 203
Emissions data . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Engine assisted starting . . . . . . . . . . . . . . . . . . . . . . . . . 70
noises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
running in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Start-Stop system . . . . . . . . . . . . . . . . . . . . . . . 205
starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
starting up (driver messages with the mechan- ical contact) . . . . . . . . . . . . . . . . . . . . . . . . . . 178
switching off (key) . . . . . . . . . . . . . . . . . . . . . . 179 Engine and ignition
automatic ignition switch-off . . . . . . . . . . . . . . 180
My Beat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
preheating the engine . . . . . . . . . . . . . . . . . . . 181
starting the engine . . . . . . . . . . . . . . . . . . . . . . 181
starting the engine with Press & Drive . . . . . . 181
stopping the engine . . . . . . . . . . . . . . . . . . . . . 182
Engine compartment . . . . . . . . . . . . . . . . . . 17, 270 battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61, 277
brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 61, 275
closing the bonnet . . . . . . . . . . . . . . . . . . . . . . 271
coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 60, 274
engine oil . . . . . . . . . . . . . . . . . . . . . 59, 272, 273
opening the bonnet . . . . . . . . . . . . . . . . . . . . . 271
safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
windscreen washer reservoir . . . . . . . . . . 61, 276
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 G 12 plus-plus . . . . . . . . . . . . . . . . . . . . . . . . . . 60
G 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Engine data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Engine fault control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Engine management . . . . . . . . . . . . . . . . . . . . . . 202 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 59, 272 changing . . . . . . . . . . . . . . . . . . . . . . . . . 272, 274
checking oil level . . . . . . . . . . . . . . . . . . . . . . . 273
consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
inspection service . . . . . . . . . . . . . . . . . . . . . . 272
maintenance intervals . . . . . . . . . . . . . . . . . . . 272
oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
specifications . . . . . . . . . . . . . . . . . . . . . . 60, 272
temperature display . . . . . . . . . . . . . . . . . . . . . . 43
topping up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
318

Index
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30, 140 audib l
e s
ignals . . . . . . . . . . . . . . . . . . . . . . . . . 140
AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 103
coming home . . . . . . . . . . . . . . . . . . . . . . . . . . 143
cornering lights . . . . . . . . . . . . . . . . . . . . . . . . 143
daytime running lights . . . . . . . . . . . . . . . . . . . 140
dipped beam headlight . . . . . . . . . . . . . . . . . . 140
fog light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
hazard warning lights . . . . . . . . . . . . . . . . . . . . 31
interior lights . . . . . . . . . . . . . . . . . . . . . . . . . . 147
leaving home . . . . . . . . . . . . . . . . . . . . . . . . . . 144
light control . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
lighting of instruments . . . . . . . . . . . . . . . . . . 147
lighting of the controls . . . . . . . . . . . . . . . . . . . 147
lights range control . . . . . . . . . . . . . . . . . . . . . 146
main beam lever . . . . . . . . . . . . . . . . . . . . . . . . 141
main beam lights . . . . . . . . . . . . . . . . . . . . . . . 140
main beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
motorway light . . . . . . . . . . . . . . . . . . . . . . . . . 146
parking lights . . . . . . . . . . . . . . . . . . . . . . . . . . 145
reading lights . . . . . . . . . . . . . . . . . . . . . . . . . . 147
side lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . 141
Lights range control . . . . . . . . . . . . . . . . . . . . . . . 146
Load compartment in the luggage compartment see Loading the luggage compartment . . . . . 160
Loading the luggage compartment . . . . . . . . . . . 160
Loading the vehicle fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . 167
luggage compartment . . . . . . . . . . . . . . . . . . . . 16
roof carrier system . . . . . . . . . . . . . . . . . . . . . . 172
tailboard for transporting long items . . . . . . . 166
Locking and unlocking in the door cylinder . . . . . . . . . . . . . . . . . . . . . . 15
with Keyless Access . . . . . . . . . . . . . . . . . . . . . 129 Locking the front passenger door manually . . . . . 16
Lugg
age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Luggage compartment . . . . . . . . . . . . . . . . . . . . . . 16 automatic locking . . . . . . . . . . . . . . . . . . . . . . . 135
luggage compartment lighting . . . . . . . . . . . . 147
luggage compartment variable floor . . . 169, 170
manual release mechanism . . . . . . . . . . . . . . . . 17
net bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
net partition . . . . . . . . . . . . . . . . . . . . . . 164, 165
retractable rear shelf . . . . . . . . . . . . . . . . . . . . 162
shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
storing the rear shelf . . . . . . . . . . . . . . . 163, 164
see also Loading the luggage compartment . 160
Luggage compartment floor . . . . . . . . . . . 169, 170
Luggage compartment variable floor . . . . 169, 170
Luggage net luggage compartment . . . . . . . . . . . . . . . . . . . 168
Lumbar support . . . . . . . . . . . . . . . . . . . . . . . . . . 152
M Main beam assist . . . . . . . . . . . . . . . . . . . . . . . . . 142
Main beam lever . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Main panel turn signal and main beam lever . . . . . . . . . . . 141
Maintenance intervals . . . . . . . . . . . . . . . . . . . . . 272
Malfunction adaptive cruise control . . . . . . . . . . . . . . . . . . . 215
catalytic converter . . . . . . . . . . . . . . . . . . . . . . 203
clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
diesel particulate filter . . . . . . . . . . . . . . . . . . . 203
emergency braking assistance system (FrontAssist) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Manual air conditioning . . . . . . . . . . . . . . . . . . . . 54
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Manual release mechanism rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Manual unlocking and locking . . . . . . . . . . . . . . . 97
MFD
see
Driver information system . . . . . . . . . . . . . . 36
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Mobile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Mobile telephones . . . . . . . . . . . . . . . . . . . . . . . . 256
Moving off hill driving assistant . . . . . . . . . . . . . . . . . . . . . 190
Multi-collision Brake . . . . . . . . . . . . . . . . . . . . . . 188
Multi-function display (MFD) . . . . . . . . . . . . . . . . . 36
Multimedia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
My Beat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
N
Natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268 fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
fuel tank cap . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
LNG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . 265, 268
smell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
special features . . . . . . . . . . . . . . . . . . . . . . . . 266
Natural leather cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Navigation system CD-ROM player . . . . . . . . . . . . . . . . . . . . . . . . . 158
Net bag luggage compartment . . . . . . . . . . . . . . . . . . . 168
Net partition . . . . . . . . . . . . . . . . . . . . . . . . 164, 165
Noises adaptive cruise control . . . . . . . . . . . . . . . . . . . 215
brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . 184
refuelling natural gas . . . . . . . . . . . . . . . . . . . . 266
tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68, 279
Number of seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
321