2014 Seat Leon SC open gas tank

Advice
least 30 seconds before starting the engine.
When you then start the engine it may take
longer than normal (up to one minute) to
start firing. This is because air needs to be
bled from the fuel system while starting.
For the sake of the environment
Do not overfill the fuel tank, it may cause the
fuel to overflow if it becomes warm. Note
Diesel vehicles are fitted with a protective de-
vice that prevents the insertion of the wrong
fuel hose 1)
. It is only possible to refuel with
Diesel nozzles.
● If the pump nozzle is worn, damaged, or if
it is very small, it is possible that it will not
be able to open the protective device. Before
trying to insert the pump nozzle by turning it,
try a different pump or request specialist
help.
● If you fill the tank from a reserve fuel canis-
ter, the protective device will not open. One
way to resolve this is to pour the fuel in very
slowly. Refuelling with natural gas
Fig. 173
Tank flap open: gas filler mouth 1 ,
filler mouth retainer 2 Before refuelling, the engine and the igni-
tion, mobile telephone and heating must be
switched off separately
››› .
Read the instructions on how to use the natu-
ral gas pump carefully.
The vehicle is not prepared for refuelling with
liquefied natural gas (LNG) ››› . Before refu-
elling with natural gas, make sure you add
the appropriate type of fuel ››› page 195.
Opening the fuel tank cap
The natural gas filler mouth is behind the fuel
tank cap, next to the petrol filler mouth. ●
Unlock the vehicle with the key or with the
central locking button  situated on the driv-
er door ››› page 82 .
● Pr e
ss on the rear area of the flap and open
it.
Refuelling
Things to note: if the ambient temperature is
very high, the natural gas pump protection
against overheating disconnects this auto-
matically.
● Remove the plug from the gas filler mouth
››› Fig. 173 1 .
● Connect the pump filling nozzle to the gas
filler mouth.
● The fuel tank will be full when the pump
c ompr

essor automatically cuts the supply.
● If you wish to finish refuelling in advance,
press the button on the pump to stop the
flow.
Closing the fuel tank cap
● Check that the gas filler mouth retainer 2 is not trapped with the filler nozzle. If neces-
sary, place it in the filler mouth again.
●
Insert the plug in the filler mouth.
● Close the tank flap. Make sure you hear it
click into place. 1)
Depending on country
194

Checking and refilling levels
Liquefied natural gas (LNG) is the result of
heavy cooling of natural gas. Therefore its
volume is considerably reduced compared
with compressed natural gas (CNG). In vehi-
cles with a natural gas engine, liquefied nat-
ural gas cannot be directly refilled, as the gas
would expand excessively in the vehicle gas
tank.
Therefore, vehicles with a natural gas engine
must only be refuelled using compressed
natural gas ››› .
Natural gas quality and consumption
Natural gas is divided into the groups H and
L depending on its quality.
Gas type H has a superior heating power and
inferior nitrogen and carbon dioxide content
than type L. The higher the heating power of
the natural gas, the lower the consumption
will be.
However, the heating power and the propor-
tion of nitrogen and carbon dioxide can fluc-
tuate within the quality groups. Therefore, ve-
hicle consumption can also vary when using
a single type of gas only.
The engine management automatically
adapts to the natural gas used according to
its quality. Therefore, different quality gases
can be mixed in the tank, without the need
for comprehensive draining before applying a
different quality gas. Updated information relating to natural gas
quality is displayed on the instrument panel
››› page 72 .
Nat ur
al gas and safety
If you can smell gas or suspect that there is a
leak ››› :
● Stop the vehicle immediately.
● Switch the ignition off.
● Open the doors to appropriately ventilate
the vehicle.
● Extinguish cigarettes immediately.
● Move away from the vehicle or switch off
objects that may cause sparks or a fire.
● If you continue to smell gas, do not contin-
ue driving!
● Seek specialist assistance. Have the fault
repaired. WARNING
Failure to act when you can smell gas in the
vehicle or when refuelling can cause serious
injuries.
● Carry out the necessary operations.
● Leave the danger zone.
● If necessary, warn the emergency services. WARNING
The vehicle is not prepared to use liquefied
natural gas (LNG) and this fuel must not be
added under any circumstances. Liquefied
natural gas can cause the natural gas tank to
explode, resulting in serious injury. Note
Have the natural gas system checked regular-
ly by a specialised workshop, according to
the Maintenance Programme. 197
Technical specifications
Advice
Operation
Safety
The essentials

Index
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 G 12 plus-plus . . . . . . . . . . . . . . . . . . . . . . . . . 203
G 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Engine fault control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Engine management control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Checking oil level . . . . . . . . . . . . . . . . . . . . . . . 201
Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Engine oil dipstick . . . . . . . . . . . . . . . . . . . . . . 201
Inspection service . . . . . . . . . . . . . . . . . . . . . . 200
Longlife inspection service . . . . . . . . . . . . . . . 200
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Replace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Service intervals . . . . . . . . . . . . . . . . . . . . . . . . 200
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Temperature display . . . . . . . . . . . . . . . . . . . . . . 77
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Environment Ecological driving . . . . . . . . . . . . . . . . . . . . . . . 142
Environmental friendliness . . . . . . . . . . . . . . . 140
Environmental tip Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Environmental tips Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . 194
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Environment warning . . . . . . . . . . . . . . . . . . . . . . 174
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
ESC Electronic stability control . . . . . . . . . . . . . . . . 143
Multi-collision brake . . . . . . . . . . . . . . . . . . . . . 144
Sport Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Ethanol (fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Exhaust gas filtration system
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 141
Exhaust tail pipe: Cleaning . . . . . . . . . . . . . . . . . 186
Extending the luggage compartment . . . . . . . . . . . . . . . . 109
Exterior lighting Changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 233
Exterior mirrors adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Exterior view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
F Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Fault in the gearbox (warning lamp) . . . . . . . . . . 139
Faults Panoramic sliding sunroof . . . . . . . . . . . . . . . . . 93
Faults in the gearbox (warning lamps) . . . . . . . . 139
Faulty bulbs Changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 233
Filling the fuel tank . . . . . . . . . . . . . . . . . . . . . . . 193
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Fog light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Folding down the back seats . . . . . . . . . . . . . . . . 109
Folding table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Four wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Front armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Front Assist City Emergency braking function . . . . . . . . . . . 165
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
on-screen messages . . . . . . . . . . . . . . . . . . . . 162
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
switching off temporarily . . . . . . . . . . . . . . . . . 164
system limitations . . . . . . . . . . . . . . . . . . . . . . 164
see also Front Assist Monitoring system . . . . . 161 Fr
ont Assist monitoring system
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
on-screen messages . . . . . . . . . . . . . . . . . . . . 162
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Front Assist Monitoring system . . . . . . . . . . . . . . 161 City Emergency braking function . . . . . . . . . . . 165
radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Front Assist Monitoring System switching off temporarily . . . . . . . . . . . . . . . . . 164
system limitations . . . . . . . . . . . . . . . . . . . . . . 164
Front head restraints . . . . . . . . . . . . . . . . . . . . . . . 41
Front headrests . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Front passenger front airbag Deactivating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Front seats Manually adjusting . . . . . . . . . . . . . . . . . . . . . . . 12
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31, 195 Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 241
diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Fuel consumption . . . . . . . . . . . . . . . . . . . . . . . . . 242
Fuel tank cap Opening and closing . . . . . . . . . . . . . . . . . . . . . 31
Fuel tank flap Opening and closing . . . . . . . . . . . . . . . . . . . . . 31
Full-LED headlights . . . . . . . . . . . . . . . . . . . . . . . 233
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33, 231 Fuse box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Identifying blown fuses . . . . . . . . . . . . . . . . . . 233
Identifying by colours . . . . . . . . . . . . . . . . . . . . 232
Preparation before replacing . . . . . . . . . . . . . . 233
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
272

Index
O Octane rating (petrol) . . . . . . . . . . . . . . . . . . . . . . 195
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
One-touch opening and closing Electric windows . . . . . . . . . . . . . . . . . . . . . . . . . 92
Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Panoramic sunroof . . . . . . . . . . . . . . . . . . . . . . . 92
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Open/Close By remote control . . . . . . . . . . . . . . . . . . . . . . . . 84
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Fuel tank flap . . . . . . . . . . . . . . . . . . . . . 193, 194
Panoramic sliding sunroof . . . . . . . . . . . . . . . . . 92
Panoramic sunroof . . . . . . . . . . . . . . . . . . . . . . . 92
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Opening/Closing By remote control . . . . . . . . . . . . . . . . . . . . . . . . 84
In the lock cylinder . . . . . . . . . . . . . . . . . . . . . . 227
With the central locking switch . . . . . . . . . . . . . 85
Opening and closing . . . . . . . . . . . . . . . . . . . . . . . . 9
Outside temperature . . . . . . . . . . . . . . . . . . . . . . . 74
Outside temperature display . . . . . . . . . . . . . . . . . 72
Overview (controls and displays) . . . . . . . . . . . . . 65
P Paint code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Paint damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Panoramic sliding sunroof . . . . . . . . . . . . . . . . . . . 92 Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Convenience closing . . . . . . . . . . . . . . . . . . . . . 93
Convenience opening . . . . . . . . . . . . . . . . . . . . . 93 Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131, 136
Parking aid Adjusting the display/audible warnings . . . . . 176
Environment warning . . . . . . . . . . . . . . . . . . . . 174
Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Parking system plus . . . . . . . . . . . . . . . . . . . . . 174
Rear parking aid . . . . . . . . . . . . . . . . . . . . . . . . 174
Sensors/Camera: cleaning . . . . . . . . . . . . . . . 185
Towing bracket . . . . . . . . . . . . . . . . . . . . . . . . . 177
Parking aid system see Parking aid . . . . . . . . . . . . . . . . . . . . . . . . . 174
P ark
ing light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Parking (automatic gearbox) . . . . . . . . . . . . . . . . 136
Particulate filter (diesel) . . . . . . . . . . . . . . . . . . . 141
Passenger see
Correct sitting position . . . . . . . . . 38, 39, 40
Passenger door manual locking . . . . . . . . . . . . . 228
Passenger seat backrest folding down . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Plastic parts: Cleaning . . . . . . . . . . . . . . . . 185, 187
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Power Management . . . . . . . . . . . . . . . . . . . . . . . 191
Power socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Pre-heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Progressive steering . . . . . . . . . . . . . . . . . . . . . . 190
Puncture Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Puncture repair . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
R Racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Radar sensor . . . . . . . . . . . . . . . . . . . . . . . . 153, 163 Radio-operated remote control
see
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Radio display: cleaning . . . . . . . . . . . . . . . . . . . . 187
Rain sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Control of function . . . . . . . . . . . . . . . . . . . . . . 104
Raising the vehicle . . . . . . . . . . . . . . . . . . . . . . . . 219
Rear head restraints . . . . . . . . . . . . . . . . . . . . . . . . 41
Rear headrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . 9, 228, 229 Manual release . . . . . . . . . . . . . . . . . . . . . . . . . 229
see also
Luggage compartment . . . . . . . . . 89, 90
Rear lights Changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 233
Rear seat backrest folding down . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
folding down and lifting the backrest . . . . . . . 110
lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Rear view mirror Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Rear view mirrors adjusting the exterior mirrors . . . . . . . . . . . . . 104
Rear vision mirror . . . . . . . . . . . . . . . . . . . . . . . . . 104
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Opening the fuel tank flap . . . . . . . . . . . . . . . . 193
Remote control key Unlock/Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Remove the wheel cover . . . . . . . . . . . . . . . . . . . 217
Removing/installing head restraints . . . . . . . . . 107
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Replacement parts . . . . . . . . . . . . . . . . . . . . . . . . 182
Reset button (trip recorder) . . . . . . . . . . . . . . . . . . 69
Reset the trip recorder to zero . . . . . . . . . . . . . . . . 69
Retaining hooks . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Retractable rear shelf . . . . . . . . . . . . . . . . . . . . . . 115
Retrofitting a towing bracket . . . . . . . . . . . . . . . . 180
275