catalytic converter Seat Leon 2020 Owner's manual

Start and driving
For the sake of the environment
If the engine is run in gently, the life of the
engine will be incr eased and the engine oil
consumption r
educed.Economical and environmentally
friendly driving
Fuel consumption, environmental pollution
and w
ear t

o the engine, brakes and tyres all
depend largely on driving style. Consumption
can be reduced between 10-15% with an effi-
cient driving type. The following section gives
you some tips on lessening the impact on the
environment and reducing your operating
costs at the same time.
Active cylinder management (ACT®)*
Depending on vehicle equipment, the active
cylinder management (ACT®) may deacti-
vate some of the engine cylinders if the driv-
ing situation does not require too much pow-
er. The number of active cylinders can be
seen on the instrument panel display.
››› page 72.
Foresight when driving
If you think ahead when driving, you will need
to brake less and thus accelerate less. Take
advantage of the inertia of the vehicle when-
ever possible, with a gear engaged. This takes advantage of the engine braking effect,
r
educing w

ear on the brakes and tyres. Emis-
sions and fuel consumption will drop to zero.
Changing gear to save energy
An effective way of saving is to change in ad-
vance to a higher gear.
Manual transmission: shift up from first to
second gear as soon as possible. Choosing
the right gear enables fuel savings. Select the
highest possible gear appropriate for the
driving situation (the engine should continue
functioning with cyclical regularity).
Automatic transmission: accelerate gradu-
ally and without reaching the “kick-down”
position.
Avoid driving at high speed
Avoid travelling at your vehicle’s top speed,
whenever possible. Fuel consumption, emis-
sion of harmful gases and noise pollution
multiply 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 example, 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 alr
eady
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 during
this initial warm-up phase. It is therefore best
to drive off immediately after starting the en-
gine. 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.
A cold engine consumes a disproportionate
amount of fuel. The engine reaches its work-
ing temperature after about four kilometres
(2.5 miles), when fuel consumption will return
to a normal level. »
239

Checking and refilling levels

Flashes
Fault in the diesel engine management.
Hav e the engine check
ed as soon as possible by a
specialised workshop. Note
While the control lamps , ;,  or  are
on, ther
e might be faults in the engine, fuel
consumption may go up and the engine
might lose power. Catalytic converter
To maintain the useful life of the catalytic
conv
er

ter

Index
Braking system warning l
amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
C Camera cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Care see Cleaning the vehicle . . . . . . . . . . . . . . . . . 360
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . 327
Central armrests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 anti-theft alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
central locking switch . . . . . . . . . . . . . . . . . . . . . 103
emergency lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
remote control key . . . . . . . . . . . . . . . . . . . . . . . . 102
selective unlocking system . . . . . . . . . . . . . . . . 102
settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
unlock and lock the vehicle (Keyless Ac- cess) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Cetane index (diesel fuel) . . . . . . . . . . . . . . . . . . . 324
Change a bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Change the wiper blades . . . . . . . . . . . . . . . . . . . . 53
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
subsequent work . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
wheel nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Changing parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Charging cable for charging stations (AC) . . . . . . . . . . . . . . . . . 318
for sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Charging socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Charging the high-voltage battery charging cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
charging modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
charging process display . . . . . . . . . . . . . . . . . . 315
charging socket . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 emergency unlocking . . . . . . . . . . . . . . . . . . . . . 316
progr
ammed charging . . . . . . . . . . . . . . . . . . . . . 311
settings in the infotainment system . . . . . . . . . 311
troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
Checking levels engine compartment . . . . . . . . . . . . . . . . . . . . . . 331
Check lists requirements for Android Auto™ . . . . . . . . . . . . 191
requirements for Apple CarPlay . . . . . . . . . . . 190
requirements for MirrorLink® . . . . . . . . . . . . . . . 192
reverse assist (Rear View) . . . . . . . . . . . . . . . . . 296
Childproof locks electric windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Child seats group classification . . . . . . . . . . . . . . . . . . . . . . . . 34
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 35
securing with the seat belt . . . . . . . . . . . . . . . . . 42
Top Tether system . . . . . . . . . . . . . . . . . . . 38, 40, 41
Cleaning the vehicle high pressure cleaning equipment . . . . . . . . 360
special care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
vehicle exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
vehicle interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
wash the vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Climate control auxiliary heating . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Clocks set the time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
panoramic roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Clutch (lamp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 Coming Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
124
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 WLAN access point . . . . . . . . . . . . . . . . . . . . . . . . 193
Connectivit
y Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Connectors faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Control and warning lamps . . . . . . . . . . . . . . . . . . 89 adaptive cruise control . . . . . . . . . . . . . . . . . . . 254
adBlue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
anti-lock brake system ABS . . . . . . . . . . . . . . . 278
audible warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
braking system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
cruise control (GRA) . . . . . . . . . . . . . . . . . . . . . . . 245
diesel preheating system . . . . . . . . . . . . . . . . . 326
EDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
electric drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
electromechanical steering . . . . . . . . . . . . . . . 236
electronic parking brake . . . . . . . . . . . . . . . . . . 273
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . 266
emissions control . . . . . . . . . . . . . . . . . . . . . . . . . 326
engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
engine management . . . . . . . . . . . . . . . . . . . . . . 326
engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278, 281
fuel reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
gear change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Lane Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
lane departure warning (Side Assist) . . . . . . 268
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
particulate filter . . . . . . . . . . . . . . . . . . . . . . 326, 327
press on the brake . . . . . . . . . . . . . . . . . . . . . . . . 253
383

Index
Electronic parking brake . . . . . . . . . . . . . . . . . . . . . 275 aut omatic connection . . . . . . . . . . . . . . . . . . . . .
276
automatic disconnection . . . . . . . . . . . . . . . . . . 276
connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
emergency brake function . . . . . . . . . . . . . . . . 276
lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Electronic self-locking . . . . . . . . . . . . . . . . . . . . . . . 279
Electronic Stability Control (ESC) . . . . . . . . . . . 279
Emergencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 anti-puncture kit . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . . 48
changing the battery . . . . . . . . . . . . . . . . . . . . . . 341
emergency vehicle towing . . . . . . . . . . . . . . . . . . 57
hazard warning lights . . . . . . . . . . . . . . . . . . . . . . 125
jump leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
replace a blown fuse . . . . . . . . . . . . . . . . . . . . . . . 62
vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 connecting and disconnecting . . . . . . . . . . . . 266
troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
see also Emergency Assist . . . . . . . . . . . . . . . . 265
Emergency brake function . . . . . . . . . . . . . . . . . . 276
Emergency braking assist system . . . . . . . . . . . 242 activating and deactivating . . . . . . . . . . . . . . . 252
dodge assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
pedestrian and cyclist recognition . . . . . . . . 250
status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
system limitations . . . . . . . . . . . . . . . . . . . . . . . . . 251
temporarily deactivating . . . . . . . . . . . . . . . . . . 253
turn assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Emergency braking warning . . . . . . . . . . . . . . . . . 126
Emergency call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Emergency call service . . . . . . . . . . . . . . . . . . . . . . 44
Emergency l
ocking of the front passenger
door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Emergency opening driver's door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Emergency operation front passenger door . . . . . . . . . . . . . . . . . . . . . . . 111
Emissions control system AdBlue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . 327
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
particulate filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Energy management . . . . . . . . . . . . . . . . . . . . . . . 344
Engine assisted start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
noises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
running in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Start-Stop system . . . . . . . . . . . . . . . . . . . . . . . . . 224
start (driver instructions with the mechani- cal contact) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Engine and ignition automatic ignition disconnection . . . . . . . . . . 218
emergency start . . . . . . . . . . . . . . . . . . . . . . . . . . 222
My Beat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
preheat the engine . . . . . . . . . . . . . . . . . . . . . . . . 220
starting the engine . . . . . . . . . . . . . . . . . . . . . . . . 220
starting the engine with Press & Drive . . . . . 220
switching off the engine . . . . . . . . . . . . . . . . . . . 221
Engine compartment . . . . . . . . . . . . . . . . . . . 328, 331 battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334, 336
engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
opening and closing . . . . . . . . . . . . . . . . . . . . . . 329 safety instructions . . . . . . . . . . . . . . . . . . . . . . . . 328
window w
asher tank . . . . . . . . . . . . . . . . . . . . . . 337
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 check the level . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
G12evo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
G12 plus-plus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
G13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
temperature indicator . . . . . . . . . . . . . . . . . . . . . . 84
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Engine failure control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Engine management . . . . . . . . . . . . . . . . . . . . . . . . 326
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Engine oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331, 334
checking the oil level . . . . . . . . . . . . . . . . . . . . . . 333
consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
inspection service . . . . . . . . . . . . . . . . . . . . . . . . . 331
maintenance frequencies . . . . . . . . . . . . . . . . . 331
refill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Engine oil pressure control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Engine specifications . . . . . . . . . . . . . . . . . . . . . . . . 374
Environment ecological driving . . . . . . . . . . . . . . . . . . . . . . . . . 239
environmental compatibility . . . . . . . . . . . . . . 367
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Environmental tip refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
385