fuel type Seat Leon 2020 Owner's manual

Table of Contents
Operating mode selection . . . . . . . . . . . . . . . . . . 226
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Automatic gearbox/DSG automatic gear-
bo x* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
229
Gear
-change recommendation . . . . . . . . . . . . 235
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
SEAT Drive Profiles* . . . . . . . . . . . . . . . . . . . . . . . . 236
Driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Driver assistance systems . . . . . . . . . . . . . . . . 241
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Drive assist sensors and cameras . . . . . . . . . . 242
Cruise control system (CCS) . . . . . . . . . . . . . . . 245
Speed limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Emergency brake assistance system (Front
Assist)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
ACC - Adaptive Cruise Control* . . . . . . . . . . . 253
Proactive speed adjustment . . . . . . . . . . . . . . . . 259
Lane Assist* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Driving Assist (Travel Assist) . . . . . . . . . . . . . . . . . 263
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Lane departure warning (Side Assist) with
rear cr
oss traffic alert (RCTA) and door
opening warning (Exit Assist)* . . . . . . . . . . . . . . 267
Braking and parking . . . . . . . . . . . . . . . . . . . . . . . 273
Braking system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Stabilisation and brake assistance sys-
tems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Help with parking and manoeuvring . . . . . 282
Assisted parking system (Park Assist)* . . . . . . 282
Parking aid parking and manoeuvring
(ParkPil
ot) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Parking System Plus* . . . . . . . . . . . . . . . . . . . . . . . 291 Rear parking aid* . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Reverse Assist (Rear View Camera)* . . . . . . . 295
Towing bracket device* . . . . . . . . . . . . . . . . . . . 298
Trailer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Electrically unlocking trailer hook* . . . . . . . . . 304
Retrofitting a towing bracket . . . . . . . . . . . . . . . 306
Practical tips . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
High-voltage battery . . . . . . . . . . . . . . . . . . . . . 308
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . 308
Conservation of the high-voltage bat-
tery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Char

ging settings in the infotainment sys-
tem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
1
Charging the high-voltage battery . . . . . . . . . 312
Charging cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Checking and refilling levels . . . . . . . . . . . . . 320
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Fuel types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
AdBlue® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Engine management and emissions control
system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Engine compartment . . . . . . . . . . . . . . . . . . . . . . . 328
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Cooling syst

em . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Windscreen washer reservoir . . . . . . . . . . . . . . . 337
12-volt battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
48-volt battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Energy management . . . . . . . . . . . . . . . . . . . . . . . 344
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Tyre pressure monitor system . . . . . . . . . . . . . . . 352
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
SEAT Maintenance Programme . . . . . . . . . .
356
Service intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Additional service offers . . . . . . . . . . . . . . . . . . . . 358
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
Vehicle maintenance . . . . . . . . . . . . . . . . . . . . . 360
Maintenance and cleaning . . . . . . . . . . . . . . . . . 360
Accessories and modifications to the ve-
hicle
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Accessories, spare parts and repair work . . . 365
Information for the user . . . . . . . . . . . . . . 367
Information for the user . . . . . . . . . . . . . . . . . . . 367
Information stored by the control units . . . . . . 367
Other important information . . . . . . . . . . . . . . . . 367
Information about the EU Directive
2014/53/EU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . 372
Indications about the technical data . . . . 372
Important information . . . . . . . . . . . . . . . . . . . . . . 372
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
6

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

Wheels
design of summer tyres (width, rubber com-
pound, tr ead patt
ern) gives less grip on ice
and snow. This applies particularly to vehicles
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 documents
(e.g. EC Certificate of Conformity or COC 1)
).
The vehicle documentation varies depending
on the country of residence.
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.
A code letter indicating the speed limit is
stamped on all winter tyres ››› page 346
.
Vehicles capable of exceeding these speeds
must have an appropriate sticker attached
so that it is visible to the driver. Suitable stick-
ers are available from the SEAT Official Serv-
ice 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 not
e that the generally applicable
240 km/h (149 mph) speed for winter tyres
with the letter V is subject to technical re-
strictions; the maximum permissible speed
for your vehicle may be significantly lower.
The maximum speed limit for these tyres de-
pends 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
f or the wint

er tyres fitted on your car can
cause tyre failure, resulting in a loss of con-
trol of the vehicle – risk of accident. For the sake of the environment
When winter is over, change back to sum-
mer t yr

es at an appropriate moment. In
temperatures above +7°C (+45°F), perform-
ance will be improved if summer tyres are
used. Fuel consumption, wear and noises
while driving will all be reduced. Snow chains
Snow chains must only be fitted t
o the fr
ont
wheels, even on vehicles with four-wheel
drive.