battery 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

Self-help
Jump start: description Fig. 49
Diagram of connections for vehicles
without St art
-Stop system. Fig. 50
Diagram of connections for vehicles
with St art

-Stop system. Jump lead terminal connections
Swit

ch off the ignition of both vehicles
››› .
1. Connect one end of the r
ed

jump lead to
the positive + terminal of the vehicle
with the fl at batt
ery A
› ›
› Fig. 49
.
Connect the other end of the red jump
lead to the positive terminal + in the ve-
hicl e pr

oviding assistance B .
In v ehicl
es without a Start-Stop system:
connect one end of the black jump lead
to the negative terminal – of the vehicle
pr o

viding the current B
› ›
› Fig. 49
.
In vehicles with a Start-stop system:
connect one end of the black jump lead X to a suitable ground terminal, to a sol-
id piece of met al in the engine bl

ock, or
to the engine block itself ››› Fig. 50
.
Connect the other end of the black jump
lead X to a solid metal component bol-
t ed t

o the engine block or to the engine
block itself of the vehicle with the flat
battery. Do not connect it to a point near
the battery A .
P osition the l

eads in such a way that
they cannot come into contact with any
moving parts in the engine compart-
ment.
Starting Start the engine of the vehicle with the
boosting battery and let it run at idling
speed.
2.
3.
4a.
4b.
5.
6.
7.
Start the engine of the vehicle with the
flat batt

ery and wait for 2 or 3 minutes
until the engine is running.
Removing the jump leads Before you remove the jump leads,
switch off the dipped beam headlights if
they are switched on.
Turn on the heater blower and heated
rear window in the vehicle with the flat
battery. This helps minimise voltage
peaks which are generated when the
leads are disconnected.
When the engine is running, disconnect
the leads in reverse order to the details
given above.
Make sure the battery clamps have sufficient
metal-to-metal contact with the battery ter-
minals.
If the engine fails to start after about 10 sec-
onds, switch off the starter and try again after
about 1 minute. WARNING

Operation
Instruments and warn-
ing/contr ol l
amps
Instrument panel Introduction The vehicle can be fitted with a instrument
panel digit
al l

ap timer or one Digital (SEAT
Cockpit).
After switching the engine on with a 12-volt
battery that is heavily discharged or newly
changed some system settings (such as the
time, the date, the personalised comfort set-
tings and the programming) might be altered
or deleted. Check and correct these settings
once the battery is sufficiently charged. WARNING
Any distraction may lead to an accident,
with the risk of injury.

Instruments and warning/control lamps
Power meter  V
alid for: hybrid vehicles Fig. 65
Digital instrument panel: Power meter The lower left hand side of the rev counter
has tw
o col
our coded areas:
Charge: Charging zone. Indicates the
amount of charge generated and the
maximum charge.
Power %: Electric traction zone. Indi-
cates the percentage of power used and
the maximum amount of power currently
available.
The power meter shows the usage level of
the electric drive. The power meter bar shows
the current usage level. Green
Blue A finer coloured border indicates how much
the propul

sion can currently be used. De-
pending on the selected driving program and
the current availability of electrical power,
the boundaries of the different colours can
vary.
The following displays can be seen on the
Power meter:
››› Fig. 65
The vehicle recovers electrical energy
Electric drive switched on / Boost (the ve-
hicle runs for a short time at the maximum
power of the electric motor and combus-
tion engine).
The combustion engine must be running.
Battery level indicator  V
alid f
or: hybrid vehicles Fig. 66
Digital instrument panel: battery level
indicat or

. A
B
C The small arrow next to the charging station
symbol indicat
es which side of the v

ehicle the
charging cover is on. Note

Operation
Opening and closing Set of v ehicl
e keys
Vehicle key Fig. 80
Vehicle key Fig. 81
Centre console: vehicle key socket. Key to the
››

› Fig. 80
Unlock the vehicle
1 Lock the vehicle
Unl
ock only the r

ear lid. Press the button
until all the turn signals on the vehicle
flash briefly. You have 2 minutes to open
the rear lid. Once this time has passed, it
will lock again. In addition, the lamp on
the key flashes.
Control lamp
Alarm button*. Only press in the event of
an emergency! When the alarm button is
pressed, the vehicle's sounds and the turn
signals light up for a short time. Press
again to disconnect.
With the vehicle key the vehicle may be
locked or unlocked remotely ››› page 101
.
The vehicle key includes an emitter and bat-
tery. The receiver is in the interior of the vehi-
cle. The range of the vehicle key with remote
control and new battery is several metres
around the vehicle.
If it is not possible to open or close the vehicle
using the remote control key, this should be
re-synchronised ››› page 100
or the battery
changed ››› page 100
.
Different keys belonging to the vehicle may
be used.
Control lamp on the vehicle key
When a button on the vehicle key is briefly
pressed, the indicator lamp flashes 4 ›››
Fig. 80 once briefly, but if the butt
on is
2 3
4
5 held down for a longer period it will flash sev-
er
al times, such as f
or convenience opening.
If the vehicle key control lamp does not light
up when the button is pressed, replace the
key's battery ››› page 100
.
Key socket*
Depending on the version there is a socket for
the key close to the start button ››› Fig. 81
.
Warning! Do not confuse with the location for
the emergency start ››› page 222
.
Spare key
To obtain a spare key and other vehicle keys,
the vehicle ID number is required.
Each new key contains a microchip which
must be coded with the data from the vehicle
electronic immobiliser. A vehicle key will not
work if it does not contain a microchip or the
microchip has not been encoded. This is also
true for keys which are specially cut for the
vehicle.
The vehicle keys or new spare keys can be
obtained from a SEAT Official Service, a spe-
cialised workshop or an approved key service
qualified to create this kind of key.
New keys or spare keys must be synchronised
before use ››› page 100
.
98

Operation
To change the battery Fig. 83
Vehicle key: opening the battery com-
partment co v
er. Fig. 84
Vehicle key: removing the battery. SEAT recommends you ask a specialised
w
orkshop t

o replace the battery.
The battery is located to the rear of the vehi-
cle key, under a cover. Changing the battery

Opening and closing
Central locking Intr oduction Central locking functions correctly when all
the doors and the r
ear lid ar
e correctly shut. If
the driver door is open, the vehicle cannot be
locked with the key.
The battery of an unlocked vehicle parked for
a long period (e.g. in a private garage) may
run down and fail to start the motor. WARNING
The incorrect use of the central locking
syst em may cause serious injuries.

Opening and closing
For the automatic raising function: pull the
butt on f
or the corresponding window up-
wards until it reaches the second position.
For the automatic lowering function: push
the button for the corresponding window up-
wards until it reaches the second position.
Stop automatic movement: push or pull on
the button of the corresponding window.
Resetting one-touch opening and closing
The one-touch opening and closing function
is not active after the vehicle battery has
been disconnected or is flat and will have to
be reset.

Lights
With the ignition on and without light activa-
tion, the anal ogue instrument panel lighting
r
emains activated in daytime light conditions.
The lighting is reduced as the exterior light di-
minishes. In some cases, e.g. when driving
through a tunnel without the  function ac-
tive, the instrument panel lighting may even
switch off. The objective of this function is to
provide the driver with a visual indication that
he or she should activate the dipped beam.
If your vehicle is equipped with a digital in-
strument panel (Digital SEAT Cockpit), the
following message will appear Turn on the
lights on the instrument panel.
Interior and reading lights Fig. 104
Detail of roof lining: front lighting of
the passenger compartment. 
Turning the interior lights on or off.

 Door contact connection.
The int
erior lights come on aut

omatically
when you unlock the vehicle, open a door
or disconnect the ignition.
The light goes out a few seconds after
closing all the doors, when locking the ve-
hicle or connecting the ignition. Reading light
The r
eading light is t

actile, each lens is turned
on and off individually by pressing in the re-
spective central area. In addition, the intensi-
ty of the light can be adjusted according to
the pressure exerted.
If you want to turn on the two lenses together
you must press the symbol 
››› Fig. 104
.
Glove compartment and luggage com-
partment lighting*
When opening and closing the glove com-
partment on the front passenger side and the
rear lid, the respective light will automatically
switch on and off.
Footwell lighting*
The lights in the footwell area below the dash
(driver and front passenger sides) will switch
on when the doors are opened and will de- crease in intensity while driving. This intensity
can be adjust
ed thr

ough the infotainment
system menu using the function button  > Interior > Light ››› page 96
. Note
The reading lights go out when the vehicle
is cl osed and l

ocked or after a few minutes
of turning the ignition off. This prevents the
12-volt vehicle battery from discharging. 127

Driving
The engine can only be started using a genu-
ine SEAT k ey with its corr
ect code.Note
A perfect operation of the vehicle is ensur-
ed if genuine SEAT k eys ar

e used.Emergency starting function
Fig. 162
In the centre console: emergency
st art. If no valid key is detected inside the vehicle,
an emer
gency st

art-up will be required. The
relevant message will appear in the dash
panel display. This may happen when, for ex-
ample, the vehicle key battery is very low: