2020 Seat Leon brake

Help with parking and manoeuvring
Visual indication segments Fig. 203
Parking aid view on the Infotainment
syst em displ
ay. The optical indication of the segments works
as f
oll

ows:
Grey segments: the obstacle is more
than approx. 30 cm away from the path
or in the direction opposite to travel.
They are also displayed when the elec-
tronic parking brake is activated.
Yellow segments: the obstacles lie on
the vehicle’s path and are at a distance
of less than approx. 30 cm away.
Red segments: obstacles are less than
approx. 30 cm away.
A wake will indicate the anticipated forward
or backward trajectory, depending on the en-
gaged gear. –
–
– If an obstacle is located in the vehicle’s way,
the corresponding audibl

e warning will
sound.
When the penultimate segment is displayed,
the vehicle has reached the collision zone. In
the collision zone, the obstacles are repre-
sented in red (including those out of the
path). Stop the vehicle! ››› in Introduction
on page 290, ››

› in Introduction on
page 290 !
Setting the indications and audio
signal s The indications and acoustic signals are set
in the Inf
ot

ainment system: function button 
> Driver assistance> Parking aid: Setup
Automatic activa-
tion On/off
Front volume* Volume in the front and rear
area.
R

ear volume* Volume in the rear area.
Adjust volume When the parking aid is
s
wit

ched on, the volume of
the audio source will be re-
duced, depending on the se-
lected option. Error messages
If a an error or fault message appears on the
instrument clust
er in P

ark Assist, there is a
fault.
If the fault doesn't disappear before discon-
necting the ignition, it will not be indicated
next time the parking aid is connected.
If a rear sensor is faulty, only the obstacles in
the areas A and
B are displayed
› ›

› Fig. 202. If a front sensor is faulty, only the
obstacles in the areas C and
D will be dis-
pl ayed. Symbol

Driving
Manoeuvre braking function* The emergency braking function is used to
minimise damage in the e
v
ent of a collision.
Depending on the equipment, if the Parking
Aid is active, the braking while manoeuvring
function activates emergency braking when it
detects an obstacle in the vehicle’s path that
could cause a collision, driving forwards or in
reverse.
The function will not brake if the Parking Aid is
activated automatically. For the system to
operate, manoeuvring speed must be be-
tween 2.5-7 km/h (1.5-4 mph) for the front
area and between 1.5-7 km/h (1-4 mph) for
the rear.
Following an intervention, the braking while
manoeuvring function will be inactive in the
same direction of travel for 5 metres. Once
the gear is changed, or the selector lever’s
position is changed, the function will be ac-
tive again. The Parking Aid’s limitations apply.
The braking while manoeuvring function is set
in the Infotainment system: function button 
> Driver assistance> Parking aid.
Temporary suppression of emergency
braking

Driving
Trailer brakes
If the tr ail
er has its own brake system, please
take the relevant legal requirements into ac-
count. Never connect the trailer's brake sys-
tem to the vehicle's brake system.
Tow cable
Always use a cable between the vehicle and
the trailer ››› page 300
.
Trailer tail lights
The trailer's rear lights should comply with
the statutory safety regulations ››› page 300
.
Never connect the trailer's rear lights directly
to the vehicle's electric system. If you are not
sure that the trailer's electrical connection is
correct, have it checked by a specialised
workshop. SEAT recommends visiting a SEAT
dealership for this.
Exterior mirrors
If you cannot see the area behind the trailer
with the exterior mirrors of the towing vehicle,
additional mirrors will have to be installed in
accordance with the regulations of the coun-
try in question. The exterior mirrors should be
adjusted before you start driving and must
provide a sufficient field of vision at the rear. WARNING
If the towing bracket is wrongly fitted or is
not the right one , the tr

ailer could become detached from the vehicle and cause seri-
ous injury.
CAUTION

Checking and refilling levels
Checking levels Fig. 223
Diagram for the location of the various el-
ements. From time to time, the levels of the different
fluids in the v
ehicl
e must be checked. Never
fill with incorrect fluids, otherwise serious
damage to the engine may be caused.
Coolant expansion tank ››› page 334
Engine oil level dipstick ››› page 333
Engine oil filler cap ››› page 333
Brake fluid reservoir ››› page 337
Battery 1)
››› page 338
1 2
3
4
5 Windscreen washer reservoir
› ›
› page 337 Note
The layout of parts may vary depending on
the engine . 6
Engine oil
Gener al not
es The engine comes with a special, multi-grade
oil that can be used all year r
ound.
Because the use of high-qualit

y oil is essen-
tial for the correct operation of the engine
and its long useful life, when topping up or
changing oil, use only those oils that comply
with VW standards. »1)
In plug-in hybrid vehicles (PHEV) the battery is
in the luggage compartment ››

› page 341
.
331

Checking and refilling levels
Brake fluid Check and r efill the br
ake fluidFig. 229
Engine compartment: brake fluid res-
erv oir cap

. The brake fluid reservoir is located in the en-
gine compartment
››

› page 331
.
Checking the brake fluid level
The brake fluid level must be between the 
and  markings.
However, if the brake fluid level goes down
noticeably in a short time, or drops below the mark, there may be a leak in the brake system. Seek specialist assistance. A warning
light on the instrument panel display monitors
the brake fluid level ››› page 89
.
In right-hand drive vehicles the brake fluid
reservoir is on the other side of the engine
compartment. Changing brake fluid
We r

ecommend that you have the brake fluid
changed by a Technical Service. WARNING
If the brake fluid level is low or unsuita-
bl e/ol

d brake fluid is used, the brake sys-
tem may fail or braking power may be re-
duced.

Maintenance
Wheels Problem Solution
Antifreeze salt Water
Brake abrasion
dust Acid-free special cleaning
productEnd exhausts
Problem Solution
Antifreeze salt Water, if a steel cleaning prod- uct is requir
ed Covers / Trims
Problem Solution
Dirt Neutral soap solutiona)
, if a
st eel cl

eaning product is re-
quired a)
Neutral soap solution: two tablespoons maximum in
1 litr e of w

ater
Paint Problem Solution
Paint flaws Check the paint

Index
Index
Numbers and Symbol s
12-v
olt battery
assisted start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
charge level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
disconnect and connect . . . . . . . . . . . . . . 86, 338
electrolyte level . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
energy management . . . . . . . . . . . . . . . . . . . . . 344
replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
winter operations . . . . . . . . . . . . . . . . . . . . . . . . . 338
48-volt battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342 control lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
A
ABS see Anti-lock brake system . . . . . . . . . . . . . . . . 279
ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155, 365
Activating SEAT CONNECT . . . . . . . . . . . . . . . . . . 186
Active cylinder management (ACT) status indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Adapting the playback volume . . . . . . . . . . . . . . . 181
Adaptive Cruise Control . . . . . . . . . . . . . . . . . . . . . 253 control and warning lamp . . . . . . . . . . . . . . . . . 254
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
noises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
special driving situations . . . . . . . . . . . . . . . . . . 256
status display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
system limitations . . . . . . . . . . . . . . . . . . . . . . . . . 257 AdBlue
control and w arning lamps . . . . . . . . . . . . . . . . 324
information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
minimum filling capacity . . . . . . . . . . . . . . . . . . 324
specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Additional heating see Auxiliary heating . . . . . . . . . . . . . . . . . . . . . . 165
Adjust front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
headrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
seat with memory . . . . . . . . . . . . . . . . . . . . . . . . . 137
time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Adjusting the seat belt . . . . . . . . . . . . . . . . . . . . . . . . 22
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
activating and deactivating . . . . . . . . . . . . . . . . 29
centre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
for the head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
for the knees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
deactivation of the front airbag . . . . . . . . . . . . 29
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
how it works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Air conditioning
air recir culation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
parking ventilation . . . . . . . . . . . . . . . . . . . . . . . . . 165
usage instructions . . . . . . . . . . . . . . . . . . . . . . . . . 162
Air recirculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Alternator warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Android Auto™ Disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
establish connection . . . . . . . . . . . . . . . . . . . . . . . 191
menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
special characteristics . . . . . . . . . . . . . . . . . . . . 192
Anti-lock brake system . . . . . . . . . . . . . . . . . . . . . . 279
Anti-puncture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46, 47
Anti-puncture kit . . . . . . . . . . . . . . . . . . . . . . . . . . 45, 46 check after 10 minutes . . . . . . . . . . . . . . . . . . . . . 48
components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
inflating the tyre . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
sealing the tyre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Anti-puncture set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Anti-theft alarm system . . . . . . . . . . . . . . . . . . . . . . 107 trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Anti-trap function sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
sunshade blind (glass roof) . . . . . . . . . . . . . . . . 119
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Apple CarPlay Disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
establish connection . . . . . . . . . . . . . . . . . . . . . . 190
381

Index
menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
r equir
ements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
special characteristics . . . . . . . . . . . . . . . . . . . . . 191
Applications (apps) . . . . . . . . . . . . . . . . . . . . . . . . .190
Aspects to think about before starting the ve- hicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Assistance systems adaptive cruise control . . . . . . . . . . . . . . . . . . . 253
assisted parting system (Park Assist) . . . . . . 282
Auto Hold function . . . . . . . . . . . . . . . . . . . . . . . . . 277
connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
cruise control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
door opening warning (Exit Assist) . . . . . . . . . 271
driver alert system . . . . . . . . . . . . . . . . . . . . . . . . . . 77
driving assist (Travel Assist) . . . . . . . . . . . . . . . 263
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . 265
emergency braking (Front Assist) . . . . . . . . . 249
front camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
front radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
general notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Lane Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
lane departure warning (Side Assist) . . . . . . 267
parking aid Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
PreCrash system . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
proactive speed adjustment . . . . . . . . . . . . . . 259
rear camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
rear cross traffic alert (RCTA) . . . . . . . . . 267, 270
rear parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
rear radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
road sign detection system messages . . . . . . 78
safety advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
speed limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
system limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Tyre pressure monitor indicator . . . . . . . . . . . 352 Tyre pressure monitoring . . . . . . . . . . . . . . . . . . 352
ultrasound sensors . . . . . . . . . . . . . . . . . . . . . . . .
244
Assisted start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Audible warning control and warning lamps . . . . . . . . . . . . . . . . . 89
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
unbuckled seat belt . . . . . . . . . . . . . . . . . . . . . . . . . 18
Auto Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Auto Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Auto Lock (central locking) . . . . . . . . . . . . . . . . . . . 101
Automatic car wash . . . . . . . . . . . . . . . . . . . . . . . . 360 disconnecting the Auto Hold function . . . . . . 277
Automatic dipped beam headlight control . . . 121
Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . 229 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
downhill assistant . . . . . . . . . . . . . . . . . . . . . . . . . 233
driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
launch-control program . . . . . . . . . . . . . . . . . . 233
operating fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
parking lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
selector lever lock . . . . . . . . . . . . . . . . . . . . . . . . 230
selector lever positions . . . . . . . . . . . . . . . . . . . . 229
steering wheel with shift paddles . . . . . . . . . . 231
tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229, 231
towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Auxiliary heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
activate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
electricity consumers . . . . . . . . . . . . . . . . . . . . . 168
programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
radio-operated remote control . . . . . . . . . . . . 167 remote control range . . . . . . . . . . . . . . . . . . . . . . 167
special charact
eristics . . . . . . . . . . . . . . . 166, 168
usage instructions . . . . . . . . . . . . . . . . . . . . . . . . . 168
Average fuel consumption . . . . . . . . . . . . . . . . . . . . 70
B Backrest of the rear seat folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
raise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Bag hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147, 154
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 change on the remote control (independ-ent heating) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Battery Manager Menu . . . . . . . . . . . . . . . . . . . . . . 311
Before starting the vehicle . . . . . . . . . . . . . . . . . . . . 14
Belt tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Bicycle carrier fitting onto the coverable tow hook . . . . . . . 305
max. load rating . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Blown bulbs change a bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Bluetooth® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328, 331
opening and closing . . . . . . . . . . . . . . . . . . . . . . 329
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
brake servo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
braking assistant . . . . . . . . . . . . . . . . . . . . . . . . . . 279
electronic parking brake . . . . . . . . . . . . . . . . . . 275
emergency brake function . . . . . . . . . . . . . . . . 276
new brake pads . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Braking assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
382