sensor Seat Leon 2019 Owner's manual

Safety
belt webbing, contact a specialised work-
shop for help with any special devices to
ensur e the optimum pr
otection of the seat
belt and airbag. SEAT recommends taking
your car in for technical service. Seat belt tensioners
How the seat belt tensioner works The seat belts for the occupants in the front
seats ar
e equipped with belt t
ensioners.
The belt t ensioners ar
e activ

ated by sensors,
although only in severe head-on, lateral and
rear-end collisions. This retracts and tightens
the seat belts, reducing the forward motion of
the occupants.
The belt pre-tensioners work in combination
with the airbag system. In case of overturn,
the pre-tensioners do not activate unless the
head airbags are deployed. Note

Fuses and bulbs
No. Consumers/Amps
6 Brake light sensor 7.5
7 Engine power supply 7.5/10
8 Lambda probe 10/15
9 Engine 10/20
10 Fuel pump control unit 15/20
11 PTC 40
12 PTC 40
13 Automatic gearbox pump 30
15 Horn 15
16 Fuel pump control unit 7.5/20
17 Engine control unit 7.5
18 Terminal 30 (positive refer-
ence) 7.5
19 Front windscreen washer 30
21 Automatic gearbox control unit 15/30
22 Engine control unit 7.5
23 Starter motor 30
24 PTC 40
31 Pressure pump 1.0 15
32 Front electronic differential 15 In-line fuse
Amperes
Rear power sockets 7.5 Note

Operation
Unlock and lock the vehicle with
K eyl
ess Access* Fig. 99
Keyless Access: proximity zones. Fig. 100
Door handle: sensor surfaces

Operation
on the door handle. The door should not
open.
The ne xt time the door can only be unl
ocked
via the r emot
e control or the lock cylinder.
The next time the door is locked/unlocked,
Keyless Access will be active again.
Convenience functions
To close all the electric windows and the sun-
roof using the comfort function, keep a fin-
ger for a few seconds on the locking sensor
surface

Operation
position  or , accor ding t
o the l e
v el of ex-
terior lighting.
When the light switch is in position , a light sensor automatically switches dipped beam
on and off (including the control and instru-
ment lighting) or the daytime running lights
depending on the level of exterior lighting.
Motorway light*
The motorway light is available on vehicles
equipped with full-LED lights.
The function is connected and disconnected
via the corresponding Easy Connect system
menu.

Driving
The area in front of and around the radar
sensor shoul d not be co
ver
ed with adhesiv
es,
additional or similar headlights, as this may
negatively affect Front Assist operation.
If the front of the vehicle is not properly re-
paired or structural modifications are made
to it, Front Assist operation may be affected.
SEAT recommends visiting a SEAT dealership
for this purpose. CAUTION
If you have the feeling that the radar sensor
is damaged or has lost its settings, discon-
nect the Front Assist. This will avoid possi-
bl e danger

ous situations caused by the in-
adequate operation of the system. If this
occurs have it adjusted.

Driving
Distance from the vehicle ahead. ACC is
not activ e and is not r
egulating your dis-
t ance
.
Vehicle ahead detected. ACC is active
and is regulating your speed.
Distance level 2 set by the driver.
ACC is active and is regulating your dis-
tance based on speed.
Speed programmed with the ACC Note
When the ACC is connected, the indica-
tions on the instrument panel screen may be concealed by warnings fr om other func-
tions, such as an incoming call. Radar sensors
Fig. 275
On the front bumper: radar sensors. 2
3
4
5
6 A radar sensor is fitted on the front bumper

Driving
Overheated brakes
If the br ak
es o v
erheat, f
or example on long
and steep descents, the ACC may be deacti-
vated temporarily. A message will be dis-
played stating this. In this case, adaptive
cruise control cannot be activated.
Cruise control may be reactivated once the
brake temperature has dropped. The mes-
sage will disappear. If the message ACC not
available remains on for quite a long time it
means that there is a fault. Contact a speci-
alised workshop. SEAT recommends visiting a
SEAT dealership. WARNING
If you do not pay attention to the Press
the brake message, the vehicle may mo v

e
and crash into the vehicle ahead. Before
driving off again, check that the road is
clear. The radar sensor may not detect ob-
stacles on the road. This could cause an
accident and serious injuries. If necessary,
apply the brake. Lane Assist*
Intr oduction Fig. 281
On the windscreen: field of vision of
the L ane Assist syst
em. Using the camera located in the windscreen,
the L
ane Assist syst
em detects the possibl
e
lines dividing the l

anes. When the vehicle in-
voluntarily approaches a dividing line it has
detected, the system notifies the driver with a
corrective steering movement. The purpose is
not only to warn the driver, but also to keep
the vehicle inside the lane. This movement
can be over-regulated at any time.
No warning is produced with the turn signals
activated, given that the Lane Assist system
understands that a lane change is required. Control lamp

Practical tips
disposed of appropriately and must not be
disposed of with ordinary household wast
e
.Energy management
Optimisation of the starting ca-pacity The power management controls the distri-
bution of electrical energy and thus helps to
ensur
e that ther

e is always enough power
available to start the engine.
If a vehicle with a conventional electrical sys-
tem is left parked for a long time, the battery
will gradually lose its charge because certain
electrical devices, such as the electronic
gearbox lock continues to draw current even
when the ignition is off. In some cases there
may not be enough power available to start
the engine.
Your vehicle is equipped with an intelligent
power management system to control the
distribution of electrical energy. This signifi-
cantly improves reliability when starting the
engine, and also prolongs the useful life of the
battery.
The main functions incorporated in the power
management system are battery diagnosis,
residual current management and dynam-
ic power management. Battery diagnosis
The battery diagnosis function constantly
regist ers the condition of the batt

ery. Sensors
detect the battery voltage, battery current
and battery temperature. This enables the
system to calculate the current power level
and charge condition of the battery.
Residual current management
The residual current management reduces
power consumption while the vehicle is
parked. It controls the supply of power to the
various electrical devices while the ignition is
switched off. The system takes the battery di-
agnosis data into consideration.
Depending on the power level of the battery,
switch off the individual electrical devices
one after the other to prevent the battery
from losing too much charge and to ensure
that the engine can be started reliably.
Dynamic power management
While the vehicle is moving, this function dis-
tributes the available power to the various
electrical devices and systems according to
their requirements. The power management
ensures that on-board systems do not con-
sume more electrical power than the alterna-
tor can supply, and thus maintains the maxi-
mum possible battery power level. Note

Information for the user
Features of the
vehicle
Name of the device
accor ding t
o the dec-
laration of compli-
ance
Wir
eless hotspot MIB2 Main-Unit A580 / A270
Keyless Access Sys-
tem MQB-B B
Radar sensors for as-
sist ance syst

emsARS4-B
MRRe
v

o14F
BSD3.0
Central control unit 5WK50254 5WK50474
Infotainment system MIB2 Entry MIB Standard 2
MIB2 Main-Unit
A580 / A270
Wireless charging WCH-183 WCH-185
5G0.980.611
Connection to the ex-
t ernal antenna of the
car UMT
S/GSM-MMC
UM
TS/GSM-MMC-AG2
LTE-MBC-EU Features of the
vehicle
Name of the device
accor
ding t

o the dec-
laration of compli-
ance
Instrument panel
eNSF
Immobilizer integrated in
dashboard module
instrument cluster
Ant enna FM/AM Ant

enna Base
Antennas MQB27 Small/Big
family
Antennas KSA Small Fam III
5Q0. 035.507 R

oof Antenna
GNSS Antenna VAG
720166002
8S7.035.503.B Features of the
vehicle
Name of the device
accor
ding t

o the dec-
laration of compli-
ance
Ant
enna amplifiers 6F0.035.225 6F9.035.225
3V5.035.577.A
7N0.

035.552.J
7N0.035.552.K
7N0.035.552.Q
5F4.035.225
5F4.035.225.A
5F4.035.225.B
5F9.035.225
5F9.035.225.A
5F9.035.225.B
575,035,225
575.035.225.A
575.035.225.B
5FJ.035.225
5FJ.035.225.A
5FJ.035.225.B Addresses of the manufacturers
According to the Directive 2014/53/EU, all
r
el
ev
ant components must include the ad-
dr

ess of the manufacturer.
The address of the manufacturers of compo-
nents that, due to their size or nature, cannot
include a sticker are listed below, as long as it
is legally required: