2018 Seat Leon sensor

Driving
Electronic torque management (XDS)
When t aking a curv
e
, the driveshaft differen-
tial mechanism allows the outer wheel to turn
at a higher speed than the inner wheel. In this
way, the wheel that is turning faster (outer
wheel) receives less drive torque than the in-
ner wheel. This may mean that in certain sit-
uations the torque delivered to the inner
wheel is too high, causing the wheels to spin.
On the other hand, the outer wheel is receiv-
ing a lower drive torque than it could transmit.
This causes an overall loss of lateral grip on
the front axle, resulting in understeer or
“lengthening” of the trajectory.
The XDS system can detect and correct this
effect via the sensors and signals of the ESC.
Via the ESC, the XDS will brake the inside
wheel and counter the excess driving torque
of that wheel. This means that the driver

Start and driving
Since the luggage rack increases the aer o-
dynamic dr ag
of the vehicle, you should re-
move it when not needed. At speeds of
100-120 km/h (62-75 mph), this will save 12%
of fuel.
Save electrical energy
The engine drives the alternator, thereby
generating electricity. This implies that any
increase in power consumption also increa-
ses fuel consumption! For this reason, switch
off any unneeded electrical devices. Devices
that use a lot of electricity includes the blow-
er at a high setting, the rear window heating
or the seat heating*.
Power management
This system helps to ensur
e relia-
ble starting The power management controls the distri-
bution of el
ectrical ener
gy and thus helps t

o
ensure that there 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 v

ehicle 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
registers the condition of the battery. 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 r
eliably.
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

Driver assistance systems
Additional information related to the auto-
matic gearbo x
The engine st ops when the sel
ector lever is in
the positions P, D, N and S 1)
, in addition to
when in Triptonic mode. With the selector lev-
er in position P, the engine will also remain
switched off when you take your foot off the
brake pedal. In order to start the engine up
again the accelerator must be pressed, or
another gear engaged or the brake released.
If the selector lever is placed in position R dur-
ing the stopping phase, the engine will start
up again.
Change from position D to P to prevent the
engine from accidentally starting when
changing and passing by position R.
Additional information about vehicles with
Adaptive Cruise Control (ACC)
In vehicles with ACC function, the engine will
start up again in certain operating conditions
if the radar sensor detects that the vehicle
ahead drives off again. WARNING

Driver assistance systems
to the presence of metallic objects (e.g. rails
on the r oad or sheets used in r
oad w
orks).
The area in front of and around the radar
sensor should not be covered with adhesives,
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, for example if the suspension is lowered,
Front Assist operation may be affected. SEAT
recommends visiting a SEAT dealership for
this purpose. CAUTION
If you have the sensation that the radar
sensor is damaged or has lost its settings, disconnect the Fr ont Assist. This will av

oid
possible dangerous situations caused by a
system malfunction. If this occurs have it
adjusted.

Driving
Special driving situations Fig. 275
(A) Vehicle on a bend. (B) Motorcy-
clist ahead out of r ange of the radar sensor
. Fig. 276
(C) Vehicle changing lanes. (D) One
v ehicl e t

urning and another stationary. The adaptive cruise control (ACC) has cer-
t
ain physical limit
ations inher

ent in the sys-
tem. For example, certain reactions of the
ACC, in certain circumstances, may be unex-
pected or come late from the driver

Driver assistance systems
Narrow or misaligned vehicles
The r adar sensor can only det
ect narr
ow or
misaligned vehicles when they are within
range

Driving
There are sensors integrated in the rear
bumper . When the sensors det
ect an obst
a-
cle, you are alerted by audible warnings.
Make particularly sure that the sensors are
not covered by adhesives, residues, dirt and
the like, as this could affect the system

Information for the user
Information about the EU Di-
r ectiv
e 2014/53/EU
Simplified EU compliance decl
ara-
tion Your vehicle has different radioelectrical devi-
ces. The manufact
ur

ers of these devices de-
clare that they comply with Directive
2014/53/EU when legally required.
The full text of the EU compliance declaration
is available online at the following address: www.seat.com/generalinfo
&
Table of correspondences The table of correspondences will help you to
associat
e the name of the de
vice in the dec-
l

aration of compliance with the features of
the vehicle and the terminology used in the
on-board documentation. Features of the
vehicl
e Name of the de

vice
according to the dec-
l
aration of compli-
ance
Radiofrequency re-
mote contr ol (v

ehicle)FS09, FS12A, FS12P, FS1477,
FS94 Features of the
vehicl
e Name of the de

vice
according to the dec-
l
aration of compli-
ance
Radio frequency re-
mote contr ol (auxili-
ary heat

er) Sender STH SEAT -
50000914
Telestart
Auxiliary heating 50000864 / D208L VW Telestart
Bluetooth MIB2 Entry
MIB Standard 2
MIB2 Main-Unit
A580 / A270
Wireless hotspot MIB2 Main-Unit A580 / A270
Keyless Access Sys-
t em MQB-B B
R adar sensors f

or as-
sistance systems ARS4-B
MRR

evo14F
BSD3.0
Central control unit 5WK50254
5WK50474 Features of the
vehicl
e Name of the de

vice
according to the dec-
l
aration of compli-
ance
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 UM

TS/GSM-MMC
UMTS/GSM-MMC-AG2
Instrument panel eNSF Immobilizer integrated in
dashboard module
instrument clust

er
Antenna FM/AM Antenna Base
Antennas MQB27 Small/Big
family
Antennas KSA Small F

am III
5Q0.035.507 Roof Antenna
GNSS Antenna VAG
720166002
8S7.035.503.B 352