fuel Seat Leon SC 2017 User Guide

The essentials
Make sure the battery clamps have sufficient
met al-t
o-met
al contact with the battery termi-
nals.
If the engine fails to start after about 10 sec-
onds, switch off the starter and try again after
about 1 minute. WARNING
● Ple a

se note the safety warnings referring to
working in the engine compartment
›››  page 270.
● The battery providing assistance must have
the same v
oltage as the flat battery (12V) and
approximately the same capacity (see imprint
on battery). Failure to comply could result in
an explosion.
● Never use jump leads when one of the bat-
teries
is frozen. Danger of explosion! Even af-
ter the battery has thawed, battery acid could
leak and cause chemical burns. If a battery
freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes
awa
y from batteries, danger of explosion.
Failure to comply could result in an explo-
sion.
● Observe the instructions provided by the
manufact
urer of the jump leads.
● Do not connect the negative cable from the
other vehic
le directly to the negative terminal
of the flat battery. The gas emitted from the
battery could be ignited by sparks. Danger of
explosion. ●
Never att ac

h the negative cable to fuel sys-
tem components or the brake lines in the oth-
er vehicle.
● The non-insulated parts of the battery
clamp
s must not be allowed to touch. The
jump lead attached to the positive battery
terminal must not touch metal parts of the ve-
hicle, this can cause a short circuit.
● Position the leads in such a way that they
cannot c
ome into contact with any moving
parts in the engine compartment.
● Do not lean on the batteries. This could re-
sult
in chemical burns. Note
The vehicles must not touch each other, oth-
erw i

se electricity could flow as soon as the
positive terminals are connected. Changing the wiper blades
W ind
s

creen wipers service position Fig. 81
Wipers in service position. The wiper arms can be raised when the wip-
er
s
ar

e in service position ››› Fig. 81.
● Close the bonnet ›››

 page 270.
● Switch the ignition on and off.
● Press the windscreen wiper lever down-
ward
s briefly 4
› ›
› page 32.
Before driving, always lower the wiper arms.
Using the windscreen wiper lever, the wind-
screen wiper arms return to their initial posi-
tion.

››› page 97 72

Airbag system
such as the properties of the object the vehi-
c l
e hits
(hard/soft), angle of impact, vehicle
speed, etc.
Deceleration trajectory is key for airbag acti-
vation.
The control unit analyses the collision trajec-
tory and activates the respective restraint
system.
If the deceleration rate is below the prede-
fined reference value in the control unit the
airbags will not be triggered, even though
the accident may cause extensive damage to
the car.
The following airbags are triggered in seri-
ous head-on collisions:
● Driver airbag.
● Front passenger front airbag
● Knee airbag for the driver.
The fol
lowing airbags are triggered in seri-
ous side-on collisions:
● Front side airbag on the side of the acci-
dent.
● Re

ar side airbag on the side of the acci-
dent.
● Cur

tain (head) airbag on the side of the ac-
cident. In an ac

cident with airbag activation:
● the interior lights switch on (if the interior
light swit
ch is in the courtesy light position);
● the hazard warning lights switch on;
● all doors are unlocked;
● the fuel supply to the engine is cut.
Safety instructions about air-
bags Fr

ont airbags Read the additional information carefully
› ›
›

 page 22. WARNING
● The deplo yment

space between the front
passengers and the airbags must not in any
case be occupied by other passenger, pets
and objects.
● The airbags provide protection for just one
accident; r
eplace them once they have de-
ployed.
● It is also important not to attach any ob-
jects
such as cup holders or telephone
mountings to the surfaces covering the air-
bag units.
● Do not attempt to modify components of
the airbag sys
tem in any way. Knee airbag*
Read the additional information carefully
›› ›

 page 23. WARNING
● The knee airbag i s

deployed in front of the
driver's knees. Always keep the deployment
areas of the knee airbags free.
● Never not fix objects to the cover or in the
deployment
area of the knee airbag.
● Adjust the driver's seat so that there is a
dist
ance of at least 10 cm (4 inches) between
your knees and the location of the this air-
bag. If your physical constitution prevents
you from meeting these requirements, make
sure you contact a specialised workshop. Side airbags*
Read the additional information carefully
› ›
›

 page 24. WARNING
● If y

ou do not wear a seat belt, if you lean
forward, or are not seated correctly while the
vehicle is in motion, you are at a greater risk
of injury if the side airbag system is triggered
in an accident.
● In order for the side airbags to provide their
maximum pr
otection, the prescribed sitting » 87
Technical data
Advice
Operation
Emergencies
Safety

Emergencies
they should be changed if they are damaged,
or c l
e
aned if they are dirty ››› .
Dam ag
ed w
iper blades should be replaced
immediately. These are available from quali-
fied workshops. WARNING
Worn or dirty windscreen wiper blades reduce
vi s

ibility and increase the risk of accident
and serious injury.
● Always replace damaged or worn wind-
scr
een wiper blades or blades that no longer
clean the windscreen properly. CAUTION
● Damag ed or dir

ty windscreen wipers could
scratch the glass.
● If products containing solvents, rough
spong
es or sharp objects are used to clean
the blades, the graphite layer will be dam-
aged.
● Never use fuel, nail varnish remover, paint
thinner or simil
ar products to clean the win-
dows.
● In icy conditions, always check that the
wiper bl
ades are not frozen to the glass be-
fore using the wipers. In cold weather, it may
help to leave the vehicle parked with the wip-
ers in service position ›››
 page 72. CAUTION
● To pr ev

ent damage to the bonnet and the
wiper arms, only leave them in the service
position.
● Before driving, always lower the wiper
arms. Towing or tow-starting
Genera l

information Read the additional information carefully
› ›
›

 page 69.
Tow-starting means starting the engine of
the vehicle while another pulls it.
Towing means one vehicle pulling another
that is not roadworthy.
If the vehicle comes with the Keyless Access
system, towing is only allowed with the igni-
tion on!
The vehicle battery drains if the vehicle is
towed with the engine switched off and the
ignition connected. Depending on the battery
charge status, the drop in voltage may be so
large, even after just a few minutes, that no
electrical device in the vehicle may work e.g.
the hazard warning lights. In vehicles with
the Keyless Access system, the steering
wheel could lock up. WARNING
If the vehicle has no electrical power, the
brak e light

s, turn signals and all other lights
will no longer function. Do not have the vehi-
cle towed away. Failure to follow this instruc-
tion could result in an accident. WARNING
The risk of accidents is high when tow-start-
ing, f or e

xample, the towed vehicle can easily
be driven into the towing vehicle. CAUTION
If there is no oil in the gearbox or no lubricant
in the autom atic

transmission the car may
only be towed with the driven wheels lifted
clear of the road, or transported on a special
car transporter or trailer. CAUTION
Do not tow a vehicle for more than 50 m in at-
tempt t

o start it. There is risk of damage to
the catalytic converter. Note
● Ple a

se observe related legal requirements.
● Switch on the hazard warning lights of both
vehicl
es. However, observe any regulations
to the contrary. 98

Fuses and bulbsNo.Consumers/Amps
36Right LED headlight7.5
37Left LED headlight7.5
38Trailer25
39Right door30
4012V socket20
42Central locking40
43SEAT Sound, beats sound CAN and
MOST.30
44Trailer15
45Electric driver's seat15
47Rear window wiper15
49Starter motor; clutch sensor5
52Driving mode.15
53Heated rear window30
Fuse arrangement in engine compartment
No.Consumers/Amps
1ESP control unit25
2ESP control unit40/60
3Engine control unit (diesel/pet-
rol)30/15
4Engine sensors5/10
No.Consumers/Amps
5Engine sensors7.5/10
6Brake light sensor5
7Engine power supply5/10
8Lambda probe10/15
9Engine5/10/20
10Fuel pump control unit10/15/20
11PTC40
12PTC40
13Automatic gearbox control unit15/30
15Horn15
16Fuel pump control unit5/15/20
17Engine control unit7.5
18Terminal 30 (positive reference)5
19Front windscreen washer30
20Alarm horn10
22Engine control unit5
23Starter motor30
24PTC40
31Electronic differential CUPRA15
33Automatic gearbox pump30
CAUTION
● Alw a

ys carefully remove the fuse box cov-
ers and refit them correctly to avoid problems
with your vehicle.
● Protect the fuse boxes when open to avoid
the entry of
dust or humidity. Dirt and humid-
ity inside fuse boxes can cause damage to
the electrical system. Note
● In the v ehic

le, there are more fuses than
those indicated in this chapter. These should
only be changed by a specialised workshop.
● Positions not containing a fuse do not ap-
pear in the fo
llowing tables.
● Some of the equipment listed in the tables
below pert
ain only to certain versions of the
model or are optional extras.
● Please note that the above lists, while cor-
rect at
the time of printing, are subject to
change. Changing bulbs
Topic
intr

oduction Read the additional information carefully
› ›
›

 page 64.
Changing bulbs requires a certain degree of
practical skill. »
103
Technical data
Advice
Operation
Emergencies
Safety

Instruments and warning/control lamps
engine hot. However, it is advisable to
c h
an
ge up a gear or move the selector
lever to D (or lift your foot off the acceler-
ator) before the needle reaches the red
zone ››› .
En gine c
oo

lant temperature display
››› page 117 or natural gas gauge in ve-
hicles with natural gas engine (CNG)
››› page 119
Displays on the screen ›››
 page 41,
››› page 115.
Adjuster button and display
››› page 117.
Speedometer.
Fuel gauge ››› page 118. WARNING
Any distraction may lead to an accident, with
the risk of

injury.
● Do not operate the instrument panel con-
trol
s when driving. CAUTION
● To pr ev

ent damage to the engine, the rev
counter needle should only remain in the red
zone for a short period of time.
● When the engine is cold, avoid high revs
and heavy ac
celeration and do not make the
engine work hard. 2
3
4
5
6 For the sake of the environment
Changing up a gear in time reduces fuel con-
sumption and noi se. Rev counter
The rev counter indicates the number of en-
gine rev
o

lutions per minute ››› Fig. 122 1 .
Tog ether w
ith the gear-change indicator, the
rev counter offers you the possibility of using
the engine of your vehicle at a suitable
speed.
The start of the red zone on the dial indicates
the maximum engine speed which may be
used briefly when the engine is warm and af-
ter it has been run in properly. Before reach-
ing this range, you should change to a higher
gear for vehicles with a manual gearbox or for
automatic gearboxes put the selector lever in
“D” or take your foot off the accelerator ped-
al.
We recommend that you avoid high revs and
that you follow the recommendations on the
gear-change indicator. Consult the additional
information in ›››
 page 42, Gear-change
indicator. CAUTION
Never allow the rev counter needle
›› ›

Fig. 122 1 to go into the red zone on the scale for more than a very brief period, other-
wi
se ther

e is a risk of engine damage. For the sake of the environment
Changing up a gear early will help you to save
f uel and minimi

se emissions and engine
noise. Indications on the display
A variety of information can be viewed on the
in
s
trument

panel display ››› Fig. 122 3 , de-
pendin g on the
v
ehicle equipment:
● Bonnet, rear lid and doors open
›››
 page 41.
● Warning and information messages
›››
 page 41.
● Distance travelled ›››
page 117.
● Time ››› p
age 116.
● Navigation instructions.
● Outside temperature ›››

 page 42.
● Compass ››› p
age 116.
● Shift lever position ›››
page 191.
● Recommended gear (manual gearbox)
›››
 page 42.
● Multifunction display (MFD) and menus
with differ
ent setting options ›››
 page 36.
● Service interval display ›››

 page 44. »
115
Technical data
Advice
Operation
Emergencies
Safety

Operation
● Sec ond s
peed di
splay ››› page 116 .
● Speed warning function ›››

 page 43.
● Start-Stop system status display
›››
page 205.
● Active cylinder management display
(ACT ®
)* ››

› page 200
● Signs recognised by the traffic signal de-
tection sys
tem ››› page 233
● Low consumption driving status (ECO)
›››
page 117
● Engine code (MKB) ›››
page 117.
Distance travelled
The odometer registers the total distance
travelled by the car.
The odometer (trip ) shows the distance
travelled since the last odometer reset. The
last digit of the trip recorder indicates distan-
ces of 100 metres or one tenths of a mile.
● Briefly press the button ›››
Fig. 122 4 to re-
set the trip r
ec
order to 0.
● Keep the button 4 pressed for about 3
sec ond
s

and the previous value will be dis-
played.
Time
● To set the time, keep the button ›››
Fig. 122
4 pressed for more than 3 seconds to select
the hour or minut e di
s
play. ●
To continue settin
g the time, press the up-
per or lower part of the button 4 . Hold but-
t on do
wn t
o scroll through the numbers
quickly.
● Press the button 4 again in order to finish
settin g the time.
The time c an al

so be set on the Easy Connect
system using the  button and the function
b utt
on

SETTINGS > Date and time
›››  page 33.
Compass
With the ignition on and the navigation sys-
tem on, the cardinal point corresponding to
the direction of travel of the vehicle is dis-
played on the instrument panel.
Selector lever position
The selected gear is displayed on the side of
the selector lever and on the instrument pan-
el display. In positions D and S, and with the
Tiptronic, the corresponding gear is also dis-
played.
Recommended gear (manual gearbox)
The recommended gear in order to save fuel
is displayed on the instrument panel while
you are driving ›››
 page 42. Second speed display (mph or km/h)
In addition t

o the speedometer, the speed
can also be displayed in a different unit of
measurement (in miles or in km per hour).
This option cannot be deactivated in models
destined for countries in which the second
speed must always be visible.
The second speed display can be adjusted in
the Easy Connect system by means of the  button and the function button SETTINGS >
Units › ›
›

 page 33.
Speed warning
When the speed setting is exceeded, this will
be indicated on the instrument panel display.
This is very useful, for example when using
winter tyres that are not designed for driving
at the maximum speed of the vehicle
›››  page 43.
The speed warning settings can be adjusted
in the Easy Connect system by means of the  button and the function button SET-
TINGS > Driver Assistance
› ›
›

 page 33.
Start-Stop operating display
Updated information relating to the status is
displayed on the instrument panel
››› page 205.
116

Operation
For vehicles with no coolant temperature
g aug
e, a c
ontrol lamp  appears for high
coolant temperatures ››› page 274. Please
note ››› .
The c oo
l

ant temperature gauge only works
when the ignition is switched on ››› Fig. 124.
In order to avoid engine damage, please read
the following notes for the different tempera-
ture ranges.
Engine cold
If only the diodes in the lower part of the
scale light up, this indicates that the engine
has not yet reached operating temperature.
Avoid high revs and heavy acceleration and
do not make the engine work hard.
Normal temperature
If in normal operations, the diodes light up
until the central zone, it means that the en-
gine has reached operating temperature. At
high outside temperatures and when making
the engine work hard, the diodes may contin-
ue lighting up and reach the upper zone. This
is no cause for concern, provided the control
lamp  does not light up on the instrument
panel digital display.
Heat range
When the diodes light up in the upper area of
the display and the control lamp appears on the instrument panel display, the coolant
temperat

ure is excessive ››› page 274. CAUTION
● To en s

ure a long useful life for the engine,
avoid high revs, driving at high speed and
making the engine work hard for approxi-
mately the first 15 minutes when the engine
is cold. The phase until the engine is warm al-
so depends on the outside temperature. If
necessary, use the engine oil temperature*
›››  page 43 as a guide.
● Additional lights and other accessories in
front of
the air inlet reduce the cooling effect
of the coolant. At high outside temperatures
and high engine loads, there is a risk of the
engine overheating.
● The front spoiler also ensures proper distri-
bution of the c
ooling air when the vehicle is
moving. If the spoiler is damaged this can re-
duce the cooling effect, which could cause
the engine to overheat. Seek specialist assis-
tance. Fuel level - Petrol/Diesel
Fig. 125
Instrument panel: petrol/diesel
g aug
e The display
››
› Fig. 125
only works when the
ignition is switched on. When the display rea-
ches the reserve mark, the lower diode lights
up in red and the control lamp  appears
››› page 114. When the fuel level is very low,
the lower diode flashes in red.
The fuel range is displayed on the instrument
panel ››› Fig. 122 3 .
The c ap
ac

ity of the fuel tank of your vehicle is
given in the Technical data section
›››  page 58. CAUTION
Never run the fuel tank completely dry. An ir-
re gu

lar fuel supply could cause misfiring. In
this way the unburned fuel can reach the ex-
haust system, which could cause the catalytic
converter to overheat resulting in damage. 118

Instruments and warning/control lamps
Fuel - Natural Gas level 3 Valid in vehicles equipped with natural gas engine
(GNC)
Fig. 126
Instrument panel: Natural gas gauge The gauges
››
› Fig. 126 and ››› Fig. 125 only
work when the ignition is on. When the dis-
play reaches the reserve mark, the lower LED
lights up in red and the control lamp  ap-
pears. When the fuel level is very low, the
lower diode flashes in red.
● The green warning lamp  ›››
Fig. 126 1 lights up when the vehicle is running in natu-
r
al
g
as operating mode.
● The green warning lamp  1 turns off
when the n at
ur

al gas is exhausted. The en-
gine changes to operate with petrol.
● The yellow control lamp  lights up when
the re
serve level has been reached. Things to note
If the v

ehicle is left parked for a long time im-
mediately after refuelling, the natural gas lev-
el indicator may not accurately indicate the
same level shown after refuelling when the
vehicle is started up again. This is not due to
a leak in the system, but to a drop in pres-
sure in the gas tank for technical reasons af-
ter a cooling phase just after refuelling.
Control lamps
Warning and c
ontrol lamps Read the additional information carefully
› ›
›

 page 47.
The control and warning lamps are indicators
of warnings, ››› , faults
››
› or certain func-
tion s.
Some c

ontrol and warning lamps come
on when the ignition is switched on, and
switch off when the engine starts running, or
while driving.
Depending on the model, additional text
messages may be viewed on the instrument
panel display. These may be purely informa-
tive or they may be advising of the need for
action ›››
page 114, Instruments.
Depending upon the equipment fitted in the
vehicle, instead of a warning lamp, some- times a symbol may be displayed on the in-
strument p

anel.
When certain control and warning lamps are
lit, an audible warning is also heard. WARNING
If the warning lamps and messages are ignor-
ed, the v ehic

le may stall in traffic, or may
cause accidents and severe injuries.
● Never ignore the warning lamps or text
mess
ages.
● Stop the vehicle safely as soon as possible.
● Park the vehicle away from traffic and en-
sure th
at there are no highly flammable ma-
terials under the vehicle that could come into
contact with the exhaust system (e.g. dry
grass, fuel).
● A faulty vehicle represents a risk of acci-
dent for the driv
er and for other road users. If
necessary, switch on the hazard warning
lamps and put out the warning triangle to ad-
vise other drivers.
● Before opening the bonnet, switch off the
engine and al
low it to cool.
● In any vehicle, the engine compartment is a
hazar
dous area and could cause severe inju-
ries ››› page 270. CAUTION
Failure to heed the control lamps and text
mes s

ages when they appear may result in
faults in the vehicle. 119
Technical data
Advice
Operation
Emergencies
Safety

Opening and closing
The vehicle keys or new spare keys can be
o bt
ained fr
om 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 synchron-
ised before use ››› page 132. CAUTION
All of the vehicle keys contain electronic com-
ponents. Pr ot

ect them from damage, impacts
and humidity. Note
● Only u

se the key button when you require
the corresponding function. Pushing the but-
ton unnecessarily could accidentally unlock
the vehicle or trigger the alarm. It is also pos-
sible even when you are outside the radius of
action.
● Key operation can be greatly influenced by
overl
apping radio signals close to the vehicle
working in the same range of frequencies, for
example, radio transmitters or mobile tele-
phones.
● Obstacles between the remote control and
the vehic
le, bad weather conditions and dis-
charged batteries can considerably reduce
the range of the remote control.
● If the buttons of the vehicle key are press-
ed ›››

Fig. 132 or ››› Fig. 133 or one of the cen-
tral locking buttons ››› page 128 is pressed
repeatedly in short succession, the central
locking briefly disconnects as protection against overloading. The vehicle is then un-
lock
ed. L

ock it if necessary. Unlocking/Locking by remote control
Read the additional information carefully
›› ›

 page 15
The vehicle will be locked again automatical-
ly if you do not open one of the doors or the
rear lid within 30 seconds after unlocking the
car. This function prevents the vehicle from
remaining unlocked if the unlocking button is
pressed by mistake. This does not apply if
you press the  button for at least one sec-
ond.
In vehicles with a security central locking
feature (selective unlocking of side doors)
››› page 127, when the  button is pressed
once, only the driver door and the fuel tank
flap are unlocked. When the button is press-
ed a second time, all the vehicle doors are unlocked. WARNING
Observe the safety warnings ›››
in Descrip-
tion on pag e 125
. Note
● Do not u se the r

emote control key until the
vehicle is visible. ●
Other fu nction

s of the remote control key
››› page 137, Convenience opening and clos-
ing. Selective unlocking system
The selective unlocking system allows you to
only
u

nlock the driver door and the fuel tank
flap. All other doors and the rear lid remain
locked.
Unlocking the driver door and tank flap
– Press ( once) the  b utt
on on the remote
control key or turn the key once in the
opening direction.
Unlocking all the doors, the rear lid and the
tank flap simultaneously. – Within 5 seconds, press ( twice) the
 but-
ton on the remote control key, or turn the
key twice within 5 seconds in the opening
direction.
The anti-theft security system* and the anti-
theft alarm* are immediately disabled if you
unlock only the driver door, without unlock-
ing the other doors.
In vehicles with Easy Connect*, you can pro-
gramme the security central locking system
directly ››› page 128.
127
Technical data
Advice
Operation
Emergencies
Safety

Operation
Adjusting the central locking You can use Easy Connect* to select which
doors
ar
e unlocked with the central locking
system. Using the radio or the Easy Connect*
system, you can select whether the vehicle
automatically closes with the “Auto Lock”
programme at speeds of more than 15 km/h
(9 mph).
Programming the unlocking of the doors (ve-
hicles with Easy Connect)
– Select:  button > SETTINGS
fu
nction
b

utton > Opening and closing > Cen-
tral locking > Unlocking doors .
Programming the Auto Lock (vehicles with
Easy Connect)
– Select:  button > SETTINGS
fu
nction
b

utton > Opening and closing > Cen-
tral locking > Locking while
driving .
Programming the Auto Lock (vehicles with
radio)
– Select: SETUP button > control button

Central locking > Locking while
driving .
Un loc
k

ing doors
You can choose to unlock all the doors or
only the driver door when you unlock the vehicle. In all
the options, the fuel
tank flap
is also unlocked.
With the Driver setting, when you press the
 button on the remote control key once, on-
ly the driver door is unlocked. If that button is
pressed twice, the rest of the doors and the
rear lid will be unlocked.
In vehicles with a conventional key, turn the
key in the door lock, in the direction of open-
ing, twice within 2 seconds.
If the  button is pressed, all the vehicle
doors are locked. At the same time, a confir-
mation signal* is heard.
Auto Lock while driving
If you select on, all the vehicle doors are
locked at speeds above 15 km/h (9 mph).
Central locking switch Read the additional information carefully
› ›
›

 page 15
Please note the following when using the
central locking switch to lock your vehicle:
● It is not possible to open the doors or the
rear lid fr
om the outside (for safety reasons,
e.g. when stopped at traffic lights).
● The LED in the central locking switch lights
up when all the door
s are closed and locked. ●
You can open the door
s individually from
the inside by pulling the inside door handle.
● In the event of an accident in which the air-
bags
inflate, doors locked from the inside will
be automatically unlocked to facilitate access
and assistance. WARNING
● The centr a

l locking switch also operates
when the ignition is switched off and auto-
matically locks all the vehicle doors when the
 button is pressed.
● The central locking switch does not operate
if the v
ehicle is locked from the outside and
the anti-theft security system is switched on.
● Locked doors could delay assistance in an
emergency
, potentially putting lives at risk.
Do not leave anyone, especially children, in
the vehicle. Note
Your vehicle will lock automatically when it
re ac

hes a speed of about 15 km/h (9 mph)
(Auto Lock) ››› page 125. You can unlock the
vehicle again using the  button on the cen-
tral locking switch. 128