2014 Seat Leon SC ABS

The essentials
Front brake pads worn.
›››
page
143 
it lights up:
Fault in the ESC, or dis-
connection caused by the system.
flashes: ESC or ASR activated. 
ASR manually deactivated.

ABS faulty or does not work.

Rear fog light switched on.›››
page
94 
lights up or flashes:
fault in the
emission control system.– 
it lights up:
pre-ignition of diesel
engine.
››› page
71
flashes: fault in the diesel engine
management. 
fault in the petrol engine manage-
ment.›››
page
71 
lights up or flashes:
fault in the
steering system.››› page
190 
Tyre pressure too low, or fault in
the tyre pressure monitoring sys-
tem.›››
page
212 
Fuel tank almost empty.›››
page
66 
Fault in airbag system and seat
belt tensioners.›››
page
48 
Lane Assist is switched on, but not
active.›››
page
166 Other warning lamps

Left or right turn signal.›››
page
94
Hazard warning lights on.››› page
99 
Trailer turn signals›››
page
177 
it lights up:
Press the foot brake!
flashes: the selector lever locking
button has not engaged.››› page
132 
it lights up:
cruise control activated
or speed limiter switched on and
active.
››› page
150
flashes: the speed set by the
speed limiter has been exceeded. 
Lane Assist is switched on and ac-
tive.›››
page
166 
Main beam on or flasher on.›››
page
94 On the instrument panel screen
Fig. 35
See Fig. 3 for positioning   Do not continue driving!
With the corresponding indica-
tion: door(s), rear lid or bonnet
open or not properly closed.››› page
82
››› page
89
››› page
198 
Ignition:  Do not carry on driv-
ing! Engine coolant level too low,
coolant temperature too high
››› page
203
Flashing: Fault in the engine
coolant system.  
Do not continue driving!
Engine oil pressure too low.››› page
200» 23
Technical specifications
Advice
Operation
Safety
The essentials

The essentials
Fuses Fig. 48
Fig. 49
Underneath the instrument panel
The fuse box is located behind the storage
compartment
››› Fig. 48 .
In the en gine c
ompartment
Press the locking tabs to release the fuse box
cover ››› Fig. 49
. 
››› in Introduction on page 231
›››
page 231 Battery
The battery is located in the engine compart-
ment
›››
 page 198. It does not require
m aint

enance. It is checked as part of the In-
spection Service.

››› in Important safety warnings for
handling a vehicle battery on page 206
››› page 205 Action in the event of a
puncture
With anti-puncture kit Fig. 50
The anti-puncture kit is located under the
floor panel in the luggage compartment.
Sealing the tyre
●
Unscrew the tyre valve cap and insert. Use
the ››› Fig. 50 1 tool to remove the insert.
Place it on a clean surface.
● Shake the tyre sealant bottle vigorously
››› Fig. 50 10 .
● Screw the inflator tube ››› Fig. 50 3 into
the sealant bottle. The bottle's seal will break
automatically. » 33
Technical specifications
Advice
Operation
Safety
The essentials

Safety
Seat belt protection Fig. 61
Drivers with properly worn seat belts
will not be thrown forward in the event of sud-
den braking Properly worn seat belts hold the occupants
in the proper position. They also help prevent
uncontrolled movements that may result in
serious injury and reduce the risk of being
thrown out of the vehicle in case of an acci-
dent.
Vehicle occupants wearing their seat belts
correctly benefit greatly from the ability of the
belts to absorb kinetic energy. In addition,
the front part of your vehicle and other pas-
sive safety features (such as the airbag sys-
tem) are designed to absorb the kinetic ener-
gy released in a collision. Taken together, all
these features reduce the releasing kinetic
energy and consequently, the risk of injury.
This is why it is so important to fasten seat
belts before every trip, even when "just driv-
ing around the corner". Ensure that your passengers wear their seat
belts as well. Accident statistics have shown
that wearing seat belts is an effective means
of substantially reducing the risk of injury
and improving the chances of survival when
involved in a serious accident. Furthermore,
properly worn seat belts improve the protec-
tion provided by airbags in the event of an
accident. For this reason, wearing a seat belt
is required by law in most countries.
Although your vehicle is equipped with air-
bags, the seat belts must be fastened and
worn. The front airbags, for example, are only
triggered in some cases of head-on collision.
The front airbags will not be triggered during
minor frontal or side collisions, rear-end colli-
sions, rollovers or accidents in which the air-
bag trigger threshold value in the control unit
is not exceeded.
Therefore, you should always wear your seat
belt and ensure that all vehicle occupants
have fastened their seat belts properly before
you drive off!
Safety instructions on using seat
belts –
Always wear the seat belt as described in
this section.
– Ensure that the seat belts can be fastened
at all times and are not damaged. WARNING
● If seat belts are worn incorrectly or not at
all, the risk of severe injuries increases. The
optimal protection from seat belts can be
achieved only if you use them properly.
● Fasten your seat belt before every trip -
even when driving in town. Other vehicle oc-
cupants must also wear the seat belts at all
times, otherwise they run the risk of being in-
jured.
● The seat belt cannot offer its full protection
if the seat belt is not positioned correctly.
● Never allow two passengers (even children)
to share the same seat belt.
● Always keep both feet in the footwell in
front of your seat as long as the vehicle is in
motion.
● Never unbuckle a seat belt while the vehi-
cle is in motion. Risk of fatal injury.
● The seat belt must never be twisted while it
is being worn.
● The seat belt should never lie on hard or
fragile objects (such as glasses or pens, etc.)
because this can cause injuries.
● Do not allow the seat belt to be damaged or
jammed, or to rub on any sharp edges.
● Never wear the seat belt under the arm or
in any other incorrect position.
● Loose, bulky clothing (such as an overcoat
over a jacket) impairs the proper fit and func-
tion of the seat belts, reducing their capacity
to protect. 44

Seat belts
●
The slot in the seat belt buckle must not be
blocked with paper or other objects, as this
can prevent the latch plate from engaging se-
curely.
● Never use seat belt clips, fastening rings or
similar items to alter the position of the belt
webbing.
● Frayed or torn seat belts or damage to the
connections, belt retractors or parts of the
buckle could cause severe injuries in the
event of an accident. Therefore, you must
check the condition of all seat belts at regular
intervals.
● Seat belts which have been worn in an acci-
dent and stretched must be replaced by a
specialised workshop. Renewal may be nec-
essary even if there is no apparent damage.
The belt anchorage should also be checked.
● Do not attempt to repair a damaged seat
belt yourself. The seat belts must not be re-
moved or modified in any way.
● The belts must be kept clean, otherwise the
retractors may not work properly. Head-on collisions and the laws of
physics
Fig. 62
A driver not wearing a seat belt is
thrown forward violently Fig. 63
The unbelted passenger in the rear
seat is thrown forward violently, hitting the
driver who is wearing a seat belt. It is easy to explain how the laws of physics
work in the case of a head-on collision: when
a vehicle starts moving, a type of energycalled “kinetic energy” is created both in the
passengers and inside the vehicle.
The amount of “kinetic energy” depends on
the speed of the vehicle and the weight of
the vehicle and its passengers. The higher
they are, the more energy there is to be “ab-
sorbed” in the event of an accident.
The most significant factor, however, is the
speed of the vehicle. If the speed doubles
from 25 km/h (15 mph) to 50 km/h
(30 mph), for example, the corresponding ki-
netic energy is multiplied by four.
Given that the passengers of the vehicle in
our example do not have their seat belts fas-
tened, in the event of a collision the entire
amount of the passengers' kinetic energy will
be only absorbed by the mentioned impact.
Even at speeds of 30 km/h (19 mph) to
50 km/h (30 mph), the forces acting on bod-
ies in a collision can easily exceed one tonne
(1000 kg). At greater speed these forces are
even higher.
Vehicle occupants not wearing seat belts are
not “attached” to the vehicle. In a head-on
collision, they will move forward at the same
speed their vehicle was travelling just before
the impact. This example applies not only to
head-on collisions, but to all accidents and
collisions.
Even at low speeds the forces acting on the
body in a collision are so great that it is not
»
45Technical specifications
Advice
Operation
Safety
The essentials

Driver assistance systems
(2.5 miles), when fuel consumption will re-
turn to a normal level.
Check tyre pressure
Always make sure the tyres are inflated to the
correct pressures ››› page 208 to save fuel. If
the pr e
ssure is below half bar, fuel consump-
tion may increase by 5%. Due to the greater
rolling resistance, under-inflation
also increa-
ses tyre wear and impairs handling.
Do not use winter tyres all year round as they
increase fuel consumption by up to 10%.
Avoid carrying unnecessary loads
Given that every kilo of extra weight will in-
cr

ease the fuel consumption, it is advisable
to always check the luggage compartment to
make sure that no unnecessary loads are be-
ing transported.
Since the luggage rack increases the aerody-
namic drag of the vehicle, you should remove
it when not needed. This will save, at a speed
of 100-120 km/h (60-75 mph), 12% of fuel.
Save electrical energy
The engine drives the alternator, thereby gen-
erating electricity. This implies that any in-
crease in power consumption also increases
fuel consumption! For this reason, switch off
any unneeded electrical devices. Devices that
use a lot of electricity includes the blower at a high setting, the rear window heating or
the seat heating*. Driver assistance systems
Braking and stability systems Electronic Stability Control (ESC) The ESC helps to improve safety. It reduces
the tendency to skid and improves the stabil-
ity and roadholding of the vehicle. The ESC
detects critical handling situations, such as
vehicle understeer or oversteer, or wheelspin
on the driving wheels. It stabilises the vehi-
cle by braking individual wheels or by reduc-
ing the engine torque. The warning lamp will
flash on the instrument panel when the ESC
is intervening
.
ESC includes the Anti-lock brake system
(ABS), the brake assist system, the traction
control system (ASR), electronic differential
lock (EDL), electronic self-locking*, selective
torque control* and tractor-trailer sway miti-
gation*. ESC also helps stabilise the vehicle
by changing the torque.
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up un-
der braking until the vehicle has reached a
virtual standstill. You can continue to steer
the vehicle even when the brakes are on full.
Keep your foot on the brake pedal and do not
pump the brakes. You will feel the brake ped-
al pulsate while the ABS is working. »
143
Technical specifications
Advice
Operation
Safety
The essentials

Operation
Brake assist system
The brake assist system can reduce the re-
quired braking distance. The braking force is
automatically boosted if you press the brake
pedal quickly in an emergency. You must
keep pressing the brake pedal until the dan-
ger has passed.
Traction control system (ASR)
In the event of wheelspin, the traction control
system reduces the engine torque to match
the amount of grip available. This helps the
car to start moving, accelerate or climb a gra-
dient.
Electronic differential lock (EDL)
When the EDL detects wheelspin, it brakes
the spinning wheel and directs the power to
the other driven wheel. This function is active
up to approximately 100 km/h.
To prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automati-
cally if subjected to excessive loads. The ve-
hicle can still be driven. The EDL will switch
on again automatically when the brake has
cooled down.
Tractor-trailer sway mitigation*
If the vehicle is pulling a trailer, it will control
the following: Tractor-trailers tend to sway.
When the swaying of the trailer is felt by the
vehicle and detected by the ESC, it will auto- matically brake the towing vehicle within the
limits of the system and mitigate the sway.
Tractor-trailer sway mitigation is not available
in all countries.
Electronic self-locking*/Selective torque
control*
When driving around bends, an electronic
self-locking intervenes. The front wheel on
the inside of the curve, or the two inside
wheels, respectively, are selectively braked
as required. This minimises the traction of
the front wheels, allowing you to take bends
with greater precision and neutrality. In cer-
tain circumstances, where roads are wet or
snow-covered, the respective system may not
intervene.
Multi-collision brake
In an accident, the multi-collision brake can
help the driver by braking to avoid the risk of
skidding during the accident, which could
lead to further collisions.
The multi-collision brake works for front, side
or rear accidents, when the airbag control
unit records its activation level and the acci-
dent takes place at a speed of over 10 km/h
(6 mph). The ESC automatically brakes the
vehicle, as long as the accident has not dam-
aged the ESC, the brake hydraulics or the on-
board network.
The following actions control automatic brak-
ing during the accident:
●
When the driver presses the accelerator,
the automatic braking does not take place.
● When the braking pressure through press-
ing the brake pedal is greater than the sys-
tem’s braking pressure the vehicle will brake
automatically.
● Multi-collision braking will not be available
if ESC is malfunctioning. WARNING
● The ESC, ABS, ASR, EDL, electronic self-
locking differential or selective torque control
systems cannot exceed the limits imposed by
the laws of physics. Always bear this in mind,
especially on wet or slippery roads. If you no-
tice the systems cutting in, you should re-
duce your speed immediately to suit the road
and traffic conditions. Do not be encouraged
to take risks by the presence of more safety
systems. If you do, an accident may occur.
● Please remember that the accident risk al-
ways increases if you drive fast, especially in
corners or on a slippery road, or if you follow
too close behind the vehicle in front of you.
The ESC, ABS, brake assist, EDL, electronic
self-locking and selective torque control sys-
tems cannot prevent accidents: risk of acci-
dents! 144

Driver assistance systems
●
Accelerate with caution on slippery surfa-
ces (for example, icy or snow-covered). De-
spite the control systems, the driven wheels
could spin, affecting the stability of the vehi-
cle: risk of accident! Note
● The ABS and ASR will only operate correctly
if the four wheels have identical tyres. Any
differences in the rolling radius of the tyres
can cause the system to reduce engine power
when this is not desired.
● The regulating processes of the systems
can make noises when they intervene.
● If the warning lamp  lights up, or  alter-
natively, there could be a fault ››› page 71. Switching on/off the ESC and ASR
Fig. 146
Centre console: Button for switching
on/off the ESC and ASR The ESC is switched on automatically when
the engine is started, and only works when
the engine is running and includes the ABS,
EDS and ASR systems.
The ASR and ESC function should only be
switched off in situations in which traction is
insufficient, among others:
●
When driving in deep snow or on surfaces
that are not very firm.
● To “free” the vehicle if it gets stuck.
Then switch the ASR and ESC function back
on.
Depending on finishes and versions, it is
possible either to disconnect only the ASR or
else activate ESC Sport mode.
ESC in “Sport” mode
Sport mode can be connected via the Easy
Connect ››› page 81 system menu. The ability
of the E
SC to stabilise the vehicle is limited;
the traction control system (ASR) becomes
disabled ››› .
The control lamp  lights up. For vehicles
with a driver information system*, the driver
will be shown the electronic stability control
(ESC) option: sport. Warning! Limited stability.
Disable ESC “Sport” mode
Through the Easy Connect system menu
››› page 81 . The warning lamp
 w
i
ll switchoff. For vehicles with a driver information sys-
tem*, the driver will be shown the
electronic
stability control (ESC) option: on.
Disable ASR
The Easy Connect system is used to switch off
the ASR ››› page 81. The traction control sys-
tem w

ill be disabled.
The control lamp  lights up. For vehicles
with a driver information system* the driver
will be informed that ASR is disabled.
Activate ASR
The Easy Connect system ››› page 81 is used
to switch on the ASR. The traction control sys-
tem will be enabled.
The control lamp  switches off. For vehicles
with a driver information system* the driver
will be informed that ASR is enabled.
Disconnection of the ESC
In some versions of the model, besides the
traction control system (ASR), the electronic
stability programme (ESC) can also be
switched off.
● Press the button  ››› Fig. 146 for approxi-
mat

ely 1 second to switch off the ASR func-
tion.
● Press the button  ››› Fig. 146
for approxi-
mately 3 seconds to switch off the Electronic »
145
Technical specifications
Advice
Operation
Safety
The essentials

Driver assistance systems
Switching off the Lane Assist system
in the following situations Due to the limits of the Lane Assist system,
switch it off in the following situations:
● When more attention is required of the
driver
● When driving in a sporty style
● In unfavourable weather conditions
● On roads in poor condition
● In areas of road works Note
The Lane Assist system deactivates when
driving below 60 km/h (40 mph). SEAT driving modes (SEAT Drive
Profile)*
Introduction SEAT Drive Profile enables the driver to
choose between four profiles or modes,
Nor-
mal , Sport
, Eco
and Individual
, that modify the
behaviour of various vehicle functions, pro-
viding different driving experiences. In the FR and X-PERIENCE models equipped
with dynamic chassis control and Navi Sys-
tem Plus, the
Comfort profile is also availa-
b l
e.
In the Leon Cupra model the four profiles are Comfort, Sport, Cupra and Individual.
The Individual profile can be configured ac-
cor

ding to personal preferences. The other
profiles are fixed.
Description Depending on the equipment fitted in the ve-
hicle, SEAT Drive Profile can operate on the
following functions:
Engine
Depending on the profile selected, the en-
gine responds more spontaneously or more
in harmony with the movements of the accel-
erator. Additionally, when
Eco
mode is selec-
ted, the Start-stop function is automatically
activated.
In vehicles with automatic transmission, the
gear change points are modified to position
them in lower or higher engine speed ranges.
Additionally, the Eco1)
mode activates the In- ertia function, enabling consumption to be
further reduced.
In manual gearbox vehicles,
Eco1)
mode cau-
ses the gear change recommendation indica-
tions that appear on the instrument panel to
vary, facilitating more efficient driving.
Dynamic chassis control (DCC)
DCC continuously adapts the shock absorb-
ers to the condition of the road and current
driving conditions, according to the pre-set
programme.
In the event of a fault in the DCC, the follow-
ing message is displayed on the instrument
screen Fault: damping setting.
Address
Power steering becomes more robust in Sport
mode to enable a sportier driving style. In the
Leon Cupra the power steering becomes
more robust in Cupra mode.
Air conditioning
In vehicles with Climatronic, this can operate
in eco 1)
mode, especially restricting fuel con-
sumption. »1)
In the Leon Cupra model, Eco mode is selected
through the Individual profile.
169
Technical specifications
Advice
Operation
Safety
The essentials