brake sensor Seat Ibiza ST 2014 Owner's manual

The essentials
Warning lamps On the instrument panel Fig. 27
Sym-
bolMeaning of control and warning lampsFurther in-formation 
Engine fault (petrol engine)›››
page
58 
Glow plug system (diesel en-
gines)
If lit up:
glow plug system ac-
tive
If flashing: engine fault
››› page
58 
Soot accumulation in the die-
sel engine particulate filter›››
page
59
Sym-
bolMeaning of control and warning lampsFurther in-formation 
Red:
Engine oil pressure
›››
page
59Yellow:
If flashing: engine oil sensor
faulty
If it remains lit: insufficient
engine oil 
Bulb defective›››
page
59
Sym-
bolMeaning of control and warning lampsFurther in-formation 
Level of liquid for washing
windows too low›››
page
59 
Rear fog light switched on›››
page
59 
Seat belt warning lamp*›››
page
35 
Anti-lock brake system (ABS)
*›››
page
59 18

Dash panel
Control lamp  flashes
If a f
ault develops in the engine management
system while you are driving, the glow plug
system lamp will flash 
. Take the vehicle to
a specialised workshop as soon as possible
and have the engine checked.
Soot accumulation in the diesel
engine particulate filter*  If the control lamp
 lights up you should
help the filter clean itself by driving in the ap-
propriate manner.
To do this, drive about 15 minutes in fourth
or fifth gear (automatic gearbox: S gear
range) at a minimum speed of 60 km/h
(37 mph), with the engine running at approxi-
mately 2,000 rpm. In this way, the soot build
up in the filter is burned. When cleaning is
successful, the control lamp turns off.
If the lamp  does not turn off, or the three
lamps turn on (particulate filter , fault in
the emission control system  and glow
plugs ), drive the vehicle to a specialised
workshop and have the fault repaired at the
earliest opportunity. WARNING
● Always drive according to the road weather
conditions, the terrain and traffic. Driving rec- ommendations should never lead to illegal
manoeuvres in surrounding traffic.
●
The diesel engine particulate filter may
reach extremely high temperatures; in this
case the vehicle should be parked so that it
does not enter into contact with highly flam-
mable materials underneath the vehicle. Oth-
erwise there is a risk of fire. Engine oil pressure
 If this warning lamp
 is red it indicates
that the engine oil pressure is too low.
If this warning symbol starts to flash, and is
accompanied by three audible warnings,
switch off the engine and check the oil level.
If necessary, add more oil ››› page 170.
If the warning lamp flashes although the oil
level is correct, stop driving. Do not even run
the en gine at

idle speed! Obtain technical as-
sistance.
Checking the oil level 
If the warning lamp is yellow  the engine
oil level should be checked as soon as possi-
ble. Top up the oil ››› page 170 at the next
opportunity.
Oil level sensor faulty* 
If the  yellow warning lamp flashes, take
the vehicle to a specialised workshop to have the oil level sensor checked. Until then it is
advisable to check the oil level every time
you refuel.
Bulb defect*  The 
warning lamp lights up when there is
a f

ault on the turn signals, headlights, side
lights and fog lights.
Washer fluid*  This warning lamp lights up to indicate that
the windscreen washer level is very low.
This serves as a reminder to fill up the reser-
voir at the earliest opportunity
›››
page 174.
Rear fog light*  The warning lamp 
lights up when the rear
fog light is switched on. For further informa-
tion see ›››
page 90 .
Anti-loc k

brake system (ABS)*  The warning lamp  lights up for a few sec-
onds when the ignition is switched on. It
goes out again after the system has run
through an automatic test sequence.
»
59
Technical specifications
Advice
Operation
Safety
The essentials

Driver assistance systems
Driver assistance systems
Braking and stability systems Electronic Stability Control (ESC)* Fig. 140
Detailed view of the dash panel: ESC
switch. This Electronic Stability System reduces the
risk of skidding and improves the vehicle's
stability and ability to hold the road.
The Electronic Stability Control (ESC) contains
the electronic differential lock (EDL) and the
traction control system (ASR). The ESC works
together with the ABS. Both control lamps
will light up if the ESC or ABS systems are
faulty.
The ESC system is started automatically
when the engine is started. The ESC system is always active and cannot
be switched off. The ESC switch only switches
the ASR off.
The ASR can be deactivated when wheel spin
is desirable
››› page 141 .
F or e
xample:
● When driving with snow chains.
● When driving in deep snow or on loose sur-
faces.
● When the vehicle is stuck, to rock it back-
wards and forwards.
Press the button to switch the ASR back on
when you no longer need wheel spin.
Electronic Stability Control (ESC)*
The ESC reduces the risk of skidding by brak-
ing the wheels individually.
The system uses the steering wheel angle
and road speed to calculate the changes of
direction desired by the driver, and constant-
ly compares them with the actual behaviour
of the vehicle. When irregularities occur, for
example, if the vehicle begins to skid, the
ESC brakes the appropriate wheel automati-
cally.
The forces acting on the braked wheel bring
the vehicle back to a stable condition. If the
vehicle tends to oversteer (the rear end
slides out), the system will act on the front
wheel on the outside of the turn. WARNING
● Do not forget that the electronic stability
control ESC cannot defy the laws of physics.
This should be kept in mind, particularly on
slippery and wet roads and when towing a
trailer.
● Always adapt your driving style to suit the
condition of the roads and the traffic situa-
tion. The greater safety provided by the ESC
should not encourage you to run any risks. CAUTION
● To ensure that the ESC works correctly, all
four wheels must be fitted with the same
tyres. Any differences in the rolling radius of
the tyres can cause the system to reduce en-
gine power when this is not desired.
● Any modifications made to the vehicle (for
example, to the engine, brake system, run-
ning gear or to the combination of wheels
and tyres) may affect the operation of the
ABS, EDL, ESC and ASR. Electronic differential lock (EDL)*
EDL helps the vehicle to start moving, accel-
erate and climb a gradient in slippery condi-
tions where this may otherwise be difficult or
even impossible.
It uses the ABS sensors to monitor the speed
of the driven wheels. In case of an EDL fault,
»
139Technical specifications
Advice
Operation
Safety
The essentials

Operation
XDS* When taking a curve, 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 (out-
er wheel) receives less drive torque than the
inner wheel. This may mean that in certain
situations the torque delivered to the inner
wheel is too high, causing the wheels to
spin. On the other hand, the outer wheel is
receiving 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's
desired trajectory is much more precise,
The XDS system works in combination with
the ESC and is always active, even when ASR
traction control is disconnected.
Brake servo The brake servo increases the pressure you
apply to the brake pedal. It works
only when
the engine is running . If the brake servo is not functioning, e.g. due
to a malfunction, or if the vehicle is being
towed, you will have to press the brake pedal
considerably harder to make up for the lack
of servo assistance.
WARNING
The braking distance can also be affected by
external factors.
● Never let the vehicle coast with the engine
switched off. Failure to follow this instruction
could result in an accident. The braking dis-
tance is increased considerably when the
brake servo is not active.
● If the brake servo is not working, for exam-
ple when the vehicle is being towed, you will
have to press the brake pedal considerably
harder than normal. Start-Stop System*
Description and operation The Start-Stop function stops the engine
when the vehicle is stopped and starts it au-
tomatically when required.
– When the vehicle is stopped, put it in neu-
tral and release the clutch pedal. The en-
gine will stop.
– When the clutch pedal is pressed, the en-
gine starts again. –
The instrument panel display shows infor-
mation about the status of the Start-Stop
function ››› Fig. 142 .
St ar
t-Stop function conditions
● The driver seat belt must be buckled.
● The bonnet must be closed.
● The engine must be at operating tempera-
ture.
● The steering wheel must be straight.
● The vehicle must be on flat ground.
● The vehicle must not be in reverse.
● A trailer must not be connected.
● The temperature of the interior must be
within the comfort limits ( A/C button should
be selected).
● The windscreen de-mist function must be
off.
● If in an increase in airflow is not requested.
● The t emper

ature must not be set to HI or
LO.
● The driver door must be closed.
● The diesel particulate filter must not be in
regeneration mode, for diesel engines.
● The battery charge must not be low for the
next start.
● Battery temperature must be between -1 °C
(+30 °F) and +55 °C (+131 °F).
142