2015 Seat Altea brake sensor

OperationItemSymbolMeaning of control and warning lampsFurther information
3
Rear fog light switched on›››
page 40
4 Turn signals in operation›››
page 41
5 Engine fault (petrol engine)›››
page 41 
Glow plug system (diesel engines)›››
page 41
6 Main beam switched on›››
page 41
7 Soot accumulation in the diesel engine particulate filter›››
page 41
8 ABS system fault›››
page 41
9 Windscreen washer fluid level›››
page 42
10 Alternator fault›››
page 42
11 Fasten seat belts!›››
page 11
12 Brake pad worn›››
page 42
13 Tyre pressure›››
page 43
14 Airbag or belt tensioner system fault or airbag disabled›››
page 16 ››› page 19
15 Bulb defective›››
page 44
16 Brake fluid required or
brake system fault›››
page 44
17 
Red:
Engine oil pressure
›››
page 44Yellow:
If flashing: engine oil sensor faulty
If it remains lit: insufficient engine oil
18 Handbrake on›››
page 123 36

Operation
Brake system*  Situations in which the warning lamp lights
up 
● the br ak
e fluid level is too low
››› page 172.
The ins

trument panel displays the following
message 1)
: STOP BRAKE FLUID INSTRUCTION
MANUAL

.
● there is a fault in the brake system.
The instrument panel displays the following
message 1)
: BRAKE SYSTEM FAULT INSTRUC-
TION MANUAL .
This warning lamp can light up together with
the ABS system warning lamp. WARNING
● Before opening the bonnet, read and ob-
serve the warnings on ››› page 163.
● If the brake warning lamp does not go out,
or if it lights up when driving, the brake fluid
level in the reservoir ››› page 172, Brake fluid
is too low. Risk of accident. Stop the vehicle
and do not drive on. Obtain technical assis-
tance.
● If the brake warning lamp lights up  to-
gether with the ABS lamp  this could be
due to an ABS fault. This could cause the rear wheels to lock quickly when you brake. This
could cause the rear to break away. Risk of
skidding. Stop the vehicle and seek technical
assistance.
Handbrake 
This lamp lights up when the handbrake is
applied.
If you drive faster than 6 km/h (4 mph) with
the handbrake on, the following message will
appear on the instrument panel display
1)
:
HANDBRAKE ON. You will also hear an acous-
tic warning signal ››› page 123.
Bulb defect*  The  warning lamp lights up when there is
a fault in the turn signals, headlights, side
lights and fog lights, e.g. in the left head-
light.
The instrument panel displays the following
message
1)
: LEFT FULL BEAM FAULTY .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 166.
The instrument panel displays the following
message 1)
: STOP ENGINE OIL PRESSURE IN-
S TRUCTION MANU

AL.
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 168 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. 1)
Depending on the version of the model.
44

Driver assistance systems
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.
For example:
● 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. Steering manoeuvre recommendations
This is a complementary safety function in-
cluded in the ESC. This function aids the driv-
er to better stabilize the vehicle in a critical
situation. For example, in case of sudden
braking on a surface with varied adherence,
the vehicle will tend to destabilise its trajec-
tory to the right or to the left. In this case, the
ESC recognises the situation and assists the
driver with a counter steering manoeuvre
from the power steering.
This function simply provides the driver with
a recommended manoeuvre in critical situa-
tions.
The vehicle does not steer itself with this
function, the driver has full control of the ve-
hicle at all times.
WARNING
● Remember that not even the ESC can 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,
the warning light for ABS lights up
››› page 41 .
At s
peeds of up to approximately 80 km/h
(50 mph), it is able to balance out differences
in the speed of the driven wheels of approxi-
mately 100 rpm/min caused by a partially
slippery road surface. It does this by braking
the wheel which has lost traction and distrib-
uting more driving force to the other driven
wheel via the differential.
To prevent the disc brake of the braking
wheel from overheating, the EDL cuts out au-
tomatically if subjected to excessive loads.
The vehicle will continue to function normally »
135
Technical specifications
Advice
Operation
Safety

Operation
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. 133 .
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 not be on a steep gradi-
ent.
● The vehicle must not be in reverse.
● A trailer must not be connected. ●
The temperature of the passenger compart-
ment must be within comfort limits (button A/C
11
››› Fig. 120 should be selected).
● The w ind

screen de-mist function must be
off.
● If not
, it requires an increase in airflow 10 ›››
Fig. 120 for more than three presses.
● 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).
● The Parking aid system (Park Assist*) must
not be activated.
Start-Stop function interruption
In the following situations, the Start-Stop
function will be interrupted and the engine
will automatically start:
● The vehicle starts moving.
● The brake pedal is pressed several times in
a row.
● The battery has been discharged excessive-
ly.
● The Start-Stop System is manually deacti-
vated.
138

Index
Index
A
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Acoustic warning . . . . . . . . . . . . . . . . . . . . . . . . . 120
Adaptive headlights . . . . . . . . . . . . . . . . . . . . . . . . 80
Adjusting the seat belt height . . . . . . . . . . . . . . . . 16
AFS (cornering lights) . . . . . . . . . . . . . . . . . . . . . . 80
Airbag covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Airbags description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . 17, 20 activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
functioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
head-protection airbags . . . . . . . . . . . . . . . . . . 22
side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Air conditioner 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . 112
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Air conditioner automatic mode 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . 113
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Air recirculation mode 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . 115
Manual air conditioner . . . . . . . . . . . . . . . . . . . 111
Alarm system Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Alcantara . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
All-wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Alternator Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Anti-lock brake system . . . . . . . . . . . . . . . . . . . . . 136 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Anti-theft alarm system . . . . . . . . . . . . . . . . . . . . . 68
Interior monitoring . . . . . . . . . . . . . . . . . . . . . . . 70
Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Tow-away protection . . . . . . . . . . . . . . . . . . . . . . 70
Anti-theft wheel bolts . . . . . . . . . . . . . . . . . . . . . 184
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Aquaplaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Aspects to note before setting off . . . . . . . . . . . . . . 5
ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Audible warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Automatic anti-dazzle interior rear vision mirror Activating the anti-dazzle function . . . . . . . . . . 86
Deactivating the anti-dazzle function . . . . . . . . 86
Automatic car wash tunnel . . . . . . . . . . . . . . . . . 149
Automatic gearbox Kick-down feature . . . . . . . . . . . . . . . . . . . . . . . 130
Automatic gearbox/DSG automatic gearbox . . . 127
Automatic lighting . . . . . . . . . . . . . . . . . . . . . . . . . 76
Automatic windscreen wiping . . . . . . . . . . . . . . . . 84
Automatic wipe with rain sensor . . . . . . . . . . . . . . 84
Auxiliary audio input: AUX-IN . . . . . . . . . . . . . . . . 99
B Ball coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Winter conditions . . . . . . . . . . . . . . . . . . . . . . . 173
Before setting off . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Belt tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Biodiesel fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 Boot hatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Emergency opening . . . . . . . . . . . . . . . . . . . . . 194
Boot lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Emergency opening . . . . . . . . . . . . . . . . . . . . . 194
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Brake pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Brake pedal Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Worn brake pads . . . . . . . . . . . . . . . . . . . . . . . . . 42
Brake servo . . . . . . . . . . . . . . . . . . . . . . . . . 123, 138
Brake system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Brake servo . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Bulb defect Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77, 120
C
Car care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Car care products . . . . . . . . . . . . . . . . . . . . . . . . . 148
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . 131
CCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
CD changer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Central lock button Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Automatic locking system for involuntary un-locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Automatic speed-dependent locking and un- locking system . . . . . . . . . . . . . . . . . . . . . . . . 64
223