brake sensor SKODA OCTAVIA 2005 1.G / (1U) Owner's Manual

Instruments and Indicator/Warning Lights
28
Three successive warning signals will sound if a red symbol appears.
If several operational faults of priority 1 exist, the symbols appear one
after the other and are each illiminated for about 5 seconds.
Yellow symbols
A yellow symbol signals a warning.
Check the relevant function as soon as possible.
The meaning of the yellow symbols: One
warning signal will sound if a yellow symbol appears.
If several operational faults of priority 2 exist, the symbols appear one
after the other and are each illiminated for about 5 seconds.
Settings
Fig. 17 Information
display: Fuel level low
Fuel level low⇒ page 36
Check engine oil level,
engine oil sensor faulty⇒page 38
Brake pad worn⇒page 36
Washer fluid level low⇒page 36
Fig. 18 Setting the
clock
s24s.book Page 28 Thursday, November 24, 2005 12:27 PM

Instruments and Indicator/Warning Lights
38
Engine oil level* 
Warning light  lights up
If the warning light
 lights up, the quantity of oil in the engine is probably
too low. Check as soon as possible the oil level or top up ⇒page 251 with
engine oil.
A peep sounds as an additional warning signal.
The following text will be displayed in the information display*:
Check oil level!
The warning light will go out if the bonnet is left open for more than 30
seconds. If no engine oil has been replenished, the warning light will come
on again after driving about 100 km.
Warning light
 flashes
A fault on the engine oil level sensor is indicated additionally by an audible
signal and the warning light coming on several times after the ignition has
been switched on.
In this case have the engine inspected without delay by a specialist
garage.
The following text will be displayed in the information display*:
Oil sensor workshop!
Tyre inflation pressure*
The warning light  lights up, if there is a substantial drop in inflation
pressure in one of the tyres. Reduce the speed and check or correct as
soon as possible the inflation pressure in the tyres ⇒page 264.
A peep sounds as an additional warning signal. If the warning light flashes, there is a system fault. Visit the nearest
specialist garage and have the fault rectified.
Further information about tyre pressure-control system
⇒page 220.
WARNING
•When the warning light  lights up, immediately reduce the
speed and avoid sudden steering and brake manoeuvres. Please
stop the vehicle without delay at the nearest possible stop and
inspect the tyres and their inflation pressures.
•Under certain circumstances (e.g. sporty style of driving, wintry
or unpaved roads) the warning light  can be delayed or does not
light up at all.
Note
If the battery has been disconnected, the warning light  comes on after
switching on the ignition. The warning light must go out after driving a
short distance.
Selector lever lock* 
If the warning light  lights up, operate the brake pedal. This is neces-
sary, in order to be able to move the selector lever out of the position P or
N .
Antilock brake system (ABS) 
The warning light  shows the functionality of the ABS.
s24s.book Page 38 Thursday, November 24, 2005 12:27 PM

Starting-off and Driving
146
•You should therefore satisfy yourself, before reversing, that
there is no small obstacle, such as a rock, thin post, trailer drawbar
etc., in front or behind your vehicle. Such an obstacle might not be
within the range detected by the sensors.
Caution
In order to ensure the correct functioning of the parking aid, only a licence
plate frame approved by the manufacturer Škoda for your vehicle type
should be installed at the front bumper. Un-approved licence plate frames
can project into the detection range ⇒page 145, fig. 134 . A non-proved
licence plate frame could be recognized as an obstacle by the system and
this would lead to an incorrect warning. If you have any questions, please
contact a specialist garage.
Note
•Only the front parking aid operates if you are towing a trailer (applies
only to models which feature a factory-fitted towing device*).
•If a warning signal sounds for about 3 seconds after activating the
system and there is no obstacle close to your car, this indicates a system
fault. The fault is confirmed additionally when the symbol
 flashes in the
button ⇒page 145, fig. 133 . Have the fault rectified by a specialist work-
shop.
•The sensors must be kept clean and free of ice to enable the parking
aid to operate properly.
•If the parking aid is activated and the selector lever of the automatic
gearbox is in the position , warning signal indicates interruption (vehicle
can no longer move).
Cruise control system (CCS)*
Introduction
The cruise control system (CCS) maintains a constant speed, more than
30 km/h (20 mph), once it has been set, without you having to depress the
accelerator pedal. This is only possible within the range which is permitted
by the power output and braking power of the engine. The cruise control
system makes it possible - particularly on long journeys - for you to rest
your “accelerator foot”.
WARNING
•The cruise control system must not, for safety reasons, be used
in dense traffic or on unfavourable road surfaces (such as icy
roads, slippery roads or loose chippings) - risk of accident!
•In order to prevent unintentional use of the cruise control
system, always switch off the system after use.
Note
•Models fitted with a manual gearbox: Always depress the clutch pedal
if you switch on the cruise control system when the gearbox is in Neutral.
Otherwise the engine can rev up unintentionally.
•The cruise control system is not able to maintain a constant speed
when driving on steep downhill sections. The weight of the vehicle
increases the speed at which it travels. One should shift down in good
time to a lower gear or slow the vehicle down by applying the foot brake.
•It is not possible on vehicles fitted with an automatic gearbox to switch
on the cruise control system if the selector lever is in the position P, N or
R .
WARNING (continued)
AB
AP
s24s.book Page 146 Thursday, November 24, 2005 12:27 PM

Intelligent Technology213
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Driving Tips
Intelligent Technology
Electronic stability programme (ESP)*
General
General
The ESP aids you maintain control of your vehicle in situations in border-
line driving situations such as when negotiating a curve too fast. The risk
of skidding is reduced and your car thus offers greater driving stability
depending on the conditions of the road surface. This occurs at all speeds.
The following systems are integrated into the electronic stability
programme:
•Electronic Differential Lock (EDL),
•Traction control system (TCS),
•Driver-steering recommendation,
•Antilock brake system (ABS),
•Brake Assist,
•Uphill-Start off-Assist.
Operating principle
The ESP switches on automatically when the engine is started and then
conducts a self-test. The ESP control unit processes data from the indi-
vidual systems. It also processes additional measurement data which are
supplied by highly sensitive sensors: the rotational velocity of the vehicle
about its vertical axis, the lateral acceleration of the vehicle, the braking
pressure and the steering angle.
The direction which the driver wishes to take is determined based on the
steering angle and the speed of the vehicle and is constantly compared
with the actual behaviour of the vehicle. If differences exist, such as the
car beginning to skid, the ESP will automatically brake the appropriate
wheel.
The car is stabilised again by the forces which take effect when the wheel
is braked. Intervention into the brake system takes place primarily on the
outer front wheel of a vehicle which tends to oversteer (tendency for the
rear of the vehicle to break away) while occurs this is on the inner rear
wheel of a vehicle which tends to understeer (tendency to shift out of the
curve). This braking control cycle is accompanied by noises.
Fig. 180 ESP switch
s24s.book Page 213 Thursday, November 24, 2005 12:27 PM

Intelligent Technology
214
The ESP operates in combination with the ABS ⇒page 218, “Antilock
brake system (ABS)”. If there is a fault in the ABS system, the ESP also
does not operate.
The ESP warning light ⇒page 40 lights up in the instrument cluster when
there is a fault on the ESP.
Switching off
You can switch the ESP off and on again as you wish, by pressing the
button ⇒page 213, fig. 180 . The ESP warning light ⇒page 40 lights up in
the instrument cluster when the ESP is switched off.
The ESP should normally always be switched on. It may be good practice
in certain exceptional cases, such as when you wish to have wheel slip,
to switch off the system.
Examples:
•when driving with snow chains
•when driving in deep snow or on a loose surface
•when it is necessary to rock a car free when it has become stuck
then you should switch on the ESP again.
WARNING
It is also not possible for the E SP to overcome the physical limits
of the vehicle. Even if a vehicle fitted with ESP you should still
always adapt your style of driving to the condition of the road
surface and the traffic situation. This particularly applies when
driving on slippery and wet roads. The increased safety offered
must not tempt you to take greater risks than otherwise - risk of an
accident!
Note
•All four wheels must be fitted with the same tyres in order to achieve
problem-free operation of the ESP. Differing rolling circumferences of the
tyres can lead to an undesirable reduction in the engine output.
•Changes to vehicle (e.g. on engine, on the brakes, on chassis or other
assignment of tyres and wheels) can influence the function of the ESP
⇒ page 270, “Accessories, changes and replacement of parts”.
Electronic Differential Lock (EDL)*
The electronic differential lock prevents an individual
wheel from slipping.
Models fitted with ESP are equipped with electronic differential lock (EDL).
General
The EDL makes it much easier, and sometimes at all possible, to start off,
accelerate and climb a steep hill when the conditions of the road surface
are unfavourable.
Operating principle
The EDL is activated automatically, that is without any action on the part
of the driver. It monitors the speeds of the driven wheels with the aid of the
ABS sensors. Should only one drive wheel begin spinning on a slippery
surface there will be an appreciable difference in the speed of the driven
wheels. The EDL function brakes the slipping wheel and the differential
transmits a greater driving force to the other driven wheel. This control
process is also accompanied by noises.
Overheating of the brakes
The EDL switches off automatically if unusually severe stresses exist in
order to avoid excessive heat generation in the disc brake on the wheel
s24s.book Page 214 Thursday, November 24, 2005 12:27 PM

Intelligent Technology215
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
which is being braked. The vehicle can continue to be driven and has the
same characteristics as a vehicle not fitted with EDL.
The EDL switches on again automatically as soon as the brake has cooled
down.
WARNING
•Depress the accelerator carefully when accelerating on
uniformly slippery road surfaces, such as ice and snow. The driven
wheels might still spin despite the EDL and affect the stability of
the vehicle - risk of an accident!
•You should always adapt your style of driving to the condition
of road surface and to the traffic situation even when your vehicle
is fitted with EDL. The increased safety offered must not tempt you
to take greater risks than otherwise - risk of an accident!
Note
•If the ABS or ESP warning light comes on, this may also indicate a fault
in the EDL. Please have the car inspected as soon as possible by a
specialist garage.
•Changes to vehicle (e.g. on engine, on the brakes, on chassis or other
assignment of tyres and wheels) can influence the function of the EDL
⇒ page 270, “Accessories, changes and replacement of parts”.
Traction control system (TCS)
The traction control system prevents the driven wheels
from spinning when accelerating.
General
The TCS makes it much easier, and sometimes at all possible, to start off,
accelerate and climb a steep hill when the conditions of the road surface
are unfavourable.
Operating principle
The TCS switches on automatically when the engine is started and then
conducts a self-test. The system monitors the speeds of the driven wheels
with the aid of the ABS sensors. If the wheels are spinning, the force trans-
mitted to the road surface is automatically adapted by reducing the engine
speed. This occurs at all speeds.
The TCS operates in combination with the ABS ⇒page 218, “Antilock
brake system (ABS)”. The TCS will not function if a fault exists in the ABS
system.
Fig. 181 TCS switch
s24s.book Page 215 Thursday, November 24, 2005 12:27 PM

Intelligent Technology
220
Tyre inflation pressure-control system*
The tyre inflation pressure-control system compares with the aid of the
ABS sensors the speed and also the rolling circumference of the individual
wheels. If the rolling circumference of a wheel is changed, the warning
light
 lights up in the dash panel insert ⇒page 38. The rolling circumfer-
ence of the tyre can change if:
•the tyre inflation pressure is too low,
•the structure of the tyre is damaged,
•the vehicle is loaded on one side,
•the wheels of an axle are loaded heavily (e.g. when towing a trailer or
when driving uphill or downhill),
•snow chains are mounted,
•the temporary spare wheel is mounted,
•one wheel per axle was changed. Basic setting of tyre inflation pressure-control system
After changing the tyre inflation pressures or after changing one or several
wheels, the button for the tyre inflation pressure-control system must be
pressed long enough until an acknowledegment tone sounds when the
ignition is switched on.
•Inflate all tyres to the specified inflation pressure
⇒page 264.
•Switch on the ignition.
•Press the button   ⇒ fig. 182 long enough, until an acknowledg-
ment tone sounds, which confirms the storage of the basic values. As long
as the button
  is pressed, the warning light lights up in the instru-
ment .
Warning light
 lights up
If the tyre inflation pressure of at least one wheel is insufficiently inflated
in comparison to the stored basic value, the warning light
 ⇒ lights
up.
Warning light
 flashes
If the warning light flashes, there is a system fault. Have the vehicle
inspected by your nearest specialist garage.
WARNING
•When the warning light  lights up, immediately reduce the
speed and avoid sudden steering and brake manoeuvres. Please
stop the vehicle without delay at the nearest possible stop and
inspect the tyres and their inflation pressures.
•The driver is responsible for the correct tyre inflation pressures.
For this reason, the tyre inflation pressures must be checked regu-
larly.
•Under certain circumstances (e.g. sporty style of driving, wintry
or unpaved roads) the warning light  can be delayed or does not
light up at all.
Fig. 182 Button for
setting the tyre infla-
tion pressure control
value
s24s.book Page 220 Thursday, November 24, 2005 12:27 PM

Fuses and light bulbs
292
Certain electrical components are only standard on certain vehicle model
versions or only suppliable as optional equipment for certain models.
No.Power consumerAmperes
F1Control unit for convenience functions20
F2Windshield wiper lever and turn signal light lever5
F3Measuring circuit5
F4Valves for ABS30
F5Control unit for automatic gearbox15
F6Instrument cluster5
F7Not assigned
F8Radio15
F9Phone5
F10Engine control unit, Main relay5
F11Control unit for auxiliary heating20
F12Control unit for CAN databus5
F13Engine control unit25/30
F14Ignition20
F15Lambda probe, NOx-sensor, Fuel pump relay15
F16Pump for ABS30
F17Horn15
F18Amplifier for digital sound processor30
F19Front window wiper30
F20Not assigned5
F21Lambda probe15
F22Clutch pedal switch, brake pedal switch5
F23Secondary air pump
Air mass meter
Fuel high pressure pump5
10
15
F24Activated charcoal filter, exhaust gas recirculation
valve10
F25Right lighting system40
F26Left lighting system40
F27Secondary air pump
Preglowing40
50
F28Power suppy terminal 15, Starter40
F29Power supply terminal 3050
F30Te r m i n a l Xa)40
a)In order not to drain the battery unnecessarily when starting the engine, the elec-
trical components of this terminal are automatically switched off.
No.Power consumerAmperes
s24s.book Page 292 Thursday, November 24, 2005 12:27 PM