2011 SKODA OCTAVIA wheel

Function of the front airbags
Risk of injury to the head and chest area is reduced by fully inflated
airbags.
Fig. 123 Inflated airbags
The airbag system is designed in such a way that the airbags for the driver and
front passenger are deployed in the event of a violent frontal collision.
In certain accident situations, the front, side and head airbag are simultaneously
deployed.
If the airbags are deployed, the airbags are filled with a propellant gas and inflated
in front of the driver and front passenger ⇒ fig. 123 . The airbags inflate in fractions
of a second and at a high speed in order to be able to offer that additional protec-
tion in the event of an accident. The forward movement of the driver and of the
front passenger is cushioned when they make contact with the fully inflated air-
bag and the risk of injury to head and chest is thus reduced.
The specially developed airbag allows the gas to flow out of the inflated airbag in
a controlled manner (depending on the load of the particular car occupant) in or-
der to cushion head and chest areas. The airbag then deflates subsequently to
such an extent, after an accident, to again provide a clear view forward.
A grey white, non harmful gas is released when airbag is inflated. This is perfectly
normal and is not an indication of a fire in the vehicle.
The airbag develops enormous forces when triggered, which can lead to injuries if
the sitting position or seated position is not correct ⇒  in Important safety infor-
mation regarding the front airbag system
on page 141. Important safety information regarding the front airbag system Correct use of the airbag system considerably reduces the risk of
injury! Fig. 124 Safe distance to steering wheel
WARNING
● Never transport children on the front seat of a vehicle without using a
proper restraint system. If airbags are deployed in the event of an accident,
the child might suffer severe or even fatal injuries!
● For the driver and front passenger it is important to maintain a distance of
at least 25
cm from the steering wheel or dash panel ⇒ fig. 124. Not maintain-
ing this minimum distance will mean that the airbag system will not be able to
properly protect you - hazard! The front seats and the head restraints must al-
ways also be correctly adjusted to match the body size of the occupant.
● It is essential to always switch off ⇒ page 145
, Deactivating an airbag the
front passenger airbag when attaching a child safety seat on the front pas-
senger seat where the child is seated with its back facing in direction of travel
(in some countries also when the child is facing the direction of travel). If this
is not done, there is a risk of the child suffering severe or even fatal injuries if
the front passenger airbag is deployed. In certain countries national legal pro-
visions also require that the side or head passenger airbags be deactivated.
When transporting a child on the front passenger seat, please comply with the
appropriate national regulations regarding the use of child safety seats.
● There must not by any further persons, animals or objects positioned be-
tween the front seated occupants and the deployment area of the airbag. £ 141
Airbag system Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

WARNING (Continued)
● The steering wheel and the surface of the airbag module in the dash panel
on the passenger side must not be stuck onto, covered or modified in any oth-
er way. These parts should only be cleaned with a dry cloth or a cloth mois-
tened with water. No objects such as cup holders, mobile phone mounts, etc.
may be attached to the covers of the airbag modules or be located within the
immediate area.
● No modifications of any kind may be made to parts of the airbag system.
Any work on the airbag system including installing and removing system com-
ponents because of other repair work (e.g. removing the steering wheel) must
only be carried out by a specialist garage.
● Never carry out changes on the front bumper or on the body.
● Never place any objects on the surface of the front passenger airbag mod-
ule in the dash panel. 
Side airbags Description of side airbags The side airbag increases protection of the passenger concerned in
the case of a side impact.
Fig. 125 Driver seat: Installation posi-
tion of airbag
The side airbags are housed in the upholstery of the seat backrests of the front
seats and are marked with the lettering “AIRBAG” ⇒ fig. 125 on the middle part.
The side airbag system in combination with the three-point seat belts, offers addi-
tional protection for the upper area of the body (chest, stomach and pelvis) of the
occupants of the vehicle in the event of severe side collisions ⇒ page 143. Apart from their normal protective function, a further task of the
seat belts is to
also hold the driver and front passenger in a correct seated position in the event
of a side collision so as to enable the side airbags to offer the maximum protec-
tion.
You should therefore always fasten the seat belts, not only because this is re-
quired by law, but also for safety reasons and for your own protection. 
Function of the side airbags Risk of injury to the upper part of the body is reduced by fully infla-
ted side airbags.
Fig. 126 Inflated side airbag
When the side airbags are deployed, the head airbag and the belt tensioner are
also automatically deployed on the relevant side .
In certain accident situations, the front, side and head airbag are simultaneously
deployed.
If an airbag is deployed, the airbag is filled with gas. The airbags inflate in frac-
tions of a second and at a high speed in order to be able to offer that additional
protection in the event of an accident ⇒

 fig. 126 .
A grey white, non harmful gas is released when airbag is inflated. This is perfectly
normal and is not an indication of a fire in the vehicle.
The load of the occupants is cushioned when plunging into the fully inflated air-
bag and the risk of injury to the entire upper body (chest, stomach and pelvis) is
reduced on the side facing the door. 142
Airbag system

Important safety information on the head airbag
Correct use of the airbag system considerably reduces the risk of
injury! WARNING
● It is essential to always switch off ⇒ page 145 , Deactivating an airbag the
front passenger airbag when attaching a child safety seat on the front pas-
senger seat where the child is seated with its back facing in direction of travel
(in some countries also when the child is facing the direction of travel). If this
is not done, there is a risk of the child suffering severe or even fatal injuries if
the front passenger airbag is deployed. When transporting a child on the front
passenger seat, please comply with the appropriate national regulations re-
garding the use of child safety seats.
● There must not be any objects in the deployment area of the head airbags
which might prevent the airbags from inflating properly.
● Only hang light items of clothing on the clothes hooks to the vehicle. Nev-
er leave any heavy or sharp-edged objects in the pockets of the items of cloth-
ing. In addition, it is not permitted to use clothes hangers for hanging up
items of clothing.
● The airbag control unit operates together with the sensors, which are at-
tached in the front doors. For this reason no adjustments must be carried out
at the doors as well as at the door panels (for example additional installation
of loudspeakers). Resulting damages can have a negative affect on the opera-
tion of the airbag system. All work on the front doors and their panels must
only be carried out by a specialist garage.
● There must not be any other persons (e.g. children) or animals between
the car occupant and the deployment area of the head airbag. In addition,
none of the occupants should lean their head out of the window when driving,
or extend their arms and hands out of the window.
● The sun visors must not be swivelled to the side windows into the deploy-
ment area of the head airbags if any objects, such as ball-point pens etc. are
attached to them. This might result in injuries to the occupants if the head air-
bag is deployed.
● Installing impermissible accessories in the area of the head airbags may
considerably impair the protection offered by the head airbag in the event of it
being deployed. When the deployed head airbag is inflated, parts of the acces- WARNING (Continued)
sories fitted may in certain circumstances be thrown into the interior of the
car and cause injuries to the occupants ⇒

 page 197, Accessories, changes and
replacement of parts.
● Any work on the head airbag system including installing and removing sys-
tem components because of other repair work (e.g. removing headliner) must
only be carried out by a specialist garage. 
Deactivating an airbag Deactivating airbags If any airbags have been deactivated, switch them on again as
soon as possible so that they are able to again provide their proper
protection.
There is the technical means installed within your vehicle to switch off the front,
side or head airbag (take out of commission).
This is why you should have the deactivation of the airbags carried out by a spe-
cialist garage.
On vehicles equipped with the switch for deactivation of the airbags, you can de-
activate the front passenger airbag by means of this switch ⇒

 page 146.
Deactivation of airbags is envisaged only for particular instances, such as if:
● You must in exceptional cases use a child seat on the front passenger seat
where the child is seated with its back to the direction of travel (in some countries
this must be in the direction of travel due to other legal regulations applying)
⇒  page 147,

Important safety information regarding the use of child safety seats ;
● you are not able to maintain the distance of at least 25 cm between middle of
steering wheel and chest, despite the driver seat being correctly adjusted;
● special attachments are required in the area of the steering wheel because of
a physical disability;
● you have installed other seats (e.g. orthopaedic seats without side airbags).
Monitoring the airbag system
The functionality of the airbag system is also monitored electronically when one
airbag has been switched off. £ 145
Airbag system Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

Driving Tips
Intelligent Technology General information WARNING
Lack of fuel can cause irregular engine running or lead to shut down the en-
gine. Consequently, the systems described in this chapter may to lose their ef-
fectiveness, resulting in loss of vehicle control – risk of accident! 
Electronic stability programme (ESP)
General Fig. 138 ESP system: Switch for TCS
The ESP aids you in maintaining control of your vehicle in situations in which the
vehicle is driving at its dynamic limits, such as entering a curve fast. The risk of
skidding is reduced and your car thus offers greater driving stability depending on
the conditions of the road surface. The system operates at all speeds.
The following systems are integrated into the electronic stability programme:
● Electronic Differential Lock (EDL),
● Traction control system (TCS),
● active driver-steering recommendation (DSR),
● Antilock brake system (ABS), ●
Brake Assist,
● Uphill Start Assist.
The ESP system cannot be switched off with the  ⇒ 
fig. 138 button; only the TCS
system is switched off, the warning light  instrument cluster lights up.
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 individual systems. It al-
so processes additional measurement data which are supplied by highly sensitive
sensors: the rotational velocity of the vehicle about its vertical axis, the lateral ac-
celeration 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 be-
haviour 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.
During an intervention of the system, the warning light  flashes in the instru-
ment cluster ⇒ page 26.
The ESP operates in combination with the ABS ⇒ page 158, Antilock brake system
(ABS). If there is a fault in the ABS system, the ESP also does not operate.
The ESP warning light lights up in the instrument cluster when there is a fault on
the ESP  ⇒  page 26. £154
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WARNING
It is also not possible for the ESP to overcome the physical limits of the vehi-
cle. 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 par-
ticularly 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 prob-
lem-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 another combi-
nation of tyres and wheels) can influence the function of the ESP ⇒
 page 197, Ac-
cessories, changes and replacement of parts. 
Electronic Differential Lock (EDL and XDL) The electronic differential lock prevents an individual wheel from
slipping.
General
The EDL makes it much easier, and sometimes at all possible, to start off, acceler-
ate and climb a steep hill when the conditions of the road surface are unfavoura-
ble.
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 sen-
sors. 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 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.
XDL function (only for Octavia RS)
The XDL function is an extension to the electronic differential lock. The XDL func-
tion does not respond to traction, but to the relief of the inner front wheel during
fast cornering. An active brake intervention on the brake of the inner wheel pre-
vents it from spinning. Thus, the traction is improved and the vehicle continues to
follow the desired track.
WARNING
● Carefully depress the accelerator 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 sur-
face 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 other-
wise - risk of an accident! Note
● If the ABS or ESP warning light comes on, this may also indicate a fault in the
EDL. Have the vehicle inspected by your specialist garage as soon as you can.
● Changes to vehicle (e.g. on engine, on the brakes, on chassis or another combi-
nation of tyres and wheels) can influence the function of the EDL ⇒

 page 197, Ac-
cessories, changes and replacement of parts.  155
Intelligent Technology Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

Traction control system (TCS)
The traction control system prevents the driven wheels from spin-
ning when accelerating.
Fig. 139 TCS switch
General
The TCS makes it much easier, and sometimes at all possible, to start off, acceler-
ate and climb a steep hill when the conditions of the road surface are unfavoura-
ble.
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 transmitted to the road sur-
face is automatically adapted by reducing the engine speed. The system operates
at all speeds.
The TCS operates in combination with the ABS ⇒ page 158, Antilock brake system
(ABS)
. The TCS will not function if a fault exists in the ABS system.
The TCS warning light lights up in the instrument cluster when there is a fault on
the TCS 
⇒  page 26.
During an intervention of the system, the TCS warning light flashes  in the in-
strument cluster ⇒ page 26.
Switching off
You can also switch off the TCS system by pressing the ⇒ fig. 139 button, or, in ve-
hicles with ESP, by pressing the ⇒ fig. 138 button. The TCS warning light lights up
in the instrument cluster when the TCS is switched off . The TCS 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 TCS again. WARNING
You should always adjust your style of driving to the conditions of the road
surface and the traffic situation. 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 prob-
lem-free operation of the TCS. 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 another combi-
nation of tyres and wheels) can influence the function of the TCS ⇒

 page 197, Ac-
cessories, changes and replacement of parts. 
Active driver-steering recommendation (DSR) This function indicates to the driver in critical situations a steering recommenda-
tion in order to stabilise the vehicle. The active driver-steering recommendation is
activated, for example, on the right and left vehicle side when braking sharply on
different road surfaces. WARNING
Even with this function the vehicle cannot steer itself! The driver is further-
more responsible for the steering of the vehicle! 156
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Brakes
What has a negative effect on braking efficiency?
Wear-and-tear
Wear-and-tear to the brake pads is greatly dependent on the operating conditions
of the vehicle and your style of driving. Particularly if you drive a great deal in
towns and over short distances or if you adopt a sporty style of driving, it may be
necessary to have the thickness of the brake pads inspected at a specialist garage
between the service inspections.
Wet roads or road salt
There may be a certain delay before the brakes take full effect under certain con-
ditions such as when driving through water, during heavy rain showers or after
the vehicle has been washed in an automatic vehicle wash, since the brake discs
and brake pads may be moist or even have a coating of ice on them in winter. You
should dry the brakes as soon as possible by applying and releasing the brakes
several times.
There also may be a certain delay before the full braking efficiency is available
when driving on roads which have been treated with road salt if you have not
used the brakes for some considerable time beforehand. The layer of salt on the
brake discs and brake pads must first be rubbed off when you apply the brakes.
Corrosion
Corrosion on the brake discs and dirt on the bake pads occur if the vehicle has
been parked for a long period and if you do not make much use of the braking sys-
tem.
We recommend cleaning the brake discs by firmly applying the brakes at a fairly
high speed if you do not make much use of the braking system or if surface corro-
sion is present ⇒  .
Faults in the brake surface
If you notice that the braking distance has suddenly become longer and that the
brake pedal can be depressed further, it is possible that a brake circuit of the dual-
circuit brake system has failed. Drive, in such cases, to the nearest specialist ga-
rage without delay in order to have the problem rectified. Drive at a reduced
speed while on your way to the dealer and adapt your style of driving to the high-
er brake pedal pressure required. Low brake fluid level
An insufficient level of brake fluid may result in problems in the brake system. The
level of the brake fluid is monitored electronically
⇒ page 28, Brake system . WARNING
● Only apply the brakes for the purpose of drying and cleaning the brake
discs if the traffic conditions permit this. Do not place any other road users in
jeopardy.
● When retrospectively mounting a front spoiler, solid wheel hubs etc. one
must ensure that the air supply to the front wheel brakes is not reduced oth-
erwise the braking system could run too hot.
● Allow for the fact that new brake pads do not achieve their full braking ef-
ficiency until approximately 200 kilometres. New brake pads must be first
“run in
” before they develop their optimal friction force. You can, however,
compensate for this slightly reduced braking force by increasing the pressure
on the brake pedal. This guideline also applies to any new brake pads installed
at a future date. CAUTION
● Never allow the brakes to rub by applying slight pressure if you do not wish to
brake the vehicle. This causes the brakes to overheat and can also result in a lon-
ger braking distance and excessive wear.
● Before negotiating a steep downhill section, please reduce your speed, shift
down into the next lower gear (manual gearbox) or select a lower driving stage
(automatic gearbox). This enables you to make full use of the braking power of
the vehicle and reduces the strain on the brakes. Any additional braking should be
done intermittently, not continuously. Note
The brake light flashes automatically in case of an emergency braking at speeds
greater than 60 km/h or with the intervention of the ABS, which lasts longer than
1.5 seconds. After the speed was reduced below 10 km/h or the vehicle was stop-
ped, the brake light stops flashing and the hazard warning light system switches
on. The hazard warning light system is switched off automatically after accelerat-
ing or driving off again.  157
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Brake booster
The brake booster boosts the pressure which you generate with the brake pedal.
The necessary pressure is only generated when the engine is running. WARNING
● Never switch off the engine before the vehicle is stationary.
● The brake booster only operates when the engine is running. Greater
physical effort for braking is required when engine is switched off. Because if
you do not stop as normal, this can cause an accident and severe injuries.
● While stopping or braking with a vehicle with a petrol engine and manual
transmission in the low rev range, press down on the clutch pedal. If you fail
to do so, the result may be an impairment of the function of the power brake.
You will apply a greater force to the brake pedal which you are usde to - dan-
ger of accident! 
Antilock brake system (ABS) ABS prevents the wheels locking when braking.
General
The ABS contributes significantly to enhancing the active safety of your vehicle.
Compared to a car not fitted with the ABS brake system, you are able to retain op-
timal steering ability even during a full brake application on a slippery road surface
because the wheels do not lock up.
You must not expect, however, that the braking distance will be shorter under all
circumstances as a result of the ABS. The braking distance for example on gravel
and fresh snow, when you should anyway be driving slowly and cautiously, will be
longer.
Operating principle
The brake pressure will be reduced on a wheel which is rotating at a speed which
is too low for the speed of the vehicle and tending to lock. This control cycle is
noticeable from a pulsating movement of the brake pedal which is accompanied
by noises. This is consciously intended to provide the driver with the information
that the wheels are tending to lock (ABS control range). You must always keep the
brake pedal depressed to enable the ABS to optimally control the brake applica-
tion in this braking range. Never interrupt the application of the brakes! As soon as the vehicle speed has increased to about 20 km/hour an automatic
test procedure is conducted during which you will be able to hear a pumping noise
for about 1 second. WARNING
● The ABS can also not overcome the physical limits of your vehicle. Please
do not forget this, particularly when driving on icy or wet road surfaces. If the
ABS is operating within the control range, adapt your speed immediately to
the conditions of the road surface and the traffic situation. The increased
safety offered by the ABS must not tempt you to take greater risks than oth-
erwise - risk of an accident!
● The normal braking system is still fully functional if there is an ABS fault.
Visit a specialist garage immediately and adjust your style of driving according
to the damage to the ABS as you will not know how great the damage is and
the limitation it is placing on the braking efficiency. Note
● A warning light comes on if a fault occurs in the ABS system  ⇒  page 27.
● Changes to vehicle (e.g. on engine, on the brakes, on chassis or another combi-
nation of tyres and wheels) can influence the function of the ABS ⇒

 page 197,
Accessories, changes and replacement of parts. 
Brake Assist During a severe brake application (e.g. if a hazard exists), the Brake Assist increa-
ses the braking force and thus makes it possible to rapidly produce the pressure
required in the brake system.
The majority of drivers do apply the brakes in good time in dangerous situations,
but do not depress the brake pedal with sufficient pressure. Consequently, it is
not possible for the car to achieve its maximum deceleration and the car covers a
greater distance than necessary.
The Brake Assist is activated by the very quick operation of the brake pedal. In
such cases, a much greater braking pressure exists than during a normal brake ap-
plication. This makes it possible, even with a relatively low resistance of the brake
pedal, to produce an adequate pressure in the brake system in the shortest possi-
ble time, which is required for maximum deceleration of the car. You must apply
the brake pedal firmly and hold it in this position in order to achieve the shortest
possible braking distance. £158
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