2013 SKODA OCTAVIA four wheel drive

Assist systems
Brake assist systems
Introduction
This chapter contains information on the following subjects:
Electronic Stability Control (ESC)
137
Antilock Braking System (ABS)
138
Traction Control System (TCS)
138
Electronic Differential Lock (EDL and XDS)
139
Driver Steering Recommendation (DSR)
139
Hydraulic Brake Assist (HBA)
139
Hill Hold Control (HHC)
139
Multicollision brake
140WARNING■ A lack of fuel can cause irregular engine running or cause the engine to shut
down. The brake assist systems would then fail to function – risk of accident!■
Adjust the speed and driving style to the current visibility, weather, road and
traffic conditions. The increased safety offered by the brake assist systems must not tempt you to take greater risks than otherwise – risk of accident!
■
In the event of an ABS fault, visit a specialist garage immediately. 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 effi-
ciency.
CAUTION
■ All four wheels must be fitted with the same tyres approved by the manufactur-
er to ensure the brake assist systems operate correctly.■
Changes to the vehicle (e.g. to the engine, brakes, chassis) can influence the
functionality of the brake assist systems » page 200.
■
If a fault occurs in the ABS system, the ESC, ASR and EDL also do not work. An
ABS fault is indicated with the warning light  » page 18 .

Electronic Stability Control (ESC)Fig. 127
ESC button
First read and observe the introductory information and safety warn-
ings on page 137.
The ESC system helps to maintain control of the vehicle in situations where it is
being operated at its dynamic limits, such as a sudden change to the direction of
travel. The risk of skidding is reduced and your car thus offers greater driving sta-
bility depending on the conditions of the road surface.
The ESC system is automatically activated each time the ignition is switched on.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 actualbehaviour of the vehicle. If differences exist, such as the car beginning to skid,
the ESC system will automatically brake the appropriate wheel.
During an intervention of the system, the warning light 
flashes in the instru-
ment cluster.
The following systems are integrated into the Electronic Stability Control (ESC).
› Antilock Brake System (ABS)
» page 138.
› Traction control (TCS)
» page 138.
› Electronic Differential Lock (EDL and XDS)
» page 139.
› Driver Steering Recommendation (DSR)
» page 139.
› Hydraulic Brake Assist (HBA)
» page 139.
› Hill Hold Control (HHC)
» page 139.
› Multicollision brake
» page 140.
› Trailer stabilisation (TSA)
» page 173, Driving with a trailer .
The ESC system cannot be deactivated. Only some systems with built-in ESC
can be deactivated or activated. 
137Assist systems

WARNINGObserve the following instructions for the proper use of the seat belts.■Never use one seat belt to secure two people (including children). The seat-
belt must not be placed over a child who is sitting on the lap of another pas-
senger.■
The lock tongue should only be inserted into the lock which is the correct
one for your seat. Wrong use of the safety belt will reduce its capacity to pro-
tect and the risk of injury increases.
■
The slot of the belt tongue must not be blocked otherwise the belt tongue
will not lock in place properly.
■
Many layers of clothing and loose clothing (e. g. a winter coat over a jacket)
do not allow you to be correctly seated and impairs proper operation of the
seat belts.
■
It is prohibited to use clamps or other objects to adjust seat belts (e. g. for
shortening the belts for smaller persons).
■
The seat belts for the rear seats can only fulfil their function reliably when
the seat backrests are correctly locked into position » page 78.
WARNINGObserve the following instructions for proper use of the seat belts.■The belt webbing must always be kept clean. Soiled belt webbing may im-
pair proper operation of the inertia reel » page 211.■
The seat belts must not be removed or changed in any way. Do not attempt
to repair the seat belts yourself.
■
Check the condition of all the seat belts on a regular basis. If any damage to
the seat belts, seat belt connections, inertia reel or the lock is detected, the
relevant seat belt must be replaced by a specialist garage.
■
Damaged seat belts which have been subjected to stress in an accident and
were therefore stretched, must be replaced – this is best done by a specialist
garage. The anchorage points for the belts should also be checked.
Note
The national legal requirements must be observed when using seat belts.
The physical principle of a head-on collisionFig. 160
Driver without a fastened seat belt/rear seat passenger without a
fastened seat belt
First read and observe the introductory information and safety warn-
ings
on page 180.
As soon as the vehicle is moving, so-called kinetic energy (the energy of motion)
is produced both in terms of the car as well as in terms of the occupants.
The magnitude of this kinetic energy depends essentially on the speed at which
the vehicle is travelling and on the weight of the vehicle including the occupants.
The greater the speed and weight increase, the greater the amount of energy
which has to be absorbed in the event of an accident.
The speed of the vehicle is the most important factor. Doubling the speed of the
vehicle from 25 km/h up to 50 km/hour increases the kinetic energy four times.
The opinion that it is possible to support your body in a minor accident with your
hands, is incorrect. Even in a collision at only a low speed, the forces acting on the body are such that it is no longer possible to support your body.
Even if you only drive at a speed of 30 km/h to 50 km/h, the forces that your body is exposed to in the event of an accident can exceed a metric ton (1000 kg).
For example, a person's weight of 80 kg “increases” at 50 km/h to 4.8 tons
(4800 kg).
In the event of a frontal collision, occupants of the car not wearing a seat belt are thrown forward and strike parts of the vehicle interior in an uncontrolled manner, such as the steering wheel, dash panel or windscreen » Fig. 160 - 
. In certain
circumstances you could even be thrown out of the vehicle, which could cause life
threatening or even fatal injuries. 
181Seat belts

Wheels
Tyres and wheel rims
Introduction
This chapter contains information on the following subjects:
Service life of tyres
229
New tyres
230
Unidirectional tyres
231
Tyre control display
231
Spare wheel
232
Full wheel trim
233
Wheel bolts
233
Wheel bolts
233WARNING■ The national legal requirements must be observed for the use of tyres.■Observe the national legal regulations relating to the use of snow chains
and the maximum vehicle speed with snow chains.WARNINGThe following instructions for the use of tyres must be observed.■During the first 500 km, new tyres do not offer optimum grip and appropri-
ate care should therefore be taken when driving – risk of accident!■
On all four wheels, use only radial tyres of the same type, size (rolling cir-
cumference) and the same tread pattern.
■
For safety reasons, do no replace tyres individually.
■
Never exceed the maximum permissible load bearing capacity for fitted
tyres – risk of accident!
■
Never exceed the maximum permissible speed for fitted tyres – risk of acci-
dent!
■
An incorrect wheel alignment at the front or rear impairs handling – risk of
accident!
WARNING (Continued)■ Unusual vibrations or pulling of the vehicle to one side could be a sign of
tyre damage. If there is any doubt that a wheel is damaged, immediately re-
duce your speed and stop! If no external damage is evident, drive slowly and
carefully to the nearest specialist garage to have the vehicle checked.■
Only use those tyres or wheel rims which have been approved by ŠKODA for
your model of vehicle. Failure to observe this instruction will adversely affect
the road safety of your vehicle – risk of accident!
WARNINGObserve the following information regarding damage and wear of tyres.■Never use tyres if you do not know anything about the condition and age.■
Never drive with damaged tyres – risk of accident!
■
Immediately replace damaged wheel rims or tyres.
■
You must have your tyres replaced with new ones at the latest when the
wear indicators have been worn down.
■
Worn tyres do not provide the necessary adhesion to the road surface par-
ticularly at high speeds on wet roads. One could experience “aquaplaning” (uncontrolled movements of the vehicle – “swimming” on a wet road surface).
WARNINGObserve the following information regarding the tyre inflation pressure.■The tyre control display does not absolve the driver of the responsibility to
ensure the correct tyre inflation pressure. Check the tyre inflation pressure at
regular intervals.■
Too low or too high inflation pressure impairs handling – risk of an accident!
■
If the inflation pressure is too low, the tyre must perform a greater rolling
resistance. At higher speeds the tyre will warm up as a result of this. This can
result in tread separation and a tyre blowout.
WARNINGObserve the following information regarding the wheel bolts.■The wheel bolts must be clean and must turn easily. Never treat them with
grease or oil. 228General Maintenance