2012 SKODA OCTAVIA heater

Coolant capacity1)Petrol enginesCapacities (in litres)1.2 ltr./63 kW TSI8.91.4 ltr./103 kW TSI10.21.8 ltr./132 kW TSI7.8Diesel enginesCapacities (in litres)1.6 ltr./77 kW TDI CR8.42.0 l/110 kW TDI CR - MG/DSG11,6 / 11,9
CAUTION
■
The amount of coolant additive in the coolant must never be allowed to be less
than 40 %.■
Over 60 % of coolant additive in the coolant reduces the antifreeze protection
and coolant effectiveness.
■
Other coolant additives that do not comply with the correct specifications can
above all significantly reduce the anticorrosion effect.
■
Any faults resulting from corrosion may cause a loss of coolant and can conse-
quently result in major engine damage!

Checking the coolant level
Fig. 150
Engine compartment: Coolant
expansion reservoir
First read and observe the introductory information and safety warn-
ings on page 169.
The coolant expansion bottle is located in the engine compartment.
Inspecting the coolant level›
Switch off the engine.
›
Open the bonnet.
›
Check the level of coolant in the coolant expansion bottle » Fig. 150.
Coolant level within range
A
The level may also rise slightly above the
A
marking when the engine is warm.
›
No coolant must be refilled.
Coolant level within range
A
and
B
When the engine is cold, the coolant level must lie between the
A
and
B
mark-
ings.
›
Coolant can be refilled.
Coolant level within range under
B›
Coolant must be refilled.
When the engine is cold, refill the coolant between the markings
A
and
B
.
If the coolant level in the expansion tank is too low, this will be signalised by the warning light 
illuminating in the instrument cluster » page 15, Coolant temper-
ature/coolant level 
, however we recommend you regularly check the coolant
level in the container directly.
Loss of coolant
A loss of coolant is first and foremost an indication of a leak in the system. Do
not merely top up the coolant. Have the cooling system checked by a ŠKODA spe- cialist garage.
WARNING Do not continue your journey, if for some reason it is not possible to top up
the coolant under the prevailing conditions! Switch off the engine and seek
assistance from a ŠKODA specialist garage. 1)
On vehicles that are fitted with an auxiliary heater (auxiliary heating and ventilation), the coolant ca-
pacity is approx. 1 l larger.
174General Maintenance

WARNING“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
CAUTION
On vehicles with the START/STOP system, the pole terminal of the charger must
not be connected directly to the negative terminal of the vehicle battery, but only
to the engine earth » page 196, Jump-starting in vehicles with the START-STOP
system .
Note
We recommend having the quick charging of vehicle batteries undertaken by a
ŠKODA specialist garage.
Disconnecting and reconnecting the vehicle battery
First read and observe the introductory information and safety warn-ings
on page 176.
On disconnecting and reconnecting the vehicle battery the following functionsare initially deactivated or are no longer able to operate fault-free:
OperationOperating measureElectrical power window (operational faults)» page 41Enter the radio/navigation system code num-
ber» operating instructions for Info-
tainment radio or » operating in-
structions for Infotainment Navi-
gationSetting the clock» page 11Data in the multifunction display are deleted» page 22
Note
We recommend having the vehicle checked by a ŠKODA Partner to ensure the full
functionality of all electrical systems.
Automatic load deactivation
First read and observe the introductory information and safety warn-ings
on page 176.
The vehicle voltage control unit automatically prevents the battery from discharg-
ing when the bettery is subjected to heavy loads. This manifests itself by the fol-
lowing:
› The idling speed is raised to allow the generator to deliver more electricity to
the electrical system.
› Where appropriate large convenience consumers, e.g. seat heaters, rear win-
dow heaters, have their power limited or in case of emergency shut off com-pletely.
CAUTION
■ Despite such intervention by the vehicle electric system management, the vehi-
cle battery may be drained. For example, when the ignition is switched on a long
time with the engine turned off or the side or parking lights are turned on during longer parking.■
Consumers which are supplied via a 12 V socket can cause the vehicle battery to
discharge when the ignition is switched off.
Note
Driving comfort is not disrupted by any shutting off of consumers. Often the driv-
er is not aware of it having taken place.
180General Maintenance

Fuses in the dash panelFig. 171
Storage compartment in the dash panel/schematic diagram of the
fuse box
First read and observe the introductory information and safety warn-
ings
on page 199.
The fuse box can be found behind the stowage compartment in the left-hand
part of the dash panel.
Replacing fuses
›
Opening the stowage compartment » page 73.
›
Grab hold of the stowage compartment in the area of the arrows » Fig. 171.
›
Fold out the stowage compartment by pulling in the direction of arrow
1
.
›
Replace the appropriate fuse.
›
Fold back the stowage compartment by pressing into the secured position in
the dash panel in the direction of arrow
2
.
›
Close the stowage compartment.
Fuse assignment in the dash panel
No.Power consumer1Not assigned2Not assigned3Not assigned4Not assigned5Data bus control unit6Alarm sensorNo.Power consumer
7
Control unit for the air conditioning system, heating, receiver for re-
mote control for the auxiliary heating, selector lever for the automatic gearbox, relay for the rear window heater, replay for the windscreen
heater8Light switch, rain sensor, diagnostic socket9Haldex clutch10Touchscreen11Heated rear seats12Radio13Heated rear seats14Air blower for air conditioning,heating15Electric steering lock16Signal amplifier for telephone, telephone preinstallation17Instrument cluster18Not assigned19KESSY control unit20Steering wheel module21Radio accessories22Luggage compartment door opening23Light - right24Panorama roof25Control unit for central locking front door right, power windows - left26Heated front seats27Music amplifier28Towing device29Not assigned30Belt tensioner - driver's side31Headlight - left32Parking aid (Park Assist)33Airbag 200Do-it-yourself

No.Power consumer
34
TCS button, ESC, tyre control display, pressure sensor for air-condi-tioning, reverse light switch, dimming rear view mirror, START-STOPbutton, telephone preinstallation, control for heating of rear seats,sensor for air-conditioning, 230 V power socket, sound actuator35Headlight, headlamp beam adjustment, diagnostic connector, camera,
radar36Headlight right37Headlight left38Towing device39Control unit for central locking front door - right, power windows -
front and rear right4012-Volt power socket41CNG relay42Control unit for central locking rear door - left, right, headlight clean-
ing system, windscreen wipers43Visor for gas discharge bulbs, interior lighting44Towing device45Control unit for control of seat adjustment46230-Volt power socket47Rear window wiper48Not assigned49Coil on starter relay, clutch pedal switch50Not assigned51Belt tensioner - front passenger side52Not assigned53Relay for rear window heater
Note
On right-hand drive vehicles, the fuse box is located on the front passenger's side
behind the stowage compartment in the left-hand section of the dash panel.
Fuses in the engine compartmentFig. 172
Fuse box cover in engine compartment/Schematic diagram of the
fuse box
Fig. 173
Cover for the fuse box in the en-
gine compartment: Plastic clip
for fuses
First read and observe the introductory information and safety warn-
ings on page 199.
Replacing fuses
›
Press together the interlocks of the cover simultaneously in the direction of the
arrow
1
» Fig. 172 .
›
Remove the cover in the direction of the arrow
2
.
›
Replace the appropriate fuse.
›
Place the cover on top of the fusebox.
›
Push in the interlocks on the cover and lock. 
201Fuses and light bulbs

Fuse assignment in engine compartmentNo.Power consumerF1Control unit for ESCF2Control unit for ESC, ABSF3Engine control unitF4Engine control unit, relay for electric auxiliary heatingF5Engine componentsF6Brake sensor, engine componentsF7Coolant pump, engine componentsF8Lambda probeF9Ignition, control unit for glow plug system, engine componentsF10Control unit for fuel pump, ignitionF11Electrical auxiliary heating systemF12Electrical auxiliary heating systemF13Control unit for automatic gearboxF14Windscreen heater - leftF15HornF16IgnitionF17Control unit for ABS, ESC, engine control unitF18Data bus control unitF19Windscreen wipersF20AlarmF21ABSF22Engine control unitF23StarterF24Electrical auxiliary heating systemF31Not assignedF32Not assignedF33Not assignedF34Windscreen heater - rightF35Not assignedF36Not assignedNo.Power consumerF37Control unit for auxiliary heatingF38Not assigned

Bulbs
Introduction
This chapter contains information on the following subjects:
Headlights
203
Changing the bulb for the low beam
203
Replacing the bulb for main beam and separate daytime running lights
204
Changing the bulb for daytime running lights and parking light
204
Changing light bulbs for fog lights
204
Changing the bulb for the licence plate light
205
Tail lamp assembly
205
Replacing the bulbs in the tail lamp assembly
206
Some manual skills are required to change a bulb. For this reason, if uncertain, we recommend that bulbs are replaced by a ŠKODA specialist garage or other experthelp is sought.
› Switch off the ignition and all of the lights before replacing a bulb.
› Faulty bulbs must only be replaced with the same type of bulbs. The designa-
tion is located on the light socket or the glass bulb.
› A stowage compartment for replacement bulbs is located in a plastic box in the
spare wheel or underneath the floor covering in the luggage compartment.
WARNING■ Accidents can be caused if the road in front of the vehicle is not sufficiently
illuminated and the vehicle cannot or can only be seen with difficulty by other
road users.■
Always read and observe the warnings before completing any work in the
engine compartment » page 169. 
202Do-it-yourself