Skoda Octavia II (1Z / A5, 2004-2013) uses a 49-position dashboard fuse box at the driver’s side, a second 30-position engine compartment fuse box and several possible under-dashboard relay holders. Petrol and diesel engines, DSG/automatic gearboxes and different electrical options may have different installed fuses.
All 79 source fuse entries in two complete tables and ten original electrical illustrations are retained. This is a reference for the documented configurations, not a universal rating for every 2004-2013 vehicle. Use the car’s cover and the model-year manual before changing a fuse.
Where are the Octavia II fuse boxes?
Cabin: behind the side dashboard cover exposed when the driver’s door is open. Additional relay carriers are behind the lower dashboard trim. Engine bay: on the left side under a protective cover near the 12 V battery. The relay diagrams may vary by engine and equipment.
Octavia II passenger fuse box 1-49
Cigarette lighter / 12 V socket: fuse 24 (15 A). Boot 12 V socket: 26 (20 A). Windscreen washer: 42 (15 A). Fuel pump relay and injectors: 27 (15 A). Front electric windows: 23 (30 A). Rear window heater: 25 (25 or 30 A).
| Position | Rating [A] | Protected circuit / function |
|---|---|---|
| 1 | 10 A | OBD diagnostics, Engine Control Module and fuel pump |
| 2 | 5 A | ABS/ESP controller |
| 3 | 5 A | Airbag controller |
| 4 | 5 A | Heating and air conditioning, reversing lamp |
| 5 | 5 A | Headlamp beam levelling |
| 6 | 5 A | Instrument cluster, automatic gearbox, steering assistance and park control |
| 7 | – | Reserved |
| 8 | – | Reserved |
| 9 | – | Reserved |
| 10 | – | Reserved |
| 11 | – | Reserved |
| 12 | 10 A | Central locking module |
| 13 | 10 A | Exterior lighting and brake lamps |
| 14 | 5 A | Automatic gearbox selector interlock |
| 15 | 7.5 A | Interior lighting module |
| 16 | 10 A | Air conditioning |
| 17 | – | Optional equipment |
| 18 | 5 A | Parking sensors |
| 19 | 5 A | Trailer detection module |
| 20 | 5 A | Hill-start assistance |
| 21 | – | Reserved |
| 22 | 40 A | Air-conditioning fan |
| 23 | 30 A | Front electric windows |
| 24 | 15 A | Cigarette lighter / 12 V accessory socket |
| 25 | 25 / 30 A | Heated rear window and optional auxiliary heating |
| 26 | 20 A | Luggage compartment 12 V socket |
| 27 | 15 A | Fuel pump relay and fuel injectors |
| 28 | – | Optional equipment |
| 29 | 10 A | Engine Control Module |
| 30 | 20 A | Automatic gearbox controller |
| 31 | 20 A | Brake servo vacuum pump |
| 32 | 30 A | Rear electric windows |
| 33 | 25 A | Power sunroof |
| 34 | 20 A | Comfort electronics module |
| 35 | 5 A | Anti-theft alarm module |
| 36 | 20 A | Headlamp washers |
| 37 | 20 A | Heated front seats |
| 38 | 30 A | Heated rear seats |
| 39 | – | Reserved |
| 40 | 40 A | Heating blower |
| 41 | 15 A | Rear window wiper |
| 42 | 15 A | Windscreen washer pump |
| 43 | 15 A | Trailer socket supply |
| 44 | 20 A | Trailer socket supply |
| 45 | 15 A | Trailer socket supply |
| 46 | 5 A | Heated windscreen washer jets |
| 47 | 5 A | Auxiliary heating relay |
| 48 | – | Reserved |
| 49 | 5 A | Main lighting switch |
Octavia II under-dashboard relay layouts
One common type-1 carrier uses B4 for terminal 30 supply, B5 for heated rear glass, B6 for horn, B7/B8 for washer pump circuits and B9 for terminal X load reduction.
Type 2 relay holder
Relays below the central module
J329: terminal 15 supply; J9: rear-window heating; J682/J906: terminal 50 or starter; J643: fuel-pump power in selected petrol versions or J17 in diesels; J59: terminal X.
Relays above the central module
D1: parking-heater J485 or low-power heater J359; D2.1: horn J4; D2.2: petrol fuel pump or diesel auxiliary J832; D3: high-output heater J360; D3.1: fresh-air blower J13; D3.2: parking-heater fuel pump J749; D4: second starter J907; D5.1: headlamp washer J39; D5.2: supplementary heater J925, where fitted.
On certain cars, a supplementary blower thermal fuse is located outside the ordinary fuse panel.
Octavia II engine compartment fuses 1-30
The under-bonnet unit protects the ABS module, engine control, front wipers, horn, starter, headlights and supplementary heating. Wipers: position 19 (30 A). Horn: 17 (15 A). Starter: 28 (40 A). ABS: positions 4 and 16 (30 A each). The terminal X feed at 30 (50 A) disconnects certain consumers while cranking.
| Position | Rating [A] | Protected circuit / function |
|---|---|---|
| 1 | – | Reserved |
| 2 | 5 A | Steering-column switches |
| 3 | 5 A | OBD diagnostics |
| 4 | 30 A | ABS electro-hydraulic module |
| 5 | 15 A | Automatic transmission module |
| 6 | 5 A | Instrument cluster |
| 7 | – | Reserved |
| 8 | 15 A | Factory audio |
| 9 | 5 A | Telephone module |
| 10 | 5 A | Engine controller relay power |
| 11 | 20 A | Parking heater and ventilation module |
| 12 | 5 A | CAN data bus controller |
| 13 | 15 A | Engine Control Module |
| 14 | 20 A | Ignition system |
| 15 | 5 / 15 A | Lambda sensor, fuel pump and glow plug relays |
| 16 | 30 A | ABS controller |
| 17 | 15 A | Horn |
| 18 | 30 A | Audio amplifier |
| 19 | 30 A | Front windscreen wipers |
| 20 | – | Reserved |
| 21 | 15 A | Lambda oxygen sensor |
| 22 | 5 A | Brake and clutch-pedal switches |
| 23 | 5 / 10 / 15 A | Secondary air pump, high-pressure fuel pump and airflow meter, engine-specific |
| 24 | 10 A | Exhaust Gas Recirculation (EGR) valve |
| 25 | 30 A | Right headlamp |
| 26 | 30 A | Left headlamp |
| 27 | 40 A | Secondary air pump and preheating |
| 28 | 40 A | Starter motor |
| 29 | 50 A | Main permanent terminal 30 power |
| 30 | 50 A | Terminal X load-reduction circuit, disconnected during engine cranking |
The engine panel can also contain R1 cooling fan relay, R2 automatic transmission relay and R3 terminal 15 relay.
Cigarette lighter, washers and fuel pump diagnosis
For a failed 12 V socket, check cabin fuse 24 (15 A) and inspect the socket for shorting. Washer failures may involve cabin fuse 42 (15 A) or a pump/relay fault. For engine starting problems, cabin fuse 27 (15 A) is a fuel pump relay/injector feed, but not every no-start condition indicates a fuse fault.
Compare fuse arrangements in the Skoda Octavia I / Tour, Skoda Octavia III and Skoda Octavia IV; their fuse assignments differ.
Octavia II fuse box FAQ
Where is the cigarette lighter fuse?
Dashboard fuse 24, rated 15 A in the documented layout.
Where is the windscreen washer fuse?
Dashboard fuse 42 (15 A).
Where is the front wiper fuse?
Engine fuse 19 (30 A).
Why are there multiple relay drawings?
Several physical relay carrier types were fitted depending on vehicle configuration and production date.
Fit only the fuse type and rating specified by the manufacturer. Repeated fuse failure requires diagnosing the circuit instead of installing a larger fuse.