The third generation, Skoda Octavia a7 was produced in 2013, 2014, 2015, 2016 and 2017. After that, the car was restyled and with an updated exterior was produced in 2018, 2019, 2020, 2021 and to the present. As in previous generations , the model is available in two body styles: liftback and station wagon with gasoline and diesel engines. In this publication, we will show where the fuse boxes and relays are located in the Skoda Octavia A7 car , their photographs and diagrams with a description of the purpose of the elements. Separately, we highlight the cigarette lighter and washer fuses.

Block in the cabin
It is located under the dashboard behind the glove box. To access it, bend the side walls slightly and pull towards you.

Photo of the block in the cabin of the Skoda Octavia A7


| F1 | Not used |
| F2 | Not used |
| F3 | Not used |
| F4 | Not used |
| F5 | 5A Diagnostics of the data bus interface |
| F6 | 5A Vehicle Interior Monitoring Device Sensor, Vehicle Tilt Sensor |
| F7 | 10A rear window heating relay, heater control unit, air conditioner control unit, climate control system control unit, preselector sensor control unit, front window heating relay, independent heater radio receiver |
| F8 | 10A plug connection, 16-pin on diagnostic socket, air humidity sensor, air humidity, rain and light recognition sensor, headlight switch |
| F9 | 15A All Wheel Drive Control Unit |
| F10 | 10A Multimedia System Control Unit |
| F11 | 25A Rear Seat Heating Control Unit |
| F12 | 20A Information Electronics Control Unit |
| F13 | 25A Front Left Seat Belt Switch Control Unit |
| F14 | 30A Fresh Air Intake Fan Control Unit |
| F15 | 10A Electronic Steering Column Lock Control Unit |
| F16 | 7.5A Mobile Phone Preparation / 5A Two-Way Mobile Radio Signal Booster |
| F17 | 5A control unit in combined instruments |
| F18 | Reserve |
| F19 | 7.5A Access and Starting System Interface |
| F20 | 5A 7Steering column electronics control unit |
| F21 | Reserve |
| F22 | 30A Rear Hood Control Unit |
| F23 | 40A vehicle electrical system control unit |
| F24 | 30A Convertible Roof Control Unit, Roof Curtain Control Unit |
| F25 | 30A Door Control Module, Driver Side, Rear Left Power Window Motor |
| F26 | 25A control unit for the vehicle’s electrical on-board network (for vehicles with seat heating system) |
| F27 | 30A Digital Audio Control Unit |
| F28 | 20A Trailer Recognition Control Unit |
| F29 | Reserve |
| F30 | Reserve |
| F31 | 40A vehicle electrical system control unit |
| F32 | 7.5A Parking Assistant Control Unit, Parking Assistant Control Unit |
| F33 | 5A Airbag system shutdown indicator on the front passenger side, Airbag system control unit |
| F34 | 7.5A headlight switch -E1-, reversing light switch -F4-, coolant pressure sensor, rear seat heating control unit, interior rearview mirror with automatic dimming -, inverter with socket, 12V-230V-, preparation for installing a mobile phone, load relay, sound control unit in rigid material |
| F35 | 35A plug connection, 16-pin, on diagnostic socket headlight range control unit, left headlight range adjustment servo motor, right headlight range adjustment servo motor, cornering light control unit and headlight range adjustment, front camera for driver assistance systems, distance adjustment control unit |
| F36 | 10A Right headlight |
| F37 | 10A Left headlight |
| F38 | 20A Trailer Recognition Control Unit |
| F39 | 30A Door Control Module, Front Passenger Side, Rear Right Power Window Motor |
| F40 | 20A Octavia A7 cigarette lighter fuse, 12V socket |
| F41 | Reserve |
| F42 | 40A vehicle electrical system control unit |
| F43 | 40A vehicle electrical system control unit |
| F44 | 30A Trailer Recognition Control Unit |
| F45 | 30A Driver’s Seat Adjuster Thermal Fuse |
| F46 | 30A inverter with socket, 12V-230V |
| F47 | 15A Rear Window Wiper Motor |
| F48 | Reserve |
| F49 | 5A Starter Relay 1, Starter Relay 2, Clutch Pedal Position Sensor |
| F50 | Reserve |
| F51 | 25A Front Right Seat Belt Tensioner Control Unit |
| F52 | Reserve |
| F53 | 30A heated rear window |
Fuse number 40 for 20A is responsible for the cigarette lighter in the passenger compartment and in the luggage compartment.
Relay
- Rel 1 — Power relay for connector 15
- Rel 2 — Rear window heating device relay
- Rel 3 — Load relay
Description. Option 2. Restyling.
- Not used
- Not used
- Not used
- Heated steering wheel
- Data bus
- Alarm sensor
- Climate control, heater, independent heater remote control receiver, automatic transmission, rear window heating relay, ignition key removal lock (cars with automatic transmission)
- Light switch, rain sensor, diagnostic connector, decorative lighting, headlight control unit
- All-wheel drive
- Infotainment system display
- Lighting from the left
- Infotainment system
- Driver’s seat belt pretensioner
- Air conditioning and heating fan
- Electric steering column adjustment
- Phonebox, wireless phone charging
- Instrument cluster, emergency call
- Rear view camera
- KESSY System
- Steering column switch
- Adaptive shock absorbers
- Towing hitch
- Lift and slide hatch
- Light on the right
- Central locking: front left door, left power windows, left outside rearview mirror: heating, mirror folding function, mirror element position adjustment
- Heated front seats
- Interior lighting
- Towing hitch
- SCR (AdBlue®) system
- Heated rear seats
- Not used
- Parking assistance system, parking steering assistant
- Airbag, Hazard warning light switch
- ASR, ESC, tire pressure monitoring system, climate control, reversing light switch, auto-dimming mirrors, START-STOP system, heated rear seats, symposer
- Headlight range control, diagnostic connector, sensor (camera) behind the windshield, radar sensor
- Right headlight
- Left headlight
- Towing hitch
- Central locking: front right door, right power windows, right outside rearview mirror: heating, mirror folding function, mirror element position adjustment
- 12V sockets (cigarette lighters)
- Front passenger seat belt tensioner
- Central locking: rear doors, headlight washers, windscreen washers
- Audio system amplifier
- Towing hitch
- Electric seat adjustments
- 230V sockets
- Rear window wiper
- Blind Spot Monitoring Assistant
- Engine start, clutch pedal switch
- Opening the trunk lid
- SCR (AdBlue®) system
- USB socket
- Rear window heating
In this version, fuse number 40 is also responsible for the cigarette lighter, and fuse number 42 is responsible for the washer.
Block under the hood
It is located on the left side of the engine compartment and is covered by a protective cover, which is secured with 2 fasteners on the sides.



FS – High Power Fuse Block
Designation. Option 1.
| F1 | 20A/40A device control unit (automatic control unit with automatic distance adjustment) |
| F2 | 40A ABS control unit |
| F3 | 20A/30A Engine Control Unit |
| F4 | 5A/10A motor electronics, low thermal performance relay |
| F5 | 10A ignition cut-off relay, engine electronics |
| F6 | 5A Brake Pedal Switch |
| F7 | 5A coolant shut-off valve, gearbox coolant valve (for engine code CJSA, CJSB, СННВ) / 10A engine electronics (for engine code CJZB, CJZA, СИРА, CLHB, CLHA, CRVC, CKFC, CUPA) |
| F8 | 10A lambda probe, lambda probe after catalytic converter (for engine code CJZB, CJZA, CLHB, CLHA, CKFC, CUPA) / 15A lambda probe-G39-, lambda probe after catalytic converter -G130- (for engine code SIRA, CJSA, CJSB, СННВ) |
| F9 | 5A control unit for temporary automatic glow plug -L 79-, heating resistor for engine oil pan ventilation -N79- (for diesel engines) / 10A engine electronics (for engine codes CJSA, CJSB, СННВ) / 20A ignition (for engine letter designations CJZB, CJZA, СИРА) |
| F10 | 15A fuel pump relay (for petrol engines) / 20A fuel pump control unit (for diesel engines) |
| F11 | 40A additional air heater heating element |
| F12 | 40A heating element, additional air heater |
| F13 | 15A/30A mechatronics dual clutch gearbox |
| F14 | 30A relay windshield heating skoda oktavia a7 |
| F15 | 20A High Tone Horn Relay, High Tone Horn, Low Tone Horn |
| F16 | 20A ignition cut-off relay |
| F17 | 7.5A Main Relay, Engine Control Unit, ABS Control Unit |
| F18 | 5A diagnostics of the data bus interface (for vehicles without independent heating without a start-stop system), control and monitoring unit of the battery (for vehicles with independent heating with a start-stop system) |
| F19 | 30A Windscreen Wiper Motor Control Unit |
| F20 | 10A Anti-theft Alarm Sound |
| F21 | 20A ABS control unit |
| F22 | 5A Engine Control Unit |
| F23 | 30A starter |
| F24 | 40A additional air heater heating element |
| F25 | – |
| F26 | – |
| F27 | – |
| F28 | – |
| F29 | – |
| F30 | – |
| F31 | 15A brake drive vacuum pump |
| F32 | – |
| F33 | – |
| F34 | 30A Relay 2 Windshield Heating |
| F35 | – |
| F36 | – |
| F37 | 20A Additional heater control unit -J364- |
| F38 | – |
Relay
- Rel 1 — Start relay 1
- Rel 2 — Start relay 2
- Rel 3 — Horn relay
- Rel 4 – Relay for greater thermal performance
- Rel 5 — Main Relay
Designation. Option 2.
- ESC, ABS, parking brake
- ESC, ABS
- Engine management system
- Radiator fan, oil temperature sensor, air flow meter, fuel pressure regulator, electric auxiliary heater, oil pressure regulator, EGR valve, pre-glow system, SCR (AdBlue®)
- Ignition, CNG relay coil, injectors, fuel metering valve
- Brake pressure sensor
- Coolant pump, radiator shutter, oil pressure regulator, transmission oil pressure regulator,
crankcase ventilation heater - Lambda probe
- Ignition, exhaust valve
- Fuel pump, ignition
- Additional electric heater
- Additional electric heater
- Heated windshield – left
- Heated windshield – right
- Sound signal
- Ignition, fuel pump, compressed natural gas relay
- ABS, ESC, engine control unit, windshield heating relay
- Data bus, battery data module
- Windscreen wiper
- Anti-theft alarm
- Automatic transmission
- Engine management system
- Starter
- Additional electric heater
- Reserve
- Reserve
- Reserve
- Reserve
- Reserve
- Reserve
- Brake system vacuum pump
- Not used
- Automatic transmission oil pump
- Front axle interwheel differential
- Not used
- Not used
- Autonomous heater
- Not used