The first-generation Citroën C4 , produced from 2004 to 2010 , marked a bold step forward in design and innovation for the compact hatchback segment. Known for its distinctive styling, including the fixed-hub steering wheel and futuristic dashboard, the C4 offered a blend of comfort, safety, and technology that set it apart from competitors at the time.
In this article, you will find fuse box diagrams for the Citroën C4 , covering model years 2004, 2005, 2006, 2007, 2008, 2009, and 2010 . These diagrams serve as a valuable reference for understanding the vehicle’s electrical system.
What’s Included:
Fuse Box Diagrams – Clear and detailed layouts showing fuse and relay positions.Fuse Panel Locations – Instructions to help you find the fuse panels inside your Citroën C4.Fuse Assignments – Descriptions of each fuse and relay’s function to support diagnostics and repairs.
Whether you’re replacing a blown fuse or investigating an electrical issue, this guide ensures your Citroën C4 (2004–2010) continues to deliver reliable performance and driver satisfaction.
There are two fuse boxes under the dashboard, one fuse box in the engine compartment and another on the battery.
Left-hand drive vehicles: It is located in the lower dashboard (left-hand side).
Right-hand drive vehicles:
To access the fuses below the dashboard, pull back the access cover, undo the screws a quarter turn and tilt the whole unit.
To access the engine compartment fuse box, detach and remove the cover.
Detach and remove the cover
Assignment of the fuses in the Dashboard Fuse box 1 (2004)
Number Rating Functions F1 15 A Central locking F2 30 A Central locking – Deadlocking F3 5 A Airbags and pretensioners F4 10 A Diagnostic socket – Brake switch – Photochromic rear view mirror – ESP – Coolant level sensor – Diesel fuel additive system – Power steering Clutch pedal switch (ESP, cruise control and speed limiter) F5 30 A Electric front windows – Heated exterior rear view mirrors F6 30 A Electric rear windows F7 5 A Interior lighting F8 20 A Audio system – NaviDrive – Display – Alarm – Front 12V socket – Trailer relay unit -Driving school module F9 30 A Cigar lighter – Rear 12V socket F10 15 A Tyre pressure sensor – Auto. – STOPLAMP switch F11 15 A Ignition – Diagnostic socket – Particle filter F12 15 A Electric seat – Lane wandering alert – Parking assistance F13 5 A Rain sensor – Sunlight sensor – (6 speed) Electronic Gearbox System – Engine relay unit F14 15 A Air conditioning – Instrument panel – Tachometer – Airbags and pretensioners -Trailer relay unit – Bluetooth telephone F15 30 A Central locking – Deadlocking F16 SHUNT F17 40 A Heated rear screen
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Assignment of the fuses in the Dashboard Fuse box 2 (2004)
Number Rating Functions F36 20 A Hi Fi amplifier F37 30 A Front left hand electric seat F39 20 A Heated seats
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Assignment of the fuses in the Engine compartment (2004)
Number Rating Functions F1 20 A ECU engine management – Cooling fan F2 15 A Warning F3 10 A Windscreen and rear screen wash F4 20 A Headlamp washer F5 15 A Fuel pump F6 10 A Auto. – Xenon lamps – Directional headlamps – Canister purge electrovalve (2.0 16V engine) F7 10 A ABS ECU/ESP ECU – Power steering F8 20 A Starter F9 10 A Additional heating control unit (Diesel) – Engine coolant level switch F10 30 A Enqine electrovalve – Water-in-diesel-fuel sensor – ECU enqine manaqement -Injectors – Ignition coil – Oxygen sensor – Canister purge electrovalve (1.4 16V and 1.6 16V engines) F11 40 A Air blower – Air conditioning F12 30 A Windscreen wiper F13 40 A Built-in Systems Interface F14 30 A Air pump (engine 2.0i 16V)
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Assignment of the fuses in the Dashboard Fuse box 1 (2008, 2009, 2010)
№ Rating Functions F1 15 A Rear screen wipe F2 30 A Central locking – Deadlocking F3 5 A Airbags and pretensioners F4 10 A Diagnostic socket – Brake switch – Photochromic rear view mirror – ESP – Coolant level sensor – Diesel additive – Clutch pedal switch (ESP, cruise control and speed limiter) F5 30 A Front windows, Heated exterior rear view mirrors F6 30 A Rear windows F7 5 A Interior lighting F8 20 A Multifunction screen, radio, steering wheel controls, Displays – Alarm – Front 12 V socket -Trailer unit – Driving school module F9 30 A Lighter – Rear 12 V socket F10 15 A Deflation detection – Automatic gearbox – STOP switch F11 15 A Ignition switch – Diagnostic socket – Particle filter F12 15 A Electric seat – Lane departure warning system – Parking assistance F13 5 A Rain sensor – Brightness sensor – Electronic gearbox system (6-speed) – Engine relay unit F14 15 A Air conditioning – Instrument panel – Rev counter – Airbags and pretensioners – Trailer unit Bluetooth® telephone F15 30 A Central locking – Deadlocking F16 – SHUNT F17 40 A Heated rear screen
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Assignment of the fuses in the Dashboard Fuse box 2 (2008, 2009, 2010)
Number Rating Functions F36 30 A Hi Fi amplifier F37 30 A Driver’s electric seat F39 20 A Heated seats
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Assignment of the fuses in the Engine compartment (2008, 2009, 2010)
№ Rating Functions F1 20 A Engine management control unit – Cooling fan F2 15 A Horn F3 10 A Front and rear screen wash F4 20 A Headlamp wash F5 15 A Fuel pump F6 10 A Automatic gearbox – Xenon headlamps – Directional headlamps – Canister discharge electrovalve F7 10 A ABS control unit/ESP control unit – Power steering F8 25 A Starter motor F9 10 A Additional heating unit (Diesel) – Engine coolant level switch F10 30 A Engine electrovalve – Water in diesel sensor – Engine management control unit – Injectors -Ignition coil – Oxygen sensor – Canister discharge electrovalve (1.4i 16V and 1.6i 16V engines) F11 40 A Air blower – Air conditioning F12 30 A Windscreen wipe F13 40 A Built-in Systems Interface (BSI) F14 – Not used F15 10 A Right-hand main beam F16 10 A Left-hand main beam F17 15 A Left-hand dipped beam F18 15 A Right-hand dipped beam F19 15 A Engine management control unit (1.4i 16V et 1.6i 16V engines) F20 10 A Engine electrovalve F21 5 A Cooling fan relay – Valvetronic
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Assignment of the fuses on the battery (2008, 2009, 2010)
№ Rating Functions F1 – Not used F2* 30 A Gearbox (electronic system or automatic) F3 – Not used F4 – Not used F5* 80 A Power steering electropump assembly F6‘ 70 A Heating unit (Diesel) F7* 100 A Switching and protection unit F8 – Not used F9* 30 A Electronic gearbox system electropump assembly F10* 30 A Valvetronic electric motor MF1* 30 A / 50 A Cooling fan MF2* 30 A ABS/ESP pump supply MF3* 50 A ABS/ESP control unit MF4* 80 A Built-in systems interface MF5* 80 A Built-in systems interface MF6* 80 A Passenger compartment fuse box MF7* 20 A Diagnostic socket/PEF additive pump MF8* – Not used * The maxi-fuses provide additional protection for the electrical systems. All work on these fuses must be carried out by CITROËN technicians.
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