Learn about Citroën C8 2009-2014 fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.
The Citroën C8 (2009-2014) is a spacious and versatile multi-purpose vehicle (MPV) designed to accommodate up to seven passengers. Available in various body styles, it focuses on family-oriented features, with sliding doors, ample cabin space, and practical design elements for long journeys. Key features include comfortable seating, flexible rear configurations, and modern entertainment systems. The electrical system of the Citroën C8 plays a vital role in supporting its advanced technology and convenience features.
The fuse box and relay systems are crucial in maintaining the vehicle’s electrical functions, such as the power windows, lighting, and climate control. Located in the engine compartment and cabin, these components protect electrical circuits from overloads and ensure smooth operations of various systems. Regular inspection of the fuse box and relays can help prevent electrical malfunctions in this MPV.
MUST READ: DYI – How to Check Car Fuses?
(2009-2014) Citroën C8 fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Citroën C8 2009-2014 fuse assignment
- Cigar lighter (power outlet) fuses in the Citroen C8 are the fuse №9 (Cigarette lighter) in the Instrument panel fuse box, and fuses №39 (12 V accessory socket row 3) and №40 (12 V accessory socket row 2) on the battery.
Year of production: from 2009, 2010, 2011, 2012, 2013, 2014
Instrument panel fuse box
Fuse box location
Left-hand drive vehicles:
Open the lower glove box on the right-hand side, pull the handle to open the cover.
Right-hand drive vehicles:
Fuse box diagram
Assignment of the fuses in the Instrument panel
| № | Rating (Amps) | Functions |
|---|---|---|
| 1 | 15 | Rear wiper. |
| 2 | – | Not used. |
| 3 | 5 | Airbag control unit. |
| 4 | 10 | Steering wheel angle sensor, Diagnostic socket, ESP sensor, Manual air conditioning, Clutch switch, Headlamp beam height, Particle emission filter pump, Electrochromatic interior mirror. |
| 5 | 30 | Electric mirrors, Passenger’s electric window motor, Sunroof row 1. |
| 6 | 30 | Front electric windows supply. |
| 7 | 5 | Courtesy lamps, Glove box lamp, Courtesy mirror lamps, Entertainment screen lamps row 2. |
| 8 | 20 | Multifunction display, Anti-theft alarm siren, Audio equipment, Compact disc changer, Audio/ telephone, Diesel additive control unit, Tyre under-inflation detection control unit, Sliding doors module control unit. |
| 9 | 30 | Cigarette lighter. |
| 10 | 15 | Steering wheel switching, Trailer fusebox. |
| 11 | 15 | Diagnostic socket, Ignition switch, Automatic gearbox (4-speed). |
| 12 | 15 | Driver’s seat memory unit, Passenger’s electric seat, Airbag control unit, Parking sensors control unit, Sliding side door buttons, Hands-free kit, Automatic gearbox (6-speed). |
| 13 | 5 | Engine fuse box, Trailer fusebox. |
| 14 | 15 | Rain sensor, Automatic air conditioning, Instrument panel, Sunroofs, Odometer warning lamps unit, Audio-telematics control. |
| 15 | 30 | Passenger’s lock locking. |
| 16 | 30 | Locking/unlocking of the doors. |
| 17 | 40 | Heated rear screen. |
Engine compartment fuse box
Fuse box location
It is located in the engine compartment, to the left of the coolant reservoir.
Fuse box diagram
Assignment of the fuses in the Engine compartment
| № | Rating (Amps) | Functions |
|---|---|---|
| 1 | 20 | Engine control unit, Fuel supply and air supply systems, Fan assembly. |
| 2 | 15 | Horn. |
| 3 | 10 | Front and rear wash-wipe pump. |
| 4 | 20 | Headlamp wash pump. |
| 5 | 15 | Fuel supply system. |
| 6 | 10 | Power steering, Secondary brake pedal switch, Automatic gearbox control unit, Air flow sensor, Automatic beam corrector with xenon bulbs. |
| 7 | 10 | Braking system (ABS/ESP). |
| 8 | 20 | Starter control. |
| 9 | 10 | Main brake switch. |
| 10 | 30 | Fuel supply and air supply systems, Emission control systems. |
| 11 | 40 | Front air conditioning. |
| 12 | 30 | Windscreen wipers. |
| 13 | 40 | Built-in systems interface. |
| 14 | 30 | Not used. |
| 15 | 30 | Child lock locking/unlocking/deadlocking control. |
Battery compartment fuses
Fuse box location
The fuses are located in the battery compartment, housed underneath the floor in front of the seat on the right-hand side.
Fuse box diagram
Assignment of the fuses on the battery
| № | Rating (Amps) | Functions |
|---|---|---|
| 1* | 40 | Electric sliding side door. |
| 2* | 40 | Electric sliding side door. |
| 3* | – | Not used. |
| 4* | 40 | Trailer fusebox. |
| 31 | 5 | Main brake switch. |
| 32 | 25 | Driver’s seat memorisation. |
| 33 | 25 | Passenger’s seat memorisation. |
| 34 | 20 | Sunroof row 3. |
| 35 | 20 | Sunroof row 2. |
| 36 | 10 | Passenger’s heated seat. |
| 37 | 10 | Driver’s heated seat. |
| 38 | 15 | Not used. |
| 39 | 20 | 12 V accessory socket row 3. |
| 40 | 20 | 12 V accessory socket row 2. |
| * The maxi-fuses provide additional protection for the electrical systems. All work must be carried out by a CITROËN dealer |
Conclusion
For owners and enthusiasts of classic Citroën C8 2009-2014, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Citroën’s craftsmanship and innovation in the automotive industry during that era.
