Description
Wiring harness for the front passenger seat for Citroën C3 II A51 vehicles.
This listing is for a used OEM wiring harness designed for the front passenger seat of the Citroën C3 II (A51). Part number 1608078780 is commonly used to identify this assembly during searches — ideal for professional mechanics and experienced DIY enthusiasts who need a direct-fit seat electrical loom that restores seat functions such as airbag connection, seat-belt buckle sensor, occupancy detection, heating and adjustment motors. The harness is a direct replacement for worn or damaged seat wiring and helps eliminate intermittent faults, SRS warnings and non-working seat heaters or motors.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C3 II (A51) — Passenger Front Seat
- Product Codes: 1608078780
- Additional Numbers: NFP (as indicated in source information)
Compatibility
Fits Citroën C3 II models with A51 body designation for the passenger front seat electrical system. Always verify the part number 1608078780 against the vehicle’s existing harness to ensure correct fitment before installation.
Function And Typical Features
The seat wiring harness connects multiple electrical components inside the passenger seat to the vehicle wiring harness. Typical circuits routed by this loom include:
- Airbag (SRS) connector for the passenger airbag
- Seat-belt buckle sensor and pretensioner circuit
- Occupancy/weight sensor (OCC) for airbag suppression logic
- Seat heating elements and temperature sensor connections
- Seat adjustment motor connectors (where applicable)
Installation Recommendations
- Always disconnect the vehicle battery and wait the manufacturer-recommended time before starting work to avoid accidental airbag deployment.
- Remove seat trim and unscrew seat mounting bolts to access connectors and routing points. Keep track of fasteners and clips for reassembly.
- Handle SRS connectors with extreme care; avoid pulling on wires — release connector locks first.
- Route the new harness following the original cable routing, secure with OEM clips or equivalent ties, and ensure no wires are pinched by seat rails or moving parts.
- After installation, check all seat functions (airbag lamp, buckle sensor, heating, seat motors). If an SRS fault appears, consult diagnostic equipment to read and clear codes — professional intervention may be required.
- If unsure about SRS-related work, have the installation performed or checked by a qualified technician with appropriate diagnostic tools.
Why This Part Most Often Fails
- Mechanical fatigue and chafing where the harness crosses the seat rails and hinges — repeated seat movement causes wire breakage over time.
- Connector corrosion from moisture ingress or spills, leading to intermittent contact and error codes.
- Damage during previous repairs or incorrect disassembly (pulling on wires, broken clips).
- Wear of insulation near high-flex points, especially on seats with frequent adjustment or heavy use.
Notes
Part number 1608078780 is frequently used when searching for this harness. The harness is intended for users familiar with seat electrical systems and SRS safety precautions. Proper installation restores reliable seat function and eliminates related warning lights and faults.
