Description
Wiring harness for driver’s seat for Citroën C3 II (A51)
This seat wiring harness is intended for the driver’s seat of Citroën C3 II (A51) and carries power and signal circuits for seat adjustment motors, heating elements, occupancy and position sensors, and related switches. Part number 1608078880 is frequently used as a reference when searching for the correct harness. The description and references make this part easy to find for professional mechanics and experienced DIYers performing seat repairs or replacements.
Key Benefits
– Direct replacement harness for affected driver’s seat functions, restoring electrical continuity and reliable operation of seat motors, heaters and sensors.
– Ideal for workshops and competent DIY installers who need a plug-and-play fitment when connectors and routing match the original installation.
– Improves diagnostics and repair times when the original fault is due to broken wires, damaged connectors or intermittent contacts at flex points.
Fitment And Use
Designed for Citroën C3 II (A51) vehicles. Common search reference: 1608078880. Use this harness to replace damaged or worn seat wiring that causes failures in seat adjustment, seat heating, occupancy detection or related switches. Always confirm physical match of connectors and harness routing during installation.
How The Part Works
The harness routes power and signals between the vehicle body and the moving seat assembly. It contains conductors and connector bodies for seat adjustment motors (fore/aft, recline), seat heating pads, occupancy/weight sensors used by the airbag system, and switches on the seat. Correct routing and secure fixation prevent excessive flexing and abrasion where the harness passes over the seat rails.
Replacement Procedure (Overview)
1. Disconnect the negative battery terminal and wait the recommended time for SRS capacitors to discharge.
2. Move the seat to gain access to fixings and connectors; remove trim covers as necessary.
3. Unbolt and carefully lift the seat enough to access under-seat connectors. Support the seat to avoid strain on wiring.
4. Unplug all seat harness connectors, noting clip positions and connector orientation.
5. Remove the old harness from its clips and routing channels; install the new harness following the original routing to avoid sharp edges and pinch points.
6. Reconnect all connectors, secure harness with original clips or suitable replacements, re-bolt the seat and reconnect the battery.
7. Verify all seat functions (adjustment, heating, sensors) and clear any related fault codes if required.
Installation Recommendations
– Always disconnect the battery before starting work and follow manufacturer SRS precautions to avoid accidental airbag deployment.
– Inspect connectors and pin contacts for corrosion or damage; clean or replace connectors if necessary.
– Use original clip points or equivalent fastenings to prevent the harness rubbing on metal edges or seat rails.
– After installation, check electrical functions and perform a visual inspection of harness routing during full seat travel to ensure there is no snagging or over-stretching.
– If the vehicle records airbag or occupant-sensor faults after replacement, follow OEM diagnostic and reset procedures.
Common Causes Of Failure
– Repeated seat movement causes flex-fatigue of wires at the seat rail exit points, leading to broken conductors.
– Connector corrosion from moisture ingress or spills, producing intermittent contacts or open circuits.
– Mechanical damage during seat removal/installation or from foreign objects trapped near the rails.
– Wear to insulation and chafing where the harness is not properly routed or clipped.
Technical Information
Manufacturer: Stellantis / Citroën
Model: Citroën C3 II (A51)
Product Codes: 1608078880
Additional Numbers: No additional references available
Why Choose This Part
When seat functions such as electric adjustment, heating or occupancy detection become unreliable, replacing the harness at the known failure points is often the most effective repair. Using the correct reference number (1608078880) helps quickly locate the compatible harness and reduces workshop downtime.
Notes For Professionals
Intended for professional mechanics and skilled DIY installers. Ensure connector pinouts and harness routing match the specific vehicle trim and options. If in doubt about airbag or occupant-sensor faults after installation, follow Citroën diagnostic procedures and use appropriate diagnostic tools to clear and verify fault codes.
