Description
Electric Tailgate Lock For Citroën And Peugeot Vehicles
This electric tailgate lock is a direct-fit replacement for a range of Citroën and Peugeot models. Designed for professional garages and competent DIY enthusiasts, the unit restores reliable locking and remote central locking function of the rear hatch. Supplied with OEM part references 9646091580 and 871972, the latch assembly is suitable for applications where the original electric actuator or mechanical lock has failed, stuck or become corroded.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën Berlingo, C2, C3, C4, C5, C8, Xsara Picasso; Peugeot 206, 307, 406, 607, 807, Partner
- Product Codes: 9646091580, 871972
- Other Numbers: No additional reference numbers provided
Function
The tailgate lock assembly secures the rear hatch and interfaces with the vehicle’s central locking and remote locking systems. It contains the mechanical latch and an electric actuator that releases the catch when a remote command or interior release is used. Correct operation ensures the tailgate stays closed at speed and opens reliably when requested.
How To Replace (Overview)
Replacement is straightforward for a trained mechanic or experienced DIYer with basic tools:
- Prepare: Park on level ground and ensure vehicle is stable. Remove any cargo from the luggage area.
- Safety First: Disconnect the negative battery terminal before starting work to prevent short circuits and accidental actuation.
- Access: Remove the interior tailgate trim panel to expose the lock assembly and wiring harness. Retain any clips or screws for reassembly.
- Disconnect: Unplug the electrical connector(s) from the lock actuator and release any cable linkages to the interior handle or key cylinder.
- Remove: Unscrew the mounting bolts and remove the old lock assembly from the tailgate.
- Fit New Unit: Position the new lock assembly, secure with bolts, reconnect wiring and linkages. Check that the latch striker aligns correctly.
- Test: Reconnect the battery and test locking/unlocking with the remote, interior switch and manual release. Verify proper closing and sealing of the tailgate before reattaching trim.
Recommended Installation
- Always disconnect the battery before removal and follow the manufacturer’s procedures to avoid damage to the electrical system.
- Inspect the tailgate striker and surrounding fittings for wear or deformation and replace/adjust if necessary to avoid premature wear of the new lock.
- Ensure connectors are clean and corrosion-free. Apply dielectric grease to connectors if exposed to moisture.
- After installation, operate the lock several times and check for smooth action; adjust striker position if catching or misalignment occurs.
Why This Part Fails Most Often
Common failure modes include water ingress and corrosion of the mechanical latch or actuator, mechanical wear of internal components, broken or fatigued actuator motors, and cable or linkage failure from repeated use. Moisture and road salt accelerate corrosion, especially where seals or drainage channels are blocked. In some cases, misalignment between the latch and striker causes excess load on the actuator and premature failure.
Notes For Professionals And DIYers
This part is intended for vehicles listed under the model section; always verify the part numbers against the existing unit before fitting. If the tailgate also has electrical faults (blown fuses, intermittent operation), inspect wiring and central locking components to exclude upstream issues before replacing the lock.
