Description
Electric central locking left rear door lock designed for Citroën C4 5-door models. This compact, direct-fit latch replaces the factory unit to restore reliable locking and unlocking functions. Suitable for professional mechanics and experienced DIYers who service PSA vehicles.
The unit integrates the mechanical latch and electric actuator to operate the central locking system. It connects to the vehicle harness via the original plug and mounts to the inner door structure using the OEM bolt locations. Typical functions include secure door latching, remote central locking actuation, and manual unlocking from inside.
Common Failure Modes and Service Notes:
- Actuator motor wear or failure after extended use or exposure to moisture.
- Corrosion of mechanical parts or electrical contacts leading to intermittent operation.
- Broken latch pawls or linkage caused by impact or mechanical fatigue.
- Symptoms prompting replacement: door not locking/unlocking electrically, rattling inside the door, or inability to latch securely.
Replacement Overview (General Guidance):
- Disconnect the negative battery terminal before any work on the central locking system.
- Remove the inner door trim and vapor barrier to access the latch assembly.
- Support the window if required, then disconnect the electrical connector and unhook any linkages to the interior handle and lock rods.
- Unbolt the latch from the door and replace with the new unit, reconnecting linkages and the electrical plug.
- Reinstall the door trim, reconnect the battery, and test locking/unlocking from the remote, driver’s master switch and interior handle.
Always verify fitment by comparing part numbers and the connector type before installation. If the door has water ingress or rusted mounting points, address those issues to prevent premature failure of the new lock.
Technical Information
- Manufacturer: PSA (Citroën/Peugeot)
- Model: Citroën C4, 5-door
- Product Codes: 9660700380, 9137E0
- Additional Numbers: 9681336980, 9137K5, 9137Q2
If you are unsure about compatibility, cross-check these numbers with your vehicle’s VIN or consult the vehicle parts catalog. Fast replacement of a faulty left rear door lock restores vehicle security and prevents further damage to door mechanisms.
