Description
Description
Electric central locking left front door lock for the Citroën C4 five-door (driver side). This unit is a direct-replacement latch and actuator assembly, commonly referenced by OEM numbers 9681331680 and 9135Z5. It operates the door locking mechanism, secures the door shut and interfaces with the vehicle’s central locking system.
Key Features
- Complete electric latch and actuator assembly for left front (driver side) doors.
- Direct OEM fit for compatible Citroën/Peugeot models using the listed part numbers.
- Designed to interface with standard PSA central locking systems and door linkages.
- Often searched and ordered by product numbers for precise fitment.
Common Symptoms And Causes Of Failure
Typical signs that the door lock needs replacement include the door not locking or unlocking with the remote or central locking switch, intermittent locking operation, a loud or grinding noise when locking, or door not staying closed. Failures are usually caused by worn actuator motors or gears, broken plastic components, water ingress leading to corrosion, damaged linkage or connectors, or electrical faults in the wiring harness. Faults in the central locking control module can produce similar symptoms and should be checked if electrical issues persist after replacement.
Replacement And Fitment Notes
This lock is intended for Citroën C4 five-door models on the driver side. Always confirm fitment by comparing OEM part numbers before ordering. The part is commonly cross-referenced under multiple PSA numbers, so searching by any of the codes listed below helps ensure correct selection.
Installation Overview (Mechanic / DIY)
Basic replacement steps for experienced technicians or competent DIYers:
- Disconnect the negative battery terminal to prevent short circuits.
- Remove the inner door trim panel (retain screws and clips) and carefully peel back the water/vapor barrier.
- Disconnect the electrical connector from the lock actuator and unclip any locking rods or linkages from the latch mechanism.
- Unscrew the latch mounting bolts and remove the old lock assembly from the door shell.
- Transfer any required clips or rods to the new unit if not supplied assembled, fit the new lock, tighten mounting bolts, reconnect linkage and the electrical connector.
- Reconnect the battery, test locking/unlocking operation (remote and manual), then reassemble the door trim and ensure all functions operate correctly.
Practical Tips
- Inspect wiring and connectors for corrosion before installing the new lock; cleaning or repairing connectors can prevent future faults.
- If water ingress caused the failure, check door seals and drainage holes to prevent recurrence.
- Test the central locking function before refitting the door card to avoid repeating removal steps.
Technical Information
- Manufacturer: PSA / Citroën / Peugeot
- Model: Citroën C4 (5-Door) — Driver Side
- Product Codes: 9681331680, 9135Z5
- Additional Numbers: 9681337180, 9660699880 F03, 9647172780 F03, 9683416080, 9135FA, 9135R0
