Description
Electric central locking actuator for the left front door for CITROËN C4 5-door first series. Driver’s door.
Overview
This electric door lock actuator is designed for the left front (driver’s) door of the Citroën C4 5‑door, first series. It operates the central locking mechanism, allowing remote and central locking/unlocking of the door latch. The part is commonly searched by OEM numbers such as 9681331680 and 9135Z5, which helps technicians and DIY enthusiasts find the correct replacement quickly.
Function
The actuator converts electrical signals from the central locking system into mechanical movement to engage or release the door latch. It contains a small electric motor and gear mechanism that moves the locking rod or latch assembly. When functioning correctly, it ensures reliable locking and unlocking via remote control, door switches or automatic locking routines.
Compatibility
- Citroën C4 First Series (5‑door) – Left Front / Driver’s Door
- OEM and Cross Reference Numbers Found In Search: 9681331680, 9135Z5, 9681337180, 9660699880, 9647172780, 9683416080, 9135FA, 9135R0
Replacement Procedure
Basic replacement steps for experienced technicians or competent DIYers:
- Remove the interior door trim panel to access the lock mechanism (remove screws, clips and window switch bezel as required).
- Disconnect the electrical connector from the actuator and release any retaining clips or screws fixing the actuator to the latch assembly.
- Detach linkage rods or cables from the actuator (note their orientation for reassembly).
- Fit the new actuator, reconnect linkages and electrical connector, and secure with original fasteners.
- Reinstall the door trim and test central locking operation (cycle remote and manual locks to confirm correct function).
Why The Part Fails Most Often
- Wear Of Internal Motor Or Gears: Plastic gears can wear or strip over time, causing slipping or complete loss of movement.
- Water Ingress And Corrosion: Moisture entering the door can corrode contacts or seize moving parts.
- Connector Corrosion Or Wiring Faults: Poor electrical connection leads to intermittent operation or no power to the actuator.
- Mechanical Damage Or Jamming: Impact, misalignment or debris in the latch can overload the actuator and cause failure.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 First Series (5‑door) – Left Front / Driver’s Door
- Product Codes: 9681331680, 9135Z5
- Additional Numbers: 9681337180, 9660699880 F03, 9647172780 F03, 9683416080, 9135FA, 9135R0
Installation Recommendations
- Perform The Replacement On A Stable, Level Surface With The Vehicle Secured.
- Before Starting Work, Isolate Any Convenience Power (remove key from ignition) And follow standard safety practice. Disconnecting the battery is recommended when working on electrical components to avoid short circuits and unintended activation.
- Inspect Door Wiring And Connector For Corrosion Or Damage; Repair Any Faulty Wiring Before Installing The New Actuator.
- Lubricate Moving Latch Parts Lightly With Manufacturer‑Recommended Grease To Reduce Stress On The New Actuator.
- After Installation, Test Full Locking/Unlocking Cycle And Check Manual Operation To Ensure Correct Linkage Adjustment.
Notes For Buyers
Part numbers such as 9681331680 and 9135Z5 are commonly used to locate this actuator. Verify fitment against the vehicle model and door position (Left Front / Driver’s Door). The actuator is intended for the first series Citroën C4 5‑door; ensure the part orientation matches the original before final installation.
