Description
Electric central locking actuator for the right rear door for Citroën C4 5-door — passenger-side rear door.
This replacement electric door lock is designed for the right rear door of the Citroën C4 5‑door and is an ideal choice for professional workshops and experienced DIY mechanics. It restores reliable central locking operation: locks and unlocks with the vehicle remote and interior switches, secures the door latch and interacts with the vehicle’s central locking system. The unit is often searched by its reference numbers (9660700280, 9681336880, 9647175080 or manufacturer short codes 9138F2 / 9138T5 / 9138N4), so including these codes in the listing helps customers find the correct part quickly.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 (5‑door) — Right Rear Door (Passenger‑Side Rear)
- Product Codes: 9681336880, 9660700280, 9647175080
- Additional Numbers: 9138F2, 9138T5, 9138N4
Key Features And Benefits
- Direct replacement for the right rear door lock mechanism on Citroën C4 5‑door models.
- Restores full central locking functionality — remote locking/unlocking and door switch control.
- Includes standard electrical connector and mechanical linkage interface for straightforward fitment.
- Commonly cross-referenced by several OEM numbers, improving chances of correct ordering.
Installation Recommendations
Replacement is straightforward for experienced technicians and competent DIYers. Typical procedure:
- Disconnect the vehicle battery before starting work to avoid short circuits and unintended activation.
- Remove the inner door trim and vapor barrier to access the lock module and linkage.
- Disconnect the electrical connector and detach the mechanical linkages (note clip positions for reassembly).
- Unbolt the old lock unit, install the new unit in the same orientation, reconnect linkages and electrical connector.
- Test locking/unlocking operation with the remote and door switch before reinstalling the door trim.
- Check and lubricate moving linkages and latch points for smooth operation; replace any brittle clips or fasteners.
Why The Part Fails Most Often
- Wear Of Internal Gears Or Motor: Plastic gears and small DC motors inside actuators can wear or jam after prolonged use.
- Water Ingress And Corrosion: Moisture entering the door can corrode connectors or cause motor failure and sticking mechanisms.
- Broken Linkage Clips Or Bent Rods: Mechanical linkages and retaining clips can break, causing poor engagement or intermittent operation.
- Electrical Connector Problems: Corrosion, loose pins, or wiring damage can result in no power to the actuator or intermittent faults.
Practical Tips
- Always Test Before Finishing: Verify lock operation with the door trim removed to avoid having to reopen the door later.
- Inspect Latch And Striker: A misaligned striker or worn latch can overload the actuator; correct alignment to extend component life.
- Replace Damaged Clips: Small plastic clips are inexpensive but critical for correct linkage function — replace if brittle or broken.
Compatibility And Search Tips
Search by the listed product codes (9660700280, 9681336880, 9647175080) or short codes (9138F2, 9138T5, 9138N4) to quickly locate this exact right rear door lock for Citroën C4 5‑door models. Including both the vehicle model and these reference numbers in your search will increase the chances of finding the correct replacement part.
