Description
Electric central locking actuator for the right rear door for Citroën C3 — 4 Pins
Restore reliable central locking on your Citroën C3 with this electric right rear door lock actuator. Ideal for professional mechanics and DIY enthusiasts, this direct-fit unit replaces worn or faulty actuators that cause one-door locking failures, intermittent operation, or audible motor/gear noises. Commonly searched under OE references 56316680, 61427180 and 9138K4, this 4-pin actuator is a practical replacement part that helps get the door locking mechanism working smoothly again.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C3 (Right Rear Door)
- Product Codes: 56316680, 61427180, 9138K4
- Other Numbers: 4-Pin Electrical Connector
Installation Recommendations
- Always Disconnect Battery Before Starting Work To Avoid Short Circuits And Electronic Faults.
- Remove Interior Door Trim And Protective Vapor Barrier To Access The Lock Mechanism.
- Carefully Unclip Electrical Connector (4-Pin) And Detach Mechanical Linkages (Rods) From The Lock Assembly; Note Their Positions For Reinstallation.
- Unscrew Fasteners Securing The Lock Unit, Replace With The New Actuator, Reattach Rods And Connector, Then Test Locking/Unlocking Operation Before Reassembling The Door Panel.
- Use Mild Grease On Mechanical Linkages And Check Door Seal And Drain Channels To Prevent Water Ingress.
- Test Remote Central Locking And Manual Locking Several Times To Confirm Correct Operation.
Why The Part Commonly Fails
- Wear Of Plastic Gears Or Electric Motor Over Time From Frequent Use.
- Corroded Or Dirty Electrical Contacts Causing Intermittent Operation.
- Water Ingress Due To Damaged Door Seals Or Blocked Drainage, Leading To Corrosion And Motor Failure.
- Mechanical Damage From Accidents Or Forced Entry That Misaligns The Latch.
- Broken Or Disconnected Linkage Rods That Prevent Proper Latch Movement.
This actuator is a targeted replacement for right rear door central locking faults on Citroën C3 vehicles and is frequently searched by its OE numbers (56316680, 61427180, 9138K4). Choosing the correct 4-pin unit will return quiet and reliable locking action and reduce diagnostic time in the workshop.








