Description
Electric central locking lock for the right rear door for Citroën C3 vehicles, 4 pins.
Product Overview
High-quality electric central locking mechanism designed for the right rear door of the Citroën C3. Ideal for professional workshops and experienced DIYers who require a direct-fit replacement using the referenced part numbers. The unit restores reliable remote and central locking operation and is compatible with vehicles using a 4-pin connector for the rear right door lock.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C3
- Product Codes: 56316680, 61427180, 9138K4
- Other Numbers: 4-Pin Connector
Fitment And Compatibility
Designed specifically for the right rear door of Citroën C3 models that use a 4-pin door lock actuator connector. Always verify the connector type and part number before ordering. Common search terms: Citroën C3 right rear door lock, door lock actuator 56316680, 61427180, 9138K4.
Symptoms And When To Replace
Replace the door lock if you observe: intermittent or no locking/unlocking of the right rear door via remote or central locking, mechanical resistance or grinding inside the door, inability to lock/unlock from inside or outside, or electrical faults indicated by fuses or related wiring checks. Audible motor whine without movement often indicates internal gear or actuator failure.
Replacement Procedure
Typical replacement steps for experienced technicians or competent DIYers:
- Disconnect the negative battery terminal before starting work to prevent short circuits and avoid accidental airbag deployment.
- Remove the interior door trim carefully, releasing clips and screws as per manufacturer guidance.
- Peel back the vapor barrier/membrane and disconnect the 4-pin connector from the lock mechanism.
- Unbolt the lock actuator from the door shell and remove the rod/linkage from the latch.
- Install the new lock, connect the linkage and wiring, then secure with the original fasteners.
- Reinstall vapor barrier and door trim, reconnect the battery and test central locking function and mechanical operation multiple times.
Installation Recommendations
- Always disconnect the battery before removal and installation to protect vehicle electronics.
- Handle plastic trim and clips with care to avoid damage; use proper trim tools.
- Check the condition of the door wiring harness and connector for corrosion or damage and clean contacts if necessary.
- After installation, verify central locking cycles and manual locking to ensure correct mechanical adjustment.
- If uncertain about electrical diagnostics, use a multimeter to verify power supply and ground at the connector before replacing the lock.
Reason Why The Part Most Commonly Fails
Door lock actuators typically fail due to a combination of mechanical wear and environmental factors. Common causes include water ingress and corrosion of internal components or electrical connectors, worn gears or seized motor brushes, and damage to linkages from repeated mechanical strain. Lack of lubrication and accumulated dirt inside the latch mechanism also accelerate wear.
Why Choose This Part
Using the correct part number ensures proper fit and function. This unit matches common Citroën C3 rear-right configurations and is well-suited for professional repairs or competent DIY replacements. With correct installation and connector verification, it will restore central locking reliability and door security.
