This electric right rear door lock (central locking actuator) is designed for Citroën C4 5-door models. It replaces the vehicle’s original door latch actuator and restores reliable central locking operation. Mechanics and DIY enthusiasts commonly search by OEM numbers such as 9660700480 and 9138T6 when ordering.

Features And Function

The unit converts electrical signals from the central locking system into mechanical movement that locks and unlocks the right rear door. It contains a compact motor, reduction gears and linkage points to operate the latch. Proper function ensures secure door closure and integration with vehicle remote locking systems.

Common Faults And Symptoms

• Door fails to lock or unlock with central locking or remote control.
• Intermittent operation or slow movement of the lock mechanism.
• Grinding, clicking or unusual noises from inside the door (worn gears or motor fault).
• Manual locking required or door lock stuck in one position.

Replacement And Installation

Typical replacement steps: disconnect the battery, remove the inner door panel and moisture barrier, disconnect the electrical connector and lock linkage, unbolt the actuator from the latch assembly and remove. Fit the new unit, reconnect the linkage and connector, refit the door trim and reconnect the battery. Test central locking and ensure correct latch operation. Recommended for experienced technicians; follow vehicle-specific service manual for torque values and safety precautions.

Compatibility And Fitment Advice

Primarily intended for Citroën C4 5-door models and other PSA group vehicles that use the listed OEM numbers. Always verify fitment by checking the product number on the old part or consulting a parts catalogue before purchase.

Technical Information

• Manufacturer: PSA / Citroën / Peugeot
• Model: Citroën C4 (5-door)
• Product Codes: 9660700480, 9660700480E03
• Other Numbers: 9681337080, 9138N5, 9138T6

This electric central locking actuator is designed for the right rear door of the Citroën C4 5-door. It operates the latch and release mechanism to restore reliable central locking and remote locking functions. Suitable for professional mechanics and DIY enthusiasts when replacing a failed door lock unit.

Features

• Direct replacement for original PSA part numbers.
• Restores central locking and manual opening/closing functions.
• Compact electric motor with integrated gearing and linkage attachment.

Replacement Guide

1. Disconnect the negative battery terminal to prevent short circuits.
2. Remove the inner door trim and moisture barrier to access the lock area.
3. Unplug the electrical connector and detach the linkage rods from the actuator.
4. Remove mounting screws and withdraw the old actuator from the door shell.
5. Install the new actuator, reconnect linkage rods and electrical connector, then test before reassembling trim.

Why It Fails

Common causes of failure include motor wear, stripped internal plastic gears, water ingress and corrosion, seized linkages, and electrical connector faults. Failures are more likely in high-mileage vehicles or those exposed to moisture and road salt.

Typical Lifespan

Actual lifespan depends on use and environment. Many units last several years; failures often occur after extended use (commonly 8–15 years or beyond 100,000 km), but this can vary.

Compatibility

Designed for Citroën C4 5-door. Also listed under PSA Citroën/Peugeot part groups — always verify fitment with part numbers before ordering.

Technical Information

• Manufacturer: PSA (Citroën/Peugeot)
• Model: Citroën C4 5-door
• Product Codes: 9681337080, 9138N5
• Other Numbers: 9660700480E03, 9138T6