Description
Overview
The electric central locking actuator for the left front door controls the mechanical lock and communicates with the vehicle’s central locking system. It is intended for Citroën C4 3DV (C4 Coupe 3-door) applications and is commonly found on PSA group vehicles. The unit is suitable for professional workshops and experienced DIYers who perform body electrical repairs.
Features
- Direct replacement for OEM part numbers 9660700780 and 9135FE.
- Drives the locking mechanism when commanded by the central locking module or remote.
- Compact electric motor with gearset designed for frequent cycles and reliable operation.
Installation
Always disconnect the negative battery terminal before starting any electrical work. Typical replacement steps:
- Remove the interior door trim using trim tools to avoid damage.
- Disconnect the electrical connector and any vacuum or sensor lines if present.
- Detach linkage rods or clips connected to the lock mechanism.
- Unbolt or unclip the actuator, install the new unit, reconnect linkages and wiring, then test operation before reassembling the door panel.
Common tools: Torx and Phillips drivers, trim removal tools, pliers and a small ratchet set.
Common Faults and Lifespan
Failures are usually caused by worn internal gears, motor burnout, water ingress or corroded electrical connectors. Symptoms include intermittent locking/unlocking, no response to remote or central locking, grinding or clicking noises from the door, or the door not latching correctly. Proper sealing of the door and clean electrical connections extend service life; inspect the actuator and wiring during routine maintenance.
Technical Information
Manufacturer: PSA Citroën Peugeot
Model: Citroën C4 Coupe 3-door (C4 3DV)
Product Codes: 9660700780
Additional Numbers: 9135FE
Compatibility & Notes
Confirm compatibility by comparing the OEM number 9660700780 with the part on your vehicle before purchase. While many PSA vehicles share similar components, exact fitment may vary by year and trim. After replacement, confirm central locking operation; in rare cases involving vehicle security modules, professional diagnostic tools or coding may be required. This part is aimed at mechanics and competent DIYers familiar with door trim removal and basic electrical checks.
