Description
Product Overview
This electric lock is a direct-fit central locking actuator for the left front door of the Citroën C4 Coupe 3-door (3DV). Designed for use on PSA Citroën and Peugeot vehicles that accept the OEM reference numbers listed below, it operates the door latch mechanism to lock and unlock the door via the vehicle’s central locking system. The part is commonly searched and identified by product numbers such as 9660700780 and 9135FE, so quoting these references helps ensure correct ordering.
Key Features
- Electric central locking actuator for left front door
- OEM Reference: 9660700780 (also referenced as 9135FE)
- Compatible with PSA Citroën/Peugeot central locking systems
- Ideal for professional mechanics and experienced DIYers
Compatibility
Fits Citroën C4 Coupe 3-door (3DV) applications that use the PSA OEM numbers shown. May be compatible with other Peugeot/Citroën models sharing the same actuator part numbers; always verify fitment by cross-referencing the OEM code or consulting the vehicle’s parts catalogue before installation.
Function And Symptoms Of Failure
The actuator converts electrical signals from the central locking module or keyfob into mechanical movement that engages or releases the door latch. Common symptoms indicating actuator failure include:
- Door does not lock or unlock with central locking commands
- Intermittent operation or delayed response
- Grinding or clicking noises from inside the door panel
- Complete loss of locking function on the affected door
Common Causes Of Damage
Typical causes include wear of internal plastic gears or linkages, water ingress leading to corrosion or electrical shorting, damaged wiring or connectors, and impact damage from door collisions. Regular exposure to moisture or mechanical strain accelerates wear on actuator components.
Installation Notes
Replacement requires removing the inner door trim to access the lock assembly. Standard installation steps:
- Disconnect the vehicle battery to avoid short circuits.
- Remove inner door trim and moisture barrier carefully to expose the actuator and latch assembly.
- Disconnect electrical connector and any mechanical linkages from the actuator.
- Unscrew mounting fasteners and remove the old actuator; fit the new unit in the same orientation.
- Reconnect linkages and electrical connector, reassemble the door, reconnect the battery and test locking/unlocking function before final trim refit.
If you are not comfortable with door disassembly or electrical work, have a professional mechanic perform the replacement. Always check wiring and connector condition before installing a new actuator to avoid repeat failures.
Technical Information
Manufacturer: PSA / Citroën / Peugeot
Model: Citroën C4 Coupe 3DV (Left Front Door)
Product Codes: 9660700780
Other Numbers: 9135FE
Notes
Always verify compatibility by matching the OEM number with your vehicle’s parts list. Quoting the part number (9660700780) when searching significantly speeds up finding the correct replacement. This actuator is intended as a direct replacement component for the left front door latch system; ensure connectors and mounting points match before final installation.
