Description
Overview
Electric central locking mechanism for the left front door of the Citroën C4 5-door. This unit operates the door latch and integrates with the vehicle’s central locking system. It is commonly identified by OEM part numbers and is intended for both professional workshops and competent DIYers who search by part number to find a correct replacement.
Function and Common Failures
The assembly contains an electric actuator and mechanical latch that lock and unlock the door. Typical failure modes include worn or broken plastic gears, actuator motor burnout, water ingress and corrosion, connector or wiring faults, and mechanical wear of the latch. Symptoms of a failing unit are a door that won’t lock or unlock, intermittent operation, a noisy actuator, or the door catching when closing.
Replacement & Installation
Replacement is straightforward for experienced technicians. Typical steps: disconnect the negative battery terminal; remove the inner door trim and any trim clips; peel back the moisture barrier; disconnect the electrical connector and release linkage rods; unbolt and remove the old lock module; fit the new unit, reconnect linkages and connector; test locking/unlocking before reassembling the door trim. Inspect door wiring and moisture seals while the door is open to prevent repeat failures.
Compatibility & Fitment
Designed for Citroën C4 5-door models, left front (driver’s side). Fitment should be confirmed by matching OEM part numbers listed below. If in doubt, compare the physical connector and mounting points or consult vehicle parts lists to verify compatibility with related PSA models.
Technical Information
- Manufacturer: PSA Citroën/Peugeot
- Model: Citroën C4 (5-door)
- Product Codes: 9683416080; 9135FA
- Additional Numbers: 9681337180; 9660699880 F03; 9647172780 F03; 9135Z5; 9135R0
Order by OEM part number to ensure a correct match. Suitable for mechanics and experienced DIY repairs. If you experience intermittent locking problems, check wiring and moisture seals in addition to replacing the lock unit.
