Description
Electric central locking actuator for the right front door Citroën C3, 4 pins.
This replacement electric door lock/actuator restores reliable central locking and secure operation of the right front door on Citroën C3 vehicles. Designed with a 4-pin electrical connector and OEM cross-reference numbers 46983280 and 9136N7, the unit is aimed at professional technicians and experienced DIYers who need a direct-fit solution to fix door locking faults. Replacing a worn or faulty actuator eliminates intermittent locking, door not locking/unlocking from remote, and unusual noises coming from inside the door panel.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C3
- Product Codes: 46983280, 9136N7
- Other Numbers: NFP
Fitment
Intended for the Right Front Door of Citroën C3 models that use a 4-pin central locking actuator. Check connector type and mounting points before installation to ensure correct fit.
Installation Recommendations
Follow these steps to replace the actuator safely and efficiently (for experienced technicians and competent DIYers):
- Disconnect the vehicle battery to prevent short circuits and accidental airbag deployment.
- Carefully remove the interior door trim and any clips—use panel tools to avoid damage.
- Peel back the moisture barrier (vapour foil) to access the inner door cavity.
- Locate and unplug the 4-pin electrical connector from the actuator; inspect the connector and wiring for corrosion or damage.
- Remove the mounting screws/bolts that secure the actuator to the door or lock assembly and extract the old unit.
- Install the new actuator in the correct orientation, secure fasteners, and reconnect the electrical connector. Use a small amount of dielectric grease on contacts if exposed to moisture.
- Test central locking operation (remote and lock/unlock switch) before reassembling the door trim.
- Reinstall the moisture barrier and interior trim, ensuring all clips and screws are refitted correctly.
Use basic workshop tools and take care with trim clips and door wiring. If plastic gears inside the lock are visible or the mechanism is heavily corroded, replace the entire actuator rather than attempting partial repairs.
Common Causes Of Failure
- Water Ingress And Corrosion: Moisture entering the door cavity causes connector corrosion and electrical faults.
- Mechanical Wear Or Broken Plastic Gears: Repeated use or forced operation can damage internal gears, causing loss of movement or grinding noises.
- Motor Or Electrical Faults: Worn DC motor brushes or internal electrical faults lead to intermittent operation or total failure.
- Connector Damage Or Wiring Faults: Bent pins, loose connectors or damaged wires prevent power reaching the actuator.
- Physical Impact: Door damage from accidents or heavy impacts can deform the lock assembly and disable the actuator.
Service Life And Tips
Service life depends on usage and environmental exposure; actuators commonly last several years but may fail sooner in vehicles regularly exposed to moisture, salt, or heavy use. Regular inspection of door seals, timely replacement of worn seals, and keeping connectors clean and dry will extend the life of the actuator.
Order this 4-pin right front door actuator (OEM codes 46983280, 9136N7) to restore full central locking function on compatible Citroën C3 vehicles. Clear fitment and straightforward installation make it a practical repair for workshops and skilled DIYers.
