Description
Electric Central Locking Actuator For The Left Rear Door For Citroën C3 Vehicles. 4 Pins.
Product Overview
This electric central locking actuator fits the left rear door of Citroën C3 models and replaces the internal locking mechanism responsible for remote and central locking operation. The unit connects via a 4-pin electrical connector and interfaces with the door latch and mechanical linkages to lock and unlock the door on command. Ideal for professional workshops and DIY mechanics who search by part number for quick fitment.
Key Features And Function
- Direct Replacement For Factory Door Lock Actuator On Left Rear Door.
- 4-Pin Electrical Connector For Standard Citroën C3 Wiring Harness.
- Operates The Latch Mechanism To Perform Central Locking And Remote Lock/Unlock Commands.
- Designed To Integrate With Existing Door Linkages And Latch Assembly.
How It Fails And Typical Symptoms
Common failure modes include motor or gear wear inside the actuator, water ingress and corrosion of internal components or connector pins, broken plastic gears or linkages, and intermittent electrical contact due to connector or wiring damage. Symptoms usually include the door failing to lock or unlock with the central locking system, unusual noise coming from the door when operating locks, or the latch not engaging fully.
Replacement Procedure (High-Level)
Remove Interior Door Trim: Carefully detach the door panel and any clips avoiding damage to trim and wiring. Remove The Moisture Barrier: Peel back the vapour/moisture sheet to access the latch area. Disconnect Electrical Connector: Unplug the 4-pin connector from the actuator. Detach Mechanical Linkages: Carefully unhook rods or clips connecting the actuator to the latch. Unbolt The Actuator: Remove mounting screws/bolts and extract the old unit. Install New Unit: Fit the replacement actuator, reconnect linkages and the 4-pin connector, then test central locking operation before reassembling the door trim.
Installation Recommendation
Always Disconnect The Battery Before Starting Work On Door Electronics To Avoid Short Circuits Or Unintended Airbag Deployment. Use Correct Tools To Avoid Damaging Plastic Clips And Connectors. After Installation, Test All Locking Functions (Remote, Central Lock, Manual) Several Times With The Door Open And Closed To Ensure Proper Latch Engagement. If The Vehicle Exhibits Electrical Fault Codes After Replacement, Diagnose Wiring And Grounding Points; Repair Should Be Performed By A Technician If Advanced Diagnostics Or Steering Column/Immo Adaptation Is Required.
Technical Information
- Manufacturer: Citroën (Stellantis)
- Model: Citroën C3
- Product Codes: 56316780, 61427280, 9137H5, 9137E1
- Additional Numbers: 4-Pin Connector
Why This Part Most Commonly Fails
Frequent Exposure To Moisture And Road Contaminants Leads To Corrosion And Mechanical Wear Inside The Actuator. Repeated Use Over Time Causes Plastic Gears To Strip Or Electric Motors To Weaken. Faulty Or Loose Electrical Connections And Damaged Wiring Are Also Typical Causes Of Failure. Preventive Measures Include Ensuring Door Seals Are Intact And Avoiding Water Entry Into The Door Cavity.
