Description
Electric central locking actuator for left rear door for Citroën C4 5-door
Product Overview
This electric central locking actuator is intended for the left rear door of the Citroën C4 5-door. It restores reliable locking and unlocking of the door via the central locking system and is often searched for by OEM part numbers, making it quick to find in repair shops and online catalogs. The part is suitable for mechanics and experienced DIYers who need a direct-fit replacement unit.
Key Benefits
- Direct replacement for the left rear door latch mechanism.
- Compatible with common Stellantis part numbers, simplifying parts lookup.
- Quick installation when following standard door trim removal procedures.
- Improves door locking reliability and eliminates intermittent locking faults.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4 5-door
- Product Codes: 9681337180, 9137Q3
- Other Numbers: 9686733680, 9137K6
How It Works
The actuator converts electrical commands from the central locking system into mechanical motion that moves the latch and locking rods. When the vehicle receives a lock or unlock signal, the actuator motor and gear train shift the latch position, engaging or releasing the door lock.
Common Failure Causes
- Water Ingress: Moisture entering the door cavity can corrode contacts or damage internal gears and the motor.
- Mechanical Wear: Plastic gears and linkages wear over time, leading to slipping or jamming.
- Connector Corrosion Or Wiring Damage: Poor electrical contact or broken wires cause intermittent or total failure.
- Broken Rods Or Clips: Physical damage to connecting rods or retaining clips prevents proper actuation.
- Age And Usage: Repeated cycles and long-term exposure to temperature changes accelerate wear.
Installation Recommendations
- Disconnect The Battery Before Starting Work To Avoid Short Circuits And Unintended Airbag Deployment.
- Remove The Interior Door Trim Carefully, Protecting Clips And Fasteners To Avoid Breakage.
- Peel Back Any Moisture Barrier Gently To Access The Actuator; Replace The Seal If Damaged.
- Disconnect The Electrical Connector And Release The Locking Rods (Note Clip Positions For Correct Reinstallation).
- Unscrew The Actuator Mounting Fasteners, Replace With The New Unit, And Reattach Rods And Connector.
- Before Reassembling The Door Trim, Test Locking/Unlocking From Remote, From Inside Switch, And Manually To Confirm Correct Operation.
- Use Suitable Lubricant On Linkages If Stiff; Ensure All Connections Are Secure And Free Of Corrosion.
Troubleshooting Tips
- If Operation Is Intermittent, Inspect The Electrical Connector For Corrosion And Check Wiring Continuity.
- Verify Fuses And Central Locking Supply Voltage Before Replacing The Actuator.
- Listen For Motor Noise: A running motor With No Movement Usually Indicates Stripped Gears Or A Disconnected Rod.
Why Choose This Part
Mechanics And Savvy DIYers Will Appreciate The Fast Identification By OEM Numbers (9681337180, 9137Q3, 9686733680, 9137K6) And The Straightforward Fitment On Citroën C4 5-door Models. Replacing A Faulty Actuator Restores Central Locking Reliability, Prevents Lock-Related Door Issues, And Eliminates Intermittent Failures That Can Cause Inconvenience Or Security Concerns.
Final Notes
Order by the listed product codes to ensure you receive the correct left rear door actuator. After installation, confirm smooth mechanical operation and full electrical response from the vehicle’s central locking system before reassembling the door panel.
