Description
Electric central locking lock for the left rear door for Citroën C4 5‑door vehicles. Rear door on the driver’s side.
High-quality replacement electric lock for the central locking system, designed for the left rear door of Citroën C4 5‑door models. This unit restores reliable locking and unlocking via remote central locking and mechanical key operation. Frequently searched by part numbers, the lock is suitable for professional workshops and experienced DIY mechanics who service body and electrical components.
Technical Information
- Manufacturer: Stellantis
- Model: Citroën C4 (5‑door) — Left Rear Door
- Product Codes: 9647175180, 9137E0
- Additional Numbers: 9137K5, 9137Q2
Compatibility And Application
Specifically intended for the left rear (driver’s side rear) door of Citroën C4 5‑door vehicles. The part is commonly referenced by the listed OEM numbers, so searches by those codes will locate the correct unit quickly.
Function And Symptoms Of Failure
The door lock unit operates the mechanical latch and the central locking actuator inside the rear door. Typical symptoms indicating a faulty lock include intermittent locking/unlocking from the remote, inability to lock or unlock the affected rear door, noisy or grinding operation inside the door, and mechanical failure of the latch that prevents the door from staying closed.
Why The Part Fails Most Often
- Mechanical Wear: Plastic gears and internal levers can wear or break after years of use.
- Water Ingress and Corrosion: Moisture can reach the mechanism inside the door and corrode contacts or seize moving parts.
- Linkage/Actuator Damage: Metal rods or clips that connect the lock to the interior handle can detach or bend.
- Electrical Faults: Connector corrosion or broken wiring can interrupt power to the actuator.
Installation Recommendations
Suitable for professional fitting or by experienced DIY mechanics. Basic replacement steps:
- Open the rear left door and remove the inner door trim/panel using appropriate trim tools to avoid damage.
- Disconnect the electrical connector to the lock actuator. Note the routing of any linkages and clips.
- Remove retaining screws or bolts securing the lock assembly and carefully extract the unit from the door shell.
- Transfer any retaining clips or linkages to the new unit if necessary and fit the replacement lock in position.
- Reconnect the electrical connector and test central locking operation before reassembling the door panel.
- Reinstall the door trim and verify full mechanical and electrical function, including remote locking/unlocking and key operation.
Tip: Lubricate mechanical moving points with an appropriate door-lock lubricant and inspect linkages and seals to reduce risk of early failure.
Recommended Tools And Checks
- Plastic trim removal tools to avoid damaging door card.
- Torx/Screwdriver set for fasteners.
- Multimeter to check continuity and supply to the actuator connector.
- Light and inspection mirror to assess internal door condition and water seals.
Purchase Advice
When ordering, verify the part number printed on the original unit. The listed OEM numbers (9647175180, 9137E0, 9137K5, 9137Q2) are the quickest way to ensure fitment. Ideal for garages and competent DIYers who perform body‑side electrical repairs.
Why Choose This Unit
Reliable replacement for restoring correct operation of the left rear central locking on Citroën C4 5‑door vehicles. Clear product codes and a straightforward installation path make this part a practical choice for rapid door repair and return to service.
