Description
Electric central locking lock for the right front door for Citroën C4 and DS4 vehicles. Front passenger door.
Replacement electric central locking latch (right front passenger door) designed for Citroën C4 II and DS4 models. This door lock unit is the mechanical and electrical interface for the central locking system on the passenger side—responsible for secure latching, unlocking on command and feedback to the vehicle’s locking system. Ideal for professional workshops and experienced DIYers searching by product codes 9685351480 or 9136GR.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 II, DS4
- Product Codes: 9685351480, 9136GR
- Other Numbers: N/A
Function And Symptoms
The unit combines an electric actuator with the door latch assembly: it physically secures the door closed and receives/executes central locking commands. Common symptoms of a failing unit include failure to lock or unlock the passenger door, intermittent operation, grinding or clicking noises from inside the door, or the door not latching securely.
Installation Recommendations
Before you start: Always disconnect the battery before removing interior trim or electrical connectors to avoid short circuits and potential damage. Work on a stable surface and keep fasteners organized.
- Remove door trim and any weather seals obstructing access to the lock.
- Carefully detach interior rods and linkages (note or photograph positions for reassembly) and remove retaining clips.
- Unplug the electrical connector from the lock actuator.
- Unscrew the lock unit fasteners and remove the old assembly from the door shell.
- Install the new lock, secure fasteners to the manufacturer’s recommended torque, reconnect rods and linkages in original positions and reattach electrical connector.
- Reconnect the battery and test locking/unlocking functions several times before reassembling the door trim. Verify that the door closes and latches smoothly.
Recommended For: Installation by a qualified technician or an experienced DIYer with basic tools. Use corrosion-resistant grease on linkages and lubricate latch surfaces after installation to ensure smooth operation.
Why The Part Fails Most Often
- Actuator Motor Wear: Repeated cycles eventually wear the small motor or brushes inside the actuator.
- Broken Plastic Gears Or Mechanical Wear: Internal plastic gear teeth can crack or strip, causing loss of motion.
- Water Ingress And Corrosion: Moisture entering the door can corrode contacts or seize mechanical components.
- Connector And Wiring Problems: Corroded or damaged connectors and wiring can cause intermittent faults or total loss of function.
- Linkage And Clip Failure: Bent rods or broken retaining clips prevent correct mechanical movement of the latch.
Notes For Professionals
Searches are commonly performed by product code—use 9685351480 or 9136GR when locating the correct replacement. After fitting, verify full function of central locking and door sensor signals through the vehicle’s diagnostic interface if available.
