Description
Electric lock – central locking – right front door for CITROËN C5 I and II vehicles. Used part with guaranteed functionality.
This right front door electric lock (product code 9136J9) is a direct-fit replacement for Citroën C5 Mk I and Mk II models. Designed for mechanics and experienced DIY enthusiasts, it restores central locking, door latching and electrical unlocking functions. The unit is compatible with the original wiring harness and mounting points, making installation straightforward on compatible vehicles. Searching by the code 9136J9 will help you quickly find the correct part.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C5 I and II
- Product Codes: 9136J9
- Other Numbers: NFP
Function
The door lock assembly controls central locking and the mechanical latch for the right front door. It integrates an electric actuator (for remote locking/unlocking), latch mechanism, and electrical switch contacts used by the vehicle’s body control module to detect door open/closed status. Proper operation ensures secure door closure, correct central locking responses and reliable operation of interior handle and remote unlocking.
How Failures Occur And Typical Symptoms
Failures most commonly result from moisture ingress and corrosion of internal components, wear of plastic gears or latch parts, degraded actuator motor or faulty microswitches, and damaged wiring or connector contacts. Typical symptoms include the door not locking or unlocking with the remote, intermittent operation, difficulty latching or unlatching the door, or the vehicle reporting the door as open while it is closed. There is no fixed replacement interval; lifespan depends on environment, usage frequency and maintenance.
Installation Recommendations
- Disconnect the negative battery terminal before starting electrical work.
- Remove the interior door trim panel carefully using trim tools to avoid breaking clips.
- Disconnect the electrical connector from the lock assembly and unclip linkage rods from the handles.
- Unbolt the lock unit from the door shell and remove it. Transfer any needed linkage or striker components if required.
- Install the replacement lock, reconnect linkage and electrical connector, and bolt to the original torque settings.
- Reconnect the battery and test central locking, remote operation, door-open sensor and interior/exterior handles before refitting the door card.
- Lubricate latch points lightly with suitable grease and ensure correct alignment of the striker to prevent premature wear.
Practical Tips For Mechanics And DIYers
- Use Torx and metric sockets, trim removal tools and needle-nose pliers for safe, efficient replacement.
- Inspect the door wiring loom and connector pins for corrosion; clean contacts if needed to ensure reliable electrical connection.
- If the actuator shows intermittent movement, check for water ingress and replace the lock to prevent further damage to the door electronics.
- After installation, cycle the central locking several times and verify that the vehicle’s central locking control recognizes the door closed state.
This unit is intended for Citroën C5 I and II models and is commonly searched under code 9136J9. Suitable for professional workshops and competent DIY repairers who need a reliable, direct-fit door lock for the right front door.








