Description
Electric central locking lock for the right rear door of CITROËN C5 I and II. Citroën C5 3/2001–9/2004 and Citroën C5 10/2004–1/2008. Used part with functional warranty.
This right rear door electric lock (often searched under part number 9138A2) is a direct replacement for the central locking mechanism on Citroën C5 I and II models. Designed for mechanics and DIY enthusiasts, the unit controls both the mechanical latch and the electrical locking signal for the door. It restores reliable locking/unlocking action, eliminates intermittent failure of the rear door lock, and is a common repair when the central locking no longer responds for a single door.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C5 I (03/2001–09/2004), Citroën C5 II (10/2004–01/2008)
- Product Codes: 9138A2
- Other Numbers: NFP (as marked in catalog entry)
Function And Symptoms
The unit combines the mechanical latch with an electrical actuator and position switches used by the central locking system. Typical symptoms indicating a faulty lock include: the right rear door not locking or unlocking with the remote/central command, intermittent operation, loud grinding or buzzing from inside the door, or the door not latching properly. In some cases the door may appear locked but will not secure fully due to a worn latch mechanism.
Why This Part Fails
Failure Most Commonly Results From Moisture Ingress And Wear Of Internal Components. Over Time Plastic Gears And Small Electric Motors Or Microswitches Can Wear Or Break. Corrosion On Mechanical Linkages, Damaged Rod Clips, Or Bent Latch Components From Impacts Also Cause Malfunction. Electrical Connector Corrosion Or Broken Wires From Repeated Door Movement Are Frequent Causes As Well.
Replacement Guide
Replacement Is Straightforward For Experienced Technicians And Handy DIYers. Typical Steps:
- Remove The Door Trim Panel And Disconnect Any Retaining Clips Carefully.
- Peel Back The Moisture Barrier To Access The Lock Assembly.
- Disconnect The Electrical Connector And Any Lock Rods Or Linkages (Note Their Routing And Clip Positions).
- Unscrew The Lock Unit From The Door Shell And Remove The Old Unit.
- Install The New Unit, Reattach Rods And Connectors, And Test Locking/Unlocking Before Reassembling The Door.
Recommended Tools: Torx And Phillips Screwdrivers, Trim Removal Tools, Needle-Nose Pliers, Multimeter For Electrical Checks. If You Are Unsure, Follow A Repair Manual Specific To The Model Year Or Consult A Service Diagram For Rod Orientation.
Installation Recommendations
- Test The New Lock Functionality With The Door Panel Removed Before Final Reassembly.
- Lubricate Moving Latch Points With A Suitable Graphite Or Silicone-Based Lubricant, Avoid Heavy Grease That Attracts Dirt.
- Check And Replace Any Damaged Rod Clips Or Fasteners To Ensure Correct Operation.
- Inspect Wiring And Connector Pins For Corrosion; Clean Contacts If Necessary.
- Reattach The Moisture Barrier Securely To Prevent Water Ingress That Causes Future Failures.
Who Should Buy This Part
Ideal For Professional Auto Technicians And Competent DIYers Repairing Citroën C5 I And II Vehicles. Frequently Searched By Part Number 9138A2—include This Code When Searching Catalogs Or Ordering To Ensure Match.
Additional Notes
This Listing Refers To A Used Unit Supplied With A Functional Warranty. Compatibility Is Based On The Model Years Stated Above; Verify Fitment Against The Vehicle’s Door (Right Rear) And The Original Part Number Where Available.
