Description
Electric central locking latch for right rear door Citroën C5 I and II
Citroën C5 03/2001-09/2004 and Citroën C5 10/2004-01/2008
Used part with functional warranty
This electric lock (central locking latch) for the right rear door is a direct replacement part for Citroën C5 I and II models. Ideal for professional workshops and experienced DIY mechanics, the unit restores reliable central locking and door securing when the original latch or actuator has failed. Common search terms include Citroën C5 right rear door lock, central locking actuator, and part number 9138A2 — useful for finding the exact match in parts catalogs or search engines.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C5 I (03/2001–09/2004), Citroën C5 II (10/2004–01/2008)
- Product Codes: 9138A2
- Other Numbers: NFP
Function And Application
The unit integrates the mechanical latch and the electric actuator responsible for locking and unlocking the right rear door via the vehicle’s central locking system. It secures the door striker, engages/disengages the lock mechanism, and transmits the central locking motor movement to the internal linkage. This part is vehicle-facing (mounted inside the door shell) and communicates with the central locking wiring harness.
Installation Recommendations
Follow these practical steps to replace the right rear door lock safely and reliably. Suitable for experienced mechanics and competent DIYers.
- Always disconnect the battery before starting work to prevent short circuits and accidental airbag deployment.
- Remove the door trim/panel carefully, keeping fasteners and plastic clips organized to avoid breakage.
- Disconnect the electrical connector to the actuator and unclip the locking rods (note their positions for reassembly).
- Unscrew the latch assembly from the door shell and remove it through the service opening.
- Compare the replacement unit with the removed part (linkage points, connector type, mounting holes) to confirm fitment.
- Fit the new latch, reattach rods and connectors, and test function before reassembling the door trim.
- Lubricate moving parts with suitable grease and check door alignment and striker adjustment if locking is not smooth.
Why This Part Most Commonly Fails
Understanding failure modes helps prevent repeat repairs:
- Plastic Gear Or Actuator Wear: Internal motor or plastic gears can wear or shear over time, causing the lock to stop moving.
- Corrosion And Moisture Ingress: Water or humidity entering the door can corrode contacts or seize mechanical parts, especially in older seals.
- Mechanical Damage: Impact from slamming doors, faulty striker adjustment, or broken linkage clips can overload the latch.
- Electrical Problems: Connector corrosion, damaged wiring, or intermittent power supply from the central locking system can mimic latch failure.
Practical Tips
- When replacing the latch, inspect the door wiring loom and connector for corrosion — repairing the electrical connection can prevent premature failure of the new part.
- Check and, if necessary, adjust the door striker to avoid excessive load on the latch.
- Test the central locking operation (lock/unlock cycles) after installation to confirm smooth movement and correct synchronization with the rest of the vehicle.
Compatibility And Notes
Fits Citroën C5 I and II model ranges as listed above. Please verify the part number (9138A2) against your vehicle’s existing latch for correct compatibility. This unit is supplied used, but with a functional warranty covering operation as stated.
