Description
Electric right rear door lock and actuator designed for the Citroën C4 Grand Picasso. This direct-fit replacement corresponds to OEM part number 9138J8 and restores reliable central locking and door latching on the right rear door. Suitable for use by professional workshops and experienced DIY mechanics, the unit electrically operates the latch and integrates with the vehicle’s locking system.
Key Benefits
- Direct replacement for the right rear door of the Citroën C4 Grand Picasso
- Restores central locking, remote locking and child-lock functions
- Robust electric actuator and latch assembly for consistent performance
- Fitted by mechanics quickly; accessible for competent DIY repairs
Typical Faults And Causes
Common symptoms include a door that will not lock or unlock, intermittent operation, or grinding/noise inside the door when operating locks. Typical causes are actuator motor wear, corroded or loose electrical connections, damaged linkage rods, or water ingress that affects the mechanism.
Replacement & Installation
Typical replacement procedure: disconnect the negative battery terminal; remove the interior door trim and protective moisture barrier; disconnect the electrical connector and linkage rods from the lock assembly; remove the mounting bolts and extract the old lock; fit the new lock, reconnect linkages and electrical connector, test locking and unlocking (including remote and child-lock functions) before reassembling the door trim. Always follow vehicle-specific repair manuals and safety precautions.
Service Life
Service life varies by usage and environmental exposure. Components exposed to moisture, road salt or heavy use can deteriorate faster. Replace the unit when persistent failures or performance loss occur.
Technical Information
- Manufacturer: PSA Citroën Peugeot
- Model: Citroën C4 Grand Picasso (Right Rear Door)
- Product Codes: 9138J8
- Other Numbers: Not Specified







