Description
Electric lock for the right rear door for Citroën C4 Picasso and Grand Picasso. Rear passenger-side door.
This Electric Right Rear Door Lock is a direct-fit replacement designed for Citroën C4 Picasso and Grand Picasso models. Ideal for professional workshops and experienced DIY mechanics, the unit restores reliable door locking and central locking function on the rear passenger side. Frequently searched by OE numbers (9138J9, 24099158, 24098158, 24103158), this part improves vehicle security, prevents water ingress caused by a faulty latch, and returns proper operation of the lock actuator and linkage.
Features And Benefits
- Direct Replacement: Matches original mounting points and connector layout for straightforward swap.
- Restores Central Locking: Re-establishes electric actuation and remote locking/unlocking on the right rear door.
- Durable Construction: Designed to withstand typical wear from repeated use, door closing impacts and environmental exposure.
- OEM Cross Numbers Included: Improves searchability by part number for quick identification in catalogs and online.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 Picasso, Citroën C4 Grand Picasso (Right Rear / Passenger-Side Rear Door)
- Product Codes: 9138J9
- Additional Numbers: 24099158, 24098158, 24103158
Installation Recommendations
Replacement is straightforward for technicians familiar with door trim removal. Recommended steps:
- Disconnect The Battery Before Starting To Avoid Short Circuits And Unintended Airbag Deployment.
- Remove The Interior Door Trim Carefully To Access The Lock Mechanism. Preserve Fasteners And Clips For Reuse.
- Peel Back The Moisture Barrier To Expose The Lock And Actuator Assembly.
- Disconnect The Electrical Connector And Unhook Any Locking Rods/Linkages From The Mechanism. Note Their Orientation For Reassembly.
- Unscrew The Lock Module From The Door, Replace With The New Unit, And Reattach Linkages In The Same Positions.
- Reconnect The Electrical Connector, Reinstall The Moisture Barrier And Trim, Then Reconnect The Battery.
- Test All Functions: Manual Lock/Unlock, Remote Locking, Child Lock (If Applicable) And Door Latch Engagement.
Tip: Check Connector Pins For Corrosion And Clean Or Replace As Needed. Apply A Light, Appropriate Lubricant To The Latch And Moving Linkages To Extend Service Life.
Why This Part Fails Most Often
- Actuator Wear Or Motor Failure: Repeated cycles and age can cause the small electric motor or internal gears to wear out or seize.
- Corrosion And Moisture Ingress: Water penetration past the door seals or damaged moisture barrier accelerates corrosion of internal components and connectors.
- Mechanical Damage Or Impact: Door damage from impacts or slamming can deform the latch, bend linkages, or break mounting points.
- Connector Problems And Wiring Faults: Broken wires, loose pins, or poor grounding can prevent the lock from receiving power or signals.
- Foreign Debris Or Wear In The Latch: Accumulated dirt or worn catches can stop the latch from fully engaging or releasing.
Practical Notes For Mechanics
When replacing the lock in a workshop environment, verify the operation of the entire locking circuit after installation (left/right doors and central locking) to ensure no other faults are present. If the vehicle shows intermittent locking issues, inspect wiring harnesses within the door and at the door jamb for signs of flex fatigue. Replacing the moisture barrier and sealing all door penetrations will help prevent premature failure of the new unit.
Compatibility And Search Tips
Commonly Looked Up By Part Numbers: 9138J9, 24099158, 24098158, 24103158. Use these OE numbers when searching parts catalogs or databases to quickly locate the correct item for Citroën C4 Picasso and Grand Picasso right rear passenger doors.
