Description
Electric central locking door lock for the right front (passenger) door of Citroën C4 Coupé, first generation.
This replacement electric door lock is designed for the right front (passenger) door of the Citroën C4 Coupé (first series). It restores reliable central locking operation, mechanical latch engagement and remote locking/unlocking when the original actuator or latch assembly has worn out or become damaged. Ideal for professional workshops and competent DIY mechanics who search by part number (9660700680, 9136EV).
Key Features
High-compatibility replacement for the original right front door central locking unit. Compatible with central locking system, including mechanical latch, actuator motor and electrical connector matching original PSA wiring. Commonly referenced by OE codes 9660700680 and 9136EV.
Benefits
- Direct fit for Citroën C4 Coupé first generation—plug-and-play electrical connector and mounting points.
- Restores secure door latching and reliable central locking function.
- Part-number searchable: improves findability for garages and independent mechanics (9660700680, 9136EV, 9681332080).
Installation Procedure
Recommended for experienced technicians or competent DIY mechanics. Typical replacement steps:
- Disconnect the vehicle battery before starting work to avoid short circuits and accidental airbag deployment.
- Remove the interior door trim panel and water shield carefully to access the lock assembly and linkages.
- Disconnect the electrical connector and unclip/unscrew the latch unit from the door shell.
- Release and mark mechanical linkages (rods/cables) to ensure correct reassembly, then transfer them to the new lock if required.
- Fit the replacement lock, reconnect electrical connector and linkages, then test locking/unlocking operation before reassembling the trim.
- Reinstall the trim and reconnect the battery. Verify central locking, remote operation and mechanical latch engagement.
Most Common Failure Reasons
- Wear Of Internal Plastic Gears Or Actuator Motor: Repeated use and age lead to stripped gears or motor failure.
- Water Ingress And Corrosion: Moisture entering the mechanism causes corrosion and electrical faults.
- Mechanical Damage: Impact or door misalignment can damage the latch or linkage.
- Electrical Connector Or Wiring Faults: Oxidation or fatigue in the connector or wiring can prevent reliable operation.
- Sticking Due To Dirt And Lack Of Lubrication: Debris and dried grease impede smooth movement of the latch.
Service Life And Maintenance
Service life depends on use, environment and maintenance. Locks in high-use doors or in vehicles exposed to moisture and salt can fail earlier. Regular lubrication of moving parts and keeping the door seals intact helps prolong service life. If symptoms such as intermittent locking, noise from the door when locking, or inability to latch occur, inspect the lock assembly early to avoid being unable to secure the door.
Technical Information
- Manufacturer: Stellantis (Citroën)
- Model: Citroën C4 Coupé I (First Generation, 2004–2010) — Right Front (Passenger) Door
- Product Codes: 9660700680, 9136EV
- Other Numbers: 9681332080
Installation Recommendations
- Always disconnect the battery before removing or installing the door lock.
- Keep fasteners and clips organized and replace any damaged trim clips to avoid rattles after reassembly.
- Transfer or correctly position all rods and linkages; incorrect routing causes malfunction.
- After installation, test the mechanism in all modes (remote, central locking, manual lock, and door open/closed) before completing reassembly.
- Use dielectric grease on electrical connectors to protect against moisture and corrosion.
