Description
Complete electric lock for the rear tailgate glass for Citroën C5 I and II Combi
This complete electric tailgate glass lock is a direct replacement designed for Citroën C5 I and II Combi models. Frequently searched by product codes 661527, 8724A0 and 871971, the unit restores secure locking and reliable operation of the rear hatch glass and integrates with the vehicle’s central locking system. Suited for professional workshops and DIY mechanics who require an OEM-style solution for tailgate latch failures.
Function: The assembly combines an electric actuator and latch mechanism to lock and unlock the rear tailgate glass. It operates with the vehicle central locking and remote control, ensuring the hatch glass remains secure while driving and opens smoothly when requested.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C5 I Combi, Citroën C5 II Combi
- Product Codes: 661527, 8724A0, 871971
- Additional Numbers: NFP
Installation Recommendations
Basic Replacement Steps:
- Disconnect the negative battery terminal before starting work to prevent short circuits and unintended central locking activation.
- Open the tailgate and carefully remove the interior trim panel to access the lock assembly. Keep clips and screws in order for reassembly.
- Disconnect the electrical connector and any rods or linkages attached to the latch.
- Unbolt the lock assembly and remove the unit from the tailgate frame.
- Install the new lock in reverse order: secure fasteners, reconnect linkages and electrical connector, and re-fit the trim panel.
- Reconnect the battery and test lock operation using the key fob, central locking switch and manual release. Re-check striker alignment and adjust if necessary to ensure smooth engagement.
Practical Tips: Apply a small amount of dielectric grease to the electrical connector to reduce corrosion. Inspect tailgate seals and drainage channels for blockages that allow water ingress. Replace any brittle plastic clips or damaged seals to avoid rattle and water-related failures.
Common Failure Causes
- Water Ingress And Corrosion: Moisture penetration is a leading cause of electrical contact failure and corrosion of metal components inside the lock.
- Actuator Wear Or Plastic Gear Damage: Over time the electric motor or internal plastic gears can wear or break, causing intermittent operation or total failure.
- Mechanical Impact Or Misalignment: Heavy impacts to the tailgate or a misaligned striker place extra stress on the latch and accelerate wear or breakage.
- Wiring And Connector Issues: Chafed wiring, corroded pins or poor connector seating can interrupt power supply to the actuator.
Failure Pattern: Problems often start with intermittent locking or unusual noises from the tailgate, progressing to complete loss of function if left unchecked. Addressing moisture entry and worn parts early will extend service life and prevent secondary damage.
OEM Reference: Stellantis Citroën Peugeot 661527 8724A0 871971 NFP
