Description
Electric lock for the rear hatch glass for CITROËN C5 I and II Combi.
This electric lock is designed to replace the locking mechanism of the rear hatch glass on Citroën C5 I and C5 II Combi models. Ideal for professional workshops and experienced DIY enthusiasts, the unit restores reliable locking and central locking integration for the tailgate glass, improving security and weather sealing. Commonly searched by product code 661527, this part suits fitment and repair jobs where the original actuator or latch has failed.
The lock provides an electro-mechanical actuation of the rear hatch glass latch, allowing central locking commands to secure or release the glass independently of the main tailgate lock. Correct fitment ensures smooth operation of the hatch glass, prevents rattles and moisture ingress, and maintains proper alignment with striker components.
Technical Information
- Manufacturer: Stellantis
- Model: Citroën C5 I And C5 II Combi
- Product Codes: 661527
- Other Numbers: NFP
Installation Recommendations
- Disconnect the vehicle battery before starting to avoid short circuits and accidental airbag or central locking activation.
- Remove interior tailgate trim carefully to access the rear glass lock—use plastic trim tools to avoid damaging clips and panels.
- Note the routing and connection of wiring harnesses; disconnect electrical connectors and remove any retaining bolts holding the actuator.
- Compare the replacement unit with the original to confirm matching mounting points and connector type before installation.
- Fit the new lock, secure fasteners to original positions, reconnect the wiring, and test operation (manual and remote central locking) before reassembling trim.
- After installation, cycle the lock several times and check alignment with the striker and weather seals to ensure quiet, watertight closure.
Most Common Failure Reasons
- Water Ingress And Corrosion: Moisture can penetrate the lock casing or connectors, causing corrosion of contacts or seizing of mechanical parts.
- Actuator Motor Wear: Repeated use and age can lead to motor or gear wear inside the actuator, preventing reliable movement.
- Mechanical Fatigue: Latch components and plastic gears may crack or wear, causing intermittent or permanent failure to lock.
- Wiring And Connector Issues: Damaged wiring, poor grounds, or corroded connectors can interrupt power to the lock.
- Impact Or Misalignment: Rear-end damage or misaligned strikers may overload the lock mechanism and accelerate failure.
By replacing a faulty rear hatch glass lock with a correctly matched unit (e.g., product code 661527), you restore secure closing, prevent water leaks and noise, and maintain the proper operation of the vehicle’s central locking system. Suitable for workshop repairs and competent DIY fitting—ensure careful handling of trim and connectors to avoid additional damage during replacement.
