Description
Electric lock for the rear tailgate glass for Citroën C5 I and II Combi
This Electric Lock Assembly Is Designed To Secure The Opening Rear-Window Section Of The Tailgate On Citroën C5 Estate (Combi) Models. It Replaces The Internal Latch/Actuator Responsible For Locking And Releasing The Rear Glass Independently From The Main Tailgate, Allowing Central Locking And Remote Unlocking To Operate The Glass Hatch Safely. Ideal For Professional Garages And Do-It-Yourself Mechanics Searching By Part Number Or Vehicle Model.
The Unit Is Frequently Searched Under The Part Number 661527 (NFP) And Is Commonly Used On Citroën C5 First And Second Generation Estate/Combi Variants. Installing A Direct Replacement Restores Proper Locking Function, Prevents Water Ingress Through A Faulty Latch, And Ensures The Rear Glass Opens And Closes Reliably.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C5 I Combi; Citroën C5 II Combi
- Product Codes: 661527; NFP
- Other Numbers: Not Available
Function And Benefits
- Controls Locking/Unlocking Of The Rear Hatch Glass As Part Of The Central Locking System.
- Includes An Electric Actuator/Latch Mechanism That Receives Lock/Unlock Signals From The Vehicle.
- Restores Secure Closure, Prevents Rattles And Water Leaks, And Ensures Safe Operation When Loading/Unloading Through The Glass Flap.
- Direct Fit Replacement To Reduce Downtime In Professional Workshops.
How Replacement Is Performed
- Disconnect The Negative Battery Terminal Before Starting To Avoid Short Circuits.
- Remove Interior Tailgate Trim Panels To Access The Lock Assembly; Protect Trim Clips And Fasteners To Avoid Damage.
- Unplug The Electrical Connector And Release Any Linkages Or Rods Connected To The Latch.
- Remove Fasteners Securing The Lock Unit, Replace With The New Unit, Reconnect Wiring And Linkages, Then Refit Trim.
- After Installation, Reconnect The Battery And Cycle The Central Locking Several Times To Confirm Smooth Operation And Correct Alignment.
Installation Recommendations
- Work On A Cold, Dry Vehicle In A Clean Environment To Prevent Contamination Of The Mechanism.
- Use Appropriate Trim Tools To Avoid Breaking Plastic Clips When Removing The Tailgate Lining.
- Inspect Wiring And Connectors For Corrosion Or Damage; Clean Contacts With Electrical Contact Cleaner If Necessary.
- Apply A Light, Suitable Grease To Moving Parts Of The Latch To Improve Longevity After Installation.
- Test The New Lock Through Multiple Lock/Unlock Cycles And Verify That The Rear Glass Seals Properly.
Most Common Failure Reasons
- Corrosion From Moisture Ingress Causing Electrical Or Mechanical Failure Of The Actuator.
- Wear Or Breakage Of Internal Plastic Gears Or Mechanisms After Years Of Use.
- Damaged Or Oxidized Electrical Connectors Leading To Intermittent Operation.
- Misalignment Or Deformation Of The Tailgate Or Glass Causing Excessive Load On The Lock.
- Impact Damage From Rear Collisions Or Heavy Loads That Affect The Latch Assembly.
Suitable For Fleet And Independent Garages As Well As Enthusiasts Performing Self-Repairs. Searching By Part Number 661527 Will Help Locate The Correct Unit Quickly, While Following The Installation Recommendations Ensures Reliable Long-Term Operation.







