Description
Rear Safety Belt Left And Right For Citroën C4 II And DS4. Version FXX – Black With Alarm.
This is a used rear seat belt assembly designed for the left and right seating positions on Citroën C4 II (B7) and DS4 models. The FXX version comes in black and is equipped with an alarm/sensor for the seatbelt reminder system. The assembly is commonly referenced by product numbers 96871541XX, 8975ZR and 8976C2, which customers often use when searching for replacement parts.
Overview
Seat belts are a primary passive safety system: they restrain occupants during sudden deceleration or collision and interface with the vehicle’s seatbelt reminder/electrical system. This rear belt assembly is supplied complete for each side and usually incorporates the webbing, retractor mechanism and a buckle with alarm/contact switch (depending on specification). It is a direct-fit replacement for vehicles that originally used the FXX black configuration with alarm.
How It Is Replaced
Replacement should be carried out by a competent mechanic or an experienced DIYer who follows safety procedures. Typical removal/installation steps:
- Disconnect the vehicle battery before work to avoid accidental deployment of pyrotechnic devices or electrical faults.
- Remove rear seat cushion and interior trim panels to access mounting points and connectors.
- Disconnect any electrical connector for the buckle alarm/sensor if fitted.
- Unbolt the lower anchorage and retractor mounting bolts and remove the old belt assembly.
- Fit the replacement belt, secure all bolts to the manufacturer’s specified torque, reconnect electrical connectors and reassemble trim.
- Reconnect the battery and verify proper function: seatbelt warning light, buckle detection and smooth webbing operation.
Note: Some versions may include a pretensioner or integrated pyrotechnic device. If present, treat with care and follow manufacturer safety instructions. If you are unsure whether the unit contains a pretensioner, consult professional service documentation before attempting replacement.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 II (B7), DS4
- Product Codes: 96871541XX, 8975ZR, 8976C2
- Additional Numbers: 8975ZR, 8976C2
Installation Recommendations
Always disconnect the battery before starting work. Use the correct tools and torque settings for anchorage bolts (refer to factory torque specs). Inspect seatbelt mounting points and surrounding structure for corrosion or damage and repair if necessary. Verify the electrical connector for the buckle alarm is clean and makes good contact. After installation, check webbing runs freely without twists and perform a functional test of the seatbelt warning system.
Why This Part Most Commonly Fails
Common causes for replacement include impact damage from an accident (deployment or belt stretching), frayed or worn webbing from prolonged use, contaminated or jammed retractors due to dirt/debris, corrosion of anchorage hardware and failure of the buckle switch or alarm sensor. In many cases belts are replaced after a crash even if the damage is not obvious, because load-limiting properties can be compromised.
Compatibility And Notes
This assembly matches vehicles specified for the FXX black version with alarm. Customers commonly search by product numbers (96871541XX / 8975ZR / 8976C2) to find the correct item. Ensure the belt orientation (left/right) and the presence of an alarm sensor match your vehicle’s configuration before installation.





