Description
Right pyrotechnic seat belt pretensioner for CITROËN C2, C3 and Pluriel passenger seat.
Product Overview
This right‑side pyrotechnic seat belt pretensioner is a direct‑fit unit for Citroën C2, Citroën C3, Citroën C3 Pluriel and compatible Peugeot 1007 models. Commonly searched under OEM numbers 9640676777, 8973TG and 8973TJ, the pretensioner is a safety device designed to tighten the shoulder belt instantly in a frontal collision, reducing occupant forward movement and improving airbag effectiveness. Ideal for professional workshops and experienced DIY mechanics who repair or restore vehicle passive safety systems.
How It Works
The pretensioner contains a pyrotechnic actuator that, when triggered by the airbag control unit during a significant impact, retracts the belt webbing to remove slack within milliseconds. After deployment the unit is irreversibly activated and must be replaced. While inactive, the pretensioner remains an inert component in the retractor assembly connected to the vehicle wiring harness and the Supplemental Restraint System (SRS).
Technical Information
- Manufacturer: Stellantis
- Model: Citroën C2, Citroën C3, Citroën C3 Pluriel, Peugeot 1007
- Product Codes: 9640676777, 8973TG, 8973TJ
- Additional Numbers: Right Passenger Seat / Front Seat Position
Common Faults And Lifespan
Pretensioners rarely fail during normal use but become unusable after deployment in a crash. Other common causes of malfunction include connector corrosion, damage to the wiring harness, water ingress, prior incorrect removal, or fault conditions reported by the airbag control unit (SRS fault). There is no fixed service interval—replacement is mandatory after deployment or when the SRS system reports a related fault.
Replacement Procedure (Summary)
- Disconnect The Battery: Always disconnect the negative battery terminal and wait the manufacturer‑specified time to discharge residual power in the SRS circuit.
- Remove Trim And Seat Components: Remove seat covers and trim panels as required to access the pretensioner mounting bolts and electrical connector.
- Unbolt And Disconnect: Unscrew the pretensioner securing bolts and carefully disconnect the electrical connector. Handle the unit as a pyrotechnic device—do not apply heat or strike the module.
- Install New Unit: Fit the replacement pretensioner, tighten fasteners to the manufacturer’s torque specifications and reconnect the electrical connector.
- Reconnection And Checks: Reconnect the battery, clear SRS fault codes with a diagnostic tool and confirm the airbag system returns to normal status. Verify seat belt operation and correct routing of webbing.
Installation Recommendations
- Safety First: Treat the pretensioner as a pyrotechnic component. Avoid impact, heat and static discharge. Wear appropriate PPE and follow safe handling procedures.
- Use Proper Tools: Use the correct torques, insulated tools for electrical connectors and an OBD‑II/PSA diagnostic interface to clear faults.
- Professional Support: If you are not experienced with SRS systems, have the replacement performed or at least checked by a qualified technician to ensure system integrity.
- Documentation: Follow the vehicle manufacturer’s removal and installation instructions and torque values to avoid damage to mounting points and the seat structure.
Why This Part Is Needed
The pretensioner is a critical component of the vehicle’s passive safety system. After a collision deployment the device is single‑use and no longer provides protection. Even non‑deployed units that have experienced water damage, connector corrosion, or wiring faults can compromise SRS function and must be replaced to restore full occupant protection.
Compatibility And Search Tips
Searchable Keywords: Right Seat Belt Pretensioner, Pyrotechnic Pretensioner, Citroën C2 Pretensioner, Citroën C3 Pretensioner, C3 Pluriel Pretensioner, Peugeot 1007 Pretensioner, 9640676777, 8973TG, 8973TJ. Buyers often search by these OEM numbers when looking for a direct‑fit replacement.
