Description
Original pyrotechnic passenger front seat belt pretensioner compatible with selected Citroën and Peugeot models. Supplied under OEM code 8972S2 (also listed as 8972.S2 / 8972-S2). This used original pretensioner is intended for service repairs where the SRS system requires replacement of a triggered or faulty pretensioner unit.
Function: The pyrotechnic pretensioner contains a small pyrotechnic charge that, when commanded by the airbag control unit during a collision, fires and rapidly retracts the belt webbing to remove slack. This action reduces occupant movement and improves the effectiveness of the restraint system in the initial milliseconds of an impact.
When To Replace: Replacement is normally required after airbag deployment, if the airbag/SRS warning lamp is illuminated with stored pretensioner faults, or when the retractor or connector shows visible damage. Common failure causes on older PSA vehicles include corrosion, damaged or loose connectors beneath the seat, or internal activation of the pyrotechnic charge.
Fitment And Checks: Confirm compatibility by matching the OEM code 8972S2 and by comparing the mounting points, connector shape and lock/pretensioner location with the original unit. This pretensioner is intended for the right front position (passenger side on left-hand drive vehicles) and is controlled by the vehicle’s airbag control module.
Installation Notes (General Guidance):
- Always disconnect the negative battery terminal and wait several minutes to allow SRS capacitors to discharge before working on the restraint system. Work in an electrostatic-safe environment.
- Move the seat to its rearmost or forward-most position as required to access fasteners, remove seat mounting bolts and carefully disconnect electrical connectors under the seat (airbag/pretensioner).
- Replace the pretensioner assembly as a complete unit following the vehicle manufacturer’s service manual; check wiring and connector condition and secure all fastenings to the specified torque.
- After installation, reconnect the battery and use a diagnostic tool to clear airbag fault codes and verify the SRS system status.
Technical Information
- Manufacturer: PSA (Citroën / Peugeot)
- Model: Citroën Berlingo, Citroën Xsara, Citroën XM, Citroën Xantia; Peugeot Partner, Peugeot 306, Peugeot 406 (verify by OEM code and VIN)
- Product Codes: 8972S2; 8972.S2
- Other Numbers: 8972-S2; 8972 S2
Typical symptoms that indicate pretensioner issues: persistent airbag warning lamp, stored pretensioner fault codes in the airbag control unit, locked or rough seat belt retractor operation, or visible damage to the belt/connector. Always verify exact fitment and safety compatibility before installation.
