Description
Left rear side airbag for PEUGEOT 407 vehicles. Side behind the driver.
This Left Rear Side Airbag is a direct-fit safety module designed for Peugeot 407 models. It is intended to deploy in side-impact events to protect rear-seat occupants on the left side of the vehicle. Commonly searched under OEM numbers 9647923780 and 8216CQ, this replacement part is suitable for professional workshops and competent DIY mechanics performing scheduled repairs after a crash or diagnosing SRS faults. The description emphasizes compatibility keywords such as Peugeot 407 airbag, left rear side airbag, side curtain airbag and the OEM codes to increase findability in searches.
Technical Information
- Manufacturer: Peugeot / Stellantis
- Model: Peugeot 407 (Saloon, SW, Coupé) – Left Rear Side
- Product Codes: 9647923780, 8216CQ
- Other Numbers: NFP
Function And Application
The module is a side airbag designed to inflate instantly during a lateral impact, helping to reduce the risk of injury to occupants seated on the left rear side. It works together with the vehicle SRS control unit, side impact sensors and seat belt pretensioners to form the passive safety system for the rear compartment.
How The Part Is Replaced
Replacement typically involves removing interior trim and the seat or seatback access panels to reach the airbag mounting points. The unit is disconnected from the wiring harness via a locking connector, unbolted from its bracket and swapped for the new module. After fitment the connector must be fully engaged and trim reinstalled. Finally, the SRS system should be scanned to verify fault codes and confirm proper communication with the new module.
Installation Recommendations
- Always Disconnect The Battery And Follow Manufacturer Procedures Before Working On The SRS System.
- Use Appropriate Trim Tools To Avoid Damage To Interior Panels And Clips.
- Ensure Connectors Are Clean, Dry And Fully Locked. Replace Damaged Clips Or Wiring.
- After Installation, Clear And Verify SRS Fault Codes With A Diagnostic Tool. Confirm That The SRS Warning Light On The Instrument Cluster Extinguishes After Start Up.
- When In Doubt Or When Airbag Deployment Has Occurred, Have The Job Performed By A Qualified Technician.
Why The Part Most Commonly Fails
- Deployment During A Collision: Airbags Are Single-Use Components And Must Be Replaced After Deployment.
- Electrical Damage Or Corrosion: Water Ingress Or Corroded Connectors Can Cause Faults In The Airbag Circuit.
- Damage From Previous Repairs: Improper Removal Or Reinstallation Can Damage Wiring Or Connectors.
- Faults Reported By SRS Control Unit: Sensor Failures Or Wiring Shorts May Render The Module Inoperative.
For professional results and to maintain occupant safety, follow the vehicle manufacturer service instructions and use appropriate diagnostic equipment to verify system integrity after replacement.
