Product Overview

This left rear side airbag is designed for the Peugeot 407 SRS system and provides occupant protection in a side impact. The module inflates rapidly on detection of a qualifying lateral collision to reduce the risk of chest and pelvic injuries for rear-seat passengers. It is intended as a direct-fit part for vehicles equipped with factory side curtain/seat-mounted airbags on the left rear position.

Compatibility

Fits Peugeot 407 models (various body types: Saloon, SW, Coupé) produced in the common model years 2004–2011. Always verify the part numbers listed below against the vehicle’s original part marking if available.

Technical Information

• Manufacturer: Stellantis / Peugeot
• Model: Peugeot 407
• Product Codes: 9647923780; 8216CQ
• Other Numbers: NFP

Installation Recommendations

• Disconnect the negative battery terminal and wait at least 10–15 minutes before starting work to allow the SRS capacitors to discharge.
• Remove the appropriate interior trim panels carefully to access the airbag mounting points. Use plastic trim tools to avoid damage.
• Unbolt the airbag module and disconnect the SRS connector(s). Note alignment and connector orientation for correct reassembly.
• Handle the airbag module with the trim side facing away from you and store it face up on a stable surface until installation.
• Install using original mounting points and the manufacturer’s torque values where specified. Ensure all connectors are fully engaged and locked.
• After installation, reconnect the battery and clear SRS fault codes with a compatible diagnostic tool (for PSA vehicles, tools such as DiagBox/Lexia are commonly used) and confirm the airbag system returns to normal status.
• If in doubt, have the installation performed or checked by a qualified technician experienced with Peugeot safety systems.

Common Failure Causes

• Deployment During Collision: The most common reason an airbag needs replacement is deployment following an accident.
• Water Ingress And Corrosion: Leaks and moisture can corrode connectors and wiring, causing faults in the SRS circuit.
• Connector Or Wiring Damage: Damage during previous repairs or interior work can interrupt the system signal.
• Improper Removal/Installation: Incorrect handling or using excessive force can damage the module or its connectors.
• Age-Related Issues: While airbags are designed for the vehicle lifetime, exposure to harsh environments or physical damage can degrade components.

Notes For Mechanics And DIYers

This part is aimed at professional workshops and experienced DIY enthusiasts. Correct handling of SRS components is critical for safety. Always follow Peugeot manufacturer procedures and safety precautions when working on any airbag system.