Description
Right Roof Side Airbag Peugeot 407 Sedan And Estate Passenger Side
This roof-mounted side airbag is intended for Peugeot 407 models (sedan and estate) and protects the passenger side in side impacts and rollovers. It is a direct-fit safety component commonly looked up by part numbers 9660989280 and 8331AC. Designed for professional workshops and competent DIY mechanics, the unit restores the vehicle’s SRS protection after deployment or when a faulty module needs replacement.
Function And Benefits
The roof side airbag (curtain/side head airbag) deploys from the headliner area to protect the occupant’s head and upper torso during side collisions and roof events. Correct installation ensures proper inflation timing and curtain coverage across the door opening and pillars, reducing the risk of head injuries. Replacing a damaged or deployed unit reinstates occupant protection and prevents persistent SRS fault codes or airbag warning lights.
Installation Recommendations
- Disconnect The Battery: Remove negative battery terminal and wait at least 10 minutes to allow SRS capacitors to discharge before working on the system.
- Access The Unit: Remove headliner trims, grab handles, and A/B-pillar covers as required to reach the airbag module and its mounting points.
- Remove The Old Module: Unbolt the fasteners securing the module, carefully unplug the electrical connector(s) and remove the unit from the roof channel.
- Handle With Care: Always point the airbag module away from yourself and avoid impact, heat, or static discharge. Store the module on a stable, non-conductive surface with the deployment side up.
- Fit The New Module: Position the replacement unit, reconnect the electrical connector(s) securely, and tighten fasteners to the manufacturer’s torque specifications.
- Post-Installation Checks: Reconnect the battery, then use an SRS diagnostic tool to clear crash data, reset fault codes, and verify that the airbag warning light extinguishes and no faults remain.
- Professional Tools Recommended: Use appropriate trim tools, torque wrench and diagnostic equipment for safe, reliable installation.
Most Common Reasons For Failure
Side/roof airbags typically require replacement for the following reasons:
- Deployment After A Collision: Once deployed in a crash the module must be replaced.
- Electrical Faults: Corroded connectors, damaged wiring looms or poor contacts can trigger SRS faults and disable the module.
- Water Ingress: Leaks around sunroof seals, door seals or through the headliner may cause corrosion and short circuits in airbag connectors.
- Previous Improper Repairs: Incorrectly reinstalled clips, crushed connector pins or damaged mounting points from earlier repairs can lead to malfunction.
- Age-Related Deterioration: While airbags do not have a fixed service interval, aging wiring, connectors and environmental exposure can contribute to failures over time.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 407 (Sedan, Estate) — Passenger Side
- Product Codes: 9660989280, 8331AC
- Additional Numbers: No Additional Numbers Provided
Suitable For: Mechanics And Experienced DIY Enthusiasts Repairing Peugeot 407 Interiors. Frequently Searched By Part Number For Fast Identification.
