Description
Overview
This left roof (driver side) airbag is designed for Citroën C8 and Peugeot 807 models and carries the OEM identifiers 1400418980 and 8329SG. Mounted above the driver’s door, the roof airbag helps protect the head and upper torso in side impacts and rollover events as part of the vehicle’s Supplemental Restraint System (SRS).
Key Benefits
– Restores original passive safety performance after an incident affecting the SRS.
– Direct fit for specified PSA models; usually searched by part number for fast identification.
– Suitable for use by professional workshops and experienced DIYers who follow correct SRS procedures.
Function And Typical Fault Causes
The roof airbag inflates within milliseconds when the vehicle’s crash sensors detect a qualifying side impact or rollover. Airbags themselves do not wear out under normal conditions, but they may need replacement after deployment, if the unit or its wiring/connectors have been damaged, or if the vehicle interior has been exposed to water, corrosion or other contamination that can impair electrical connections or the inflator module.
Fitment And Installation Notes
This airbag is intended for installation above the driver’s door on Citroën C8 and Peugeot 807. Replacement should follow the vehicle manufacturer’s SRS procedures. Typical professional steps include:
- Disconnect the negative battery terminal and wait the recommended time (commonly at least 10–15 minutes) to allow SRS capacitors to discharge.
- Remove interior trim panels carefully to access the roof airbag module, avoiding damage to clips and upholstery.
- Disconnect the SRS electrical connector using proper tools; avoid pulling on wires and prevent static discharge.
- Replace the airbag module with the correct orientation and secure fasteners to manufacturer torque where specified.
- Reconnect the battery, perform a diagnostic scan to clear/verify SRS fault codes and confirm system readiness.
Due to the safety-critical nature of airbags, installation is recommended to be performed by qualified technicians or experienced DIYers who have access to diagnostic tools and follow safety protocols.
When To Replace
Replace the roof airbag if it has been deployed in a collision, if the SRS warning light indicates a fault related to the roof module, or if the unit or its connectors show visible damage or contamination. Regular diagnostic checks after accidents or water ingress are important to ensure continued protection.
Technical Information
Manufacturer: PSA Citroën Peugeot
Model: Citroën C8, Peugeot 807
Product Codes: 1400418980
Other Numbers: 8329SG
Important Safety Advice
Airbags are life-saving devices and must be handled with care. Do not attempt to repair or modify the airbag module or inflator. Always follow manufacturer SRS service instructions and use appropriate personal protective measures when servicing the SRS system.
