Description
Left roof airbag for Citroën C8 and Peugeot 807
Driver side
This left roof (curtain) airbag is intended for Citroën C8 and Peugeot 807 models and is supplied with original OEM identification numbers to simplify searches: 1400418980, 8329SG. Designed for professional workshops and experienced DIY mechanics, the unit restores passive safety in the event of a side impact or rollover by providing head protection for front occupants. Ideal for replacement after deployment or where the airbag circuit has reported a fault, the part is commonly referenced by its product codes, making it easy to find when ordering or checking stock.
Technical Information
- Manufacturer: Stellantis / Citroën / Peugeot
- Model: Citroën C8, Peugeot 807
- Product Codes: 1400418980, 8329SG
- Additional Numbers: As listed by OEM and aftermarket catalogues
Function And Fitment
The roof (curtain) airbag deploys from the headliner area to protect occupants’ heads and upper bodies during side collisions and rollovers. This left-side module is fitted along the driver’s side roof rail and integrates with the vehicle SRS (Supplemental Restraint System). Compatibility is focused on the listed models; always verify the matching part number when replacing SRS components.
Installation Recommendations
- Safety First: Work only with appropriate knowledge of SRS systems. Disconnect the negative battery terminal and wait at least 10 minutes to allow the system capacitors to discharge before handling any airbag connectors.
- Removal: Carefully remove the relevant headliner trim and any retainers to access the airbag module. Avoid bending or creasing the headliner; keep trim clips organized for reassembly.
- Electrical: Unplug the airbag electrical connector using correct release tools. Inspect wiring, connectors, and grounding points for damage or corrosion before fitting the new module.
- Fitting: Position the new airbag module exactly as the original, secure fasteners to the vehicle’s mounting points, and ensure connectors engage with a positive click.
- Final Checks: Reconnect the battery, then use a diagnostic tool capable of reading and clearing SRS fault codes to verify system integrity. Confirm that the airbag warning lamp behaves correctly (lamp on during key-on self-test, then extinguishes).
Common Causes Of Failure
- Deployment During A Collision: Once deployed, the airbag must be replaced.
- Electrical Faults: Damaged wiring, poor connector contacts, or corroded pins can interrupt the SRS circuit and trigger faults.
- Water Ingress Or Moisture: Leaks around the roof area or previous water damage can cause connector corrosion and module failure.
- Previous Improper Repairs: Incorrectly reinstalled modules or damaged mounting points after accident repair often lead to operational issues.
For professional results, follow manufacturer repair procedures and diagnostic steps. Replacing an airbag is a safety-critical repair: ensure all SRS checks are completed and the system reports no faults before returning the vehicle to service.
