Description
Driver seat airbag for Citroën C4 II and DS4
This driver seat airbag is a direct-fit safety component for Citroën C4 II (B7) and DS4 models, referenced under the part numbers 9687158380 and 8217F7. Designed for service garages and experienced DIY mechanics, the module restores occupant protection in side-impact scenarios and resolves SRS fault codes related to a faulty seat airbag.
Function And Application
The Seat-Mounted Driver Airbag (side airbag) is installed in the outer side of the driver’s seatback and is designed to deploy in moderate to severe side impacts. Its primary purpose is to protect the chest, abdomen and pelvis of the driver and to reduce the risk of serious injury during a lateral collision. The module contains the inflator and the airbag cushion integrated into a single assembly.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4 II (B7), DS4
- Product Codes: 9687158380
- Additional Numbers: 8217F7
How The Part Is Typically Replaced
Replacement of a seat airbag should be performed by a trained technician or a competent DIYer familiar with SRS systems. General replacement steps:
- Disconnect the negative battery terminal and wait at least 10 minutes to allow the SRS capacitors to discharge.
- Move the seat to gain access, remove seat trim and covers to reach the airbag module mounting points.
- Unplug the airbag electrical connector(s) using manufacturer procedures to avoid damage to locking tabs.
- Remove retaining bolts/clips and carefully extract the airbag module from the seat.
- Install the new module in reverse order, ensuring connectors are fully engaged and mounting fasteners are torqued to the vehicle manufacturer’s specification.
- Reconnect the battery and use a diagnostic tool to check the SRS system, clear fault codes and confirm proper system status.
Installation Recommendations
- Always disconnect the battery before starting work on any SRS components and follow the vehicle manufacturer’s safety procedures.
- Handle the airbag module with the trim side facing away from you; never place a deployed or undeployed airbag face down on a surface.
- Replace any damaged seat‑mounted wiring harnesses or connector housings rather than attempting repairs that could compromise the SRS circuit.
- After installation, run a full SRS system check with a compatible diagnostic tool and confirm that no persistent fault codes remain.
Why The Part Most Often Fails
- Previous deployment in a crash – Once deployed, the airbag must be replaced.
- Connector or Wiring Damage – Faulty contacts, broken wires under the seat (due to seat movement) or corrosion can produce open or short circuits detected by the SRS system.
- Water Ingress – Moisture from spills or leaks can damage the connector and electronics.
- Electrical Faults – Squib or inflator circuit failures detected as SRS faults on the instrument cluster.
- Physical Damage – Seat impact or improper handling during repairs can damage the module.
How Often Replacement Is Required
Seat airbags are generally maintenance-free and are only replaced after deployment, when a fault is diagnosed by the vehicle’s SRS system, or if the module or wiring suffers physical damage. There is no routine service interval; replacement is condition-driven.
Notes For Professionals And DIYers
- Use correct OEM or equivalent part numbers (9687158380 / 8217F7) for fitment to Citroën C4 II (B7) and DS4 models.
- Do not attempt to test the airbag inflator with live power or improvised methods; always use proper diagnostic procedures.
- Record any SRS fault codes and confirm system readiness after installation to ensure legal and safe vehicle operation.
Order this driver seat airbag with the referenced codes to restore occupant protection and clear SRS faults for Citroën C4 II and DS4 vehicles. Suitable for professional workshops and experienced self-repairers who follow SRS safety procedures.
