Description
Driver’s seat airbag for CITROËN C8 and PEUGEOT 807. Color HZR – Grey Astrakhan.
High-quality seat-mounted airbag module designed for the left side of the front seat in Citroën C8 and Peugeot 807 models. This airbag is often searched and identified by OEM numbers 5252940, 5129066 and code 8216NQ, so including the part number in your search will speed up finding the correct replacement. Ideal for professional workshops and DIY mechanics who maintain Stellantis group vehicles.
Application and Function
This seat airbag is a side-impact restraint mounted in the seat structure. In the event of a side collision it deploys to protect the thorax and pelvis of the occupant, working together with the vehicle’s SRS control system and door airbags. The module includes the airbag cushion and inflator assembly configured for left-side installation.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C8, Peugeot 807
- Product Codes: 5252940, 5129066, 8216NQ
- Additional Numbers: 5129066, 8216NQ
- Position: Left front seat (seat-mounted side airbag)
- Color: HZR – Grey Astrakhan
Replacement Guide
Replacing a seat airbag requires care and basic workshop tools. Typical steps used by professional mechanics:
- Park vehicle on level ground and switch ignition off.
- Disconnect the negative battery terminal and wait at least 10 minutes to allow the vehicle’s SRS capacitors to discharge.
- Remove seat trim panels and trim clips to access the seat airbag connector and mounting points.
- Carefully disconnect the airbag electrical connector (follow connector lock-release procedure).
- Unbolt the airbag module from the seat frame, replace with new unit, and reassemble in reverse order.
- Reconnect the battery, start the vehicle and verify that the SRS warning light behaves normally (remains off after initial self-check).
Always follow the vehicle manufacturer’s service manual and torque specifications when available. If unsure, have installation performed by a qualified technician.
Why This Part Fails Most Often
Seat airbags are usually replaced after deployment in a collision. Outside of crashes, the most common causes of airbag faults are electrical connector corrosion, wiring damage from seat movement, moisture ingress and mechanical wear to seat components that affect the connector or mounting. Fault codes in the SRS system typically indicate when the module is faulty or disconnected.
Service Life And Notes
There is no fixed service interval for airbags. They must be replaced if they have deployed, if the SRS system reports a fault related to the module, or if the module or connectors are physically damaged. Ensure correct left/right orientation when ordering—this listing is for the left front seat airbag.
Compatibility And Search Tips
Search by OEM/product codes (5252940, 5129066, 8216NQ) or by vehicle model (Citroën C8, Peugeot 807) to quickly find matching parts. Using the exact part number increases the chance of an accurate match.
