High-quality replacement right-hand seat airbag designed for Citroën Xantia and Peugeot 406. This seat-mounted airbag (passenger side) provides thorax/side protection as part of the vehicle’s Supplemental Restraint System (SRS). Ideal for professional workshops and experienced DIY mechanics who search by part number: 9647806780, 8216T7, 9450631380. Fits original equipment locations and restores occupant protection after deployment or damage.

Key Benefits

• Direct Fit For Original Mounting Points — Simplifies Replacement And Reduces Installation Time.
• OEM-Part Number Cross-Reference Included — Easier To Find By Code 9647806780 / 8216T7.
• Designed For Seat-Mounted Side Airbag Function — Protects Torso And Pelvic Area In Side Impacts.

Applications And Fitment

Compatible With: Citroën Xantia (Models From Mid-1990s To Early 2000s) And Peugeot 406 (Models From Mid-1990s To Early 2000s). Intended For The Right-Hand Seat (Passenger Side In Left-Hand-Drive Vehicles). Always Confirm Visual Match Of Connector And Mounting Before Installation.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën Xantia; Peugeot 406
• Product Codes: 9647806780; 8216T7
• Additional Numbers: 9450631380

Function And Typical Failure Modes

The Seat Airbag Is Part Of The Vehicle SRS And Deploys In Specific Side-Impact Scenarios To Reduce Injury To The Torso And Pelvis. Common Reasons For Replacement Include:

• Deployment During A Crash — Airbag Must Be Replaced After Activation.
• Electrical Or Connector Damage — Broken Pins, Corrosion, Or Short Circuits Can Cause Airbag Faults.
• Physical Damage To The Seat Or Module — Wear, Moisture Ingress, Or Mechanical Damage During Previous Repairs.
• SRS Warning Light / Diagnostic Faults — Error Codes Indicating Circuit Open/Short Or Resistance Out Of Range.

Installation Recommendations

• Always Disconnect The Battery Before Starting Work And Wait At Least 10 Minutes To Allow The SRS Capacitor To Discharge.
• Follow Manufacturer Seat-Trim Removal Procedures To Avoid Damaging Airbag Connectors Or Clockspring Components.
• Handle The Airbag Module Carefully — Keep The Inflator Face Away From You And Store With The Cover Upwards.
• Inspect Wiring Harness And Connector For Corrosion Or Damage; Replace Damaged Clips Or Wires Before Reassembly.
• After Fitment, Clear SRS Codes Using A Diagnostic Tool And Verify System Integrity; If The SRS Light Persists, Recheck Connections And Wiring.

Why This Part Is Important

An Intact Seat Airbag Is Critical For Side-Impact Protection. Replacing A Faulty Or Deployed Airbag Restores The Intended Safety Levels For Occupants. Using The Correct Part Number (9647806780 / 8216T7 / 9450631380) Ensures Proper Fit And Compatibility With Seat Mounting And Connector Interfaces.

Notes For Professionals

This Airbag Is Supplied For Professional Installation. Ensure Correct Handling Procedures For SRS Components, Observe Electrostatic Precautions, And Use Manufacturer Repair Information For Torque Values And Mounting Details.

Common Search Terms

Right Seat Airbag, Citroën Xantia Airbag, Peugeot 406 Airbag, 9647806780, 8216T7, 9450631380, Passenger Seat Airbag, Seat-Mounted Airbag Replacement.

Recommended Service Life And Replacement

Airbags Do Not Have A Typical Wear Interval Like Mechanical Parts; Replacement Is Usually Required After Deployment Or When Diagnostic Codes Indicate A Fault. Inspect The System After Any Crash Or If The SRS Warning Lamp Is Illuminated.

Common Causes Of Damage

Mechanical Impact, Water Or Humidity Ingress Around Seat Base, Improper Handling During Seat Removal, Connector Corrosion, And Electrical Short Circuits Are The Most Frequent Causes Of Malfunction.

Assembly Tips

• Replace Mounting Fasteners If Deformed; Use Correct Grade Fasteners Per Manufacturer Guidance.
• Make Sure Connector Locking Tabs Fully Engage To Prevent Intermittent Contacts.
• Perform A Post-Installation Diagnostic Check To Confirm System Status And Clear Any Historic Fault Codes.

This genuine-style replacement right passenger seat airbag is designed for Citroën Xantia and Peugeot 406 models and is frequently searched under OEM numbers 9450631380, 9647806780 and internal code 8216T7. Ideal for professional workshops and experienced DIY mechanics, the module restores occupant protection after deployment or when the airbag circuit shows faults. Clear, manufacturer-related product codes increase findability in online searches and make the part easy to locate for repair orders.

Technical Information

Manufacturer: Stellantis (Citroën / Peugeot)

Model: Citroën Xantia, Peugeot 406

Product Codes: 9450631380, 9647806780, 8216T7

Other Numbers: NFP

Function

The seat-mounted passenger airbag is part of the SRS restraint system. In the event of a significant frontal or offset impact, the module inflates within milliseconds to reduce forward movement of the passenger and lower the risk of head and chest injuries. The unit contains an inflator and a folded cushion integrated in the seat structure and connects to the vehicle SRS wiring harness.

When To Replace

Replace the airbag if it has deployed in a crash, if diagnostic trouble codes indicate an open/short or internal inflator fault, or if the airbag shows physical damage (rips, burns, contamination). There is no routine calendar interval for replacement; service is required after any event that triggers the airbag system or when SRS warning lamps remain on.

Installation Recommendations

• Disconnect the vehicle battery and wait at least 10 minutes before starting work to allow the SRS capacitors to discharge.
• Use appropriate tools and avoid power tools directly on airbag fasteners to prevent damage to the module or connectors.
• Carefully remove seat trim and access panels to reach the airbag module; unplug the SRS connector by releasing the locking tab—do not pull on wiring.
• Handle the airbag module with care: keep the deployment surface pointed away from you and place the module with the cushion facing upwards when set down.
• After fitting the new module, reconnect the battery and clear SRS codes with a diagnostic tool; verify the system’s status and confirm the airbag indicator extinguishes.
• Follow vehicle manufacturer procedures and torque settings for seat and airbag fasteners where specified.

Most Common Reasons For Failure

• Deployment In A Collision — The airbag is designed for one-time use and must be replaced after activation.
• Connector Or Wiring Damage — Corrosion, broken pins, or damaged seat harnesses can cause open/short faults and SRS warnings.
• Physical Damage During Repairs — Incorrect removal or impact to the seat structure can damage the inflator or cushion.
• Contamination Or Moisture — Water ingress into connectors or the seat base may lead to electrical faults.

Search by product codes 9450631380, 9647806780 or 8216T7 to quickly find compatible units for Citroën Xantia and Peugeot 406. Suitable for professional fitting; replacement restores proper operation of the passenger restraint system and ensures occupant safety.