Description
Safety Pyrotechnic Pretensioner For Citroën C4 Picasso Or C4 Grand Picasso. Right Front Seat – Passenger.
Used safety pyrotechnic seatbelt pretensioner designed for the right front (passenger) seat of Citroën C4 Picasso and C4 Grand Picasso models. This original-equipment part (OE) carries the product codes 9657326277 and 8974YG and is suitable for professional garages and experienced DIY mechanics who need a direct replacement pretensioner to restore the occupant restraint system after repair or accident-related work. The pretensioner is a crucial SRS component that tightens the belt instantly in a severe impact, reducing occupant forward movement and improving airbag effectiveness.
Applications
Fits Citroën C4 Picasso And C4 Grand Picasso – Right Front Seat (Passenger Side). Verify Product Numbers For Exact Fit (9657326277 / 8974YG).
Function
The Pretensioner Contains A Pyrotechnic Charge That Activates During A Crash To Retract The Seatbelt Webbing Immediately, Removing Slack And Helping To Secure The Occupant In Combination With Airbag Deployment. It Is An Integral Part Of The Vehicle SRS (Supplemental Restraint System).
Replacement Procedure
- Disconnect The Battery And Wait At Least 10–15 Minutes Before Starting Work To Reduce The Risk Of Unintended Deployment.
- Remove Interior Trim Panels Or Seat Covers As Required To Access The Pretensioner Mounting Points And Electrical Connector.
- Unplug The Electrical Connector Carefully; Do Not Pull On Wires.
- Unbolt The Pretensioner From The Seat Or B-Pillar Using The Correct Fasteners And Follow Manufacturer Torque Recommendations When Reinstalling.
- After Mechanical Fitment, Use A Diagnostic Tool To Clear SRS Fault Codes And Verify System Readiness (See Installation Recommendations).
- Always Follow The Vehicle Manufacturer Service Manual For Specific Steps And Safety Precautions.
Technical Information
- Manufacturer: Stellantis / Citroën
- Model: Citroën C4 Picasso, Citroën C4 Grand Picasso
- Product Codes: 9657326277, 8974YG
- Additional Numbers: 9657326277; 8974YG
Installation Recommendations
Replacement Of A Pyrotechnic Pretensioner Should Be Carried Out By A Trained Technician Or An Experienced DIY Mechanic Familiar With SRS Systems. Always Disconnect The Battery Before Work And Observe Anti-Static Precautions. After Fitting, Use An Appropriate Diagnostic Tool To Clear SRS Fault Codes And Confirm Proper Operation. For PSA Vehicles, Diagnostic Tools Such As DiagBox Or Lexia Are Commonly Used To Read And Reset Airbag/System Faults.
Why The Part Most Often Fails
Most Common Causes Of Pretensioner Failure Include Previous Deployment During A Collision, Electrical Circuit Failures (Damaged Connector Or Wiring), Corrosion Or Moisture Ingress, Physical Damage From Impact Or Improper Handling, And Faults Detected By The SRS Control Unit During Self-Checks. Pretensioners Rarely Fail Without Cause — They Are Typically Replaced After Deployment Or When An SRS Fault Indicates A Squib Circuit Problem.
Notes For Mechanics And DIYers
Keep The Pretensioner Oriented And Handled As Specified By The Manufacturer; Avoid Heat, Sparks, Or Uncontrolled Impacts Near The Unit. Do Not Attempt To Disassemble The Pretensioner. Use Genuine Or Correct-OE Parts For Safety-Critical Repairs. Retain Product Codes (9657326277 / 8974YG) For Fast Search And Correct Sourcing.
