Description
Seat belt for CITROËN C4 Picasso or C4 Grand Picasso. Left rear seat – behind the driver.
This left rear seat belt is a direct-fit replacement for Citroën C4 Picasso and C4 Grand Picasso vehicles, supplied under the original part references. It restores the primary occupant restraint on the rear left position and is suited for mechanics and experienced DIYers who perform safety-related repairs. The part is commonly searched by product codes 9654437977 and 8974XP, so listing those numbers helps quick identification in catalogs and search engines.
Key Properties And Function
The seat belt assembly secures the rear-left occupant by combining webbing, retractor and locking mechanism into a single safety system. Its functions include inertial locking during sudden deceleration, free webbing payout during normal use, and retention during impact. Replacing a worn or damaged belt restores crash protection and seat-belt reminder system functionality where applicable.
Technical Information
- Manufacturer: Stellantis (Citroën)
- Model: Citroën C4 Picasso / C4 Grand Picasso (Left Rear)
- Product Codes: 9654437977, 8974XP
- Additional Numbers: 8974XP (alternate reference)
Installation Recommendations
Follow a methodical procedure to ensure safety and correct operation:
- Disconnect the vehicle battery before starting work to avoid accidental deployment of pyrotechnic pretensioners and to prevent electrical damage.
- Remove interior trim panels carefully to access the retractor and anchor bolts. Keep plastic clips and screws for reassembly.
- Unbolt the lower anchor and the retractor mounting. Note routing of the webbing and position of the stopper clips.
- Install the new belt in the same orientation, ensuring the webbing is not twisted and runs freely through the retractor.
- Tighten fasteners to the vehicle manufacturer’s torque specifications and secure all trim panels. Do not guess torque values—use the workshop manual.
- Check Operation: Verify smooth extraction and automatic locking under a sharp pull test. Confirm the buckle latches and releases correctly.
- If The Unit Contains A Pretensioner: Treat any pretensioner components as single-use. Do not attempt repairs; replacement by a qualified technician is required.
Why This Part Fails Most Often
- Crash Deployment: Seat belts or pretensioners are designed to activate in a collision and must be replaced after deployment.
- Mechanical Wear And Contamination: Frayed or contaminated webbing (dirt, oil, chemicals) reduces strength and can impair retractor function.
- Corrosion And Fastener Damage: Rusted anchors or seized bolts can prevent correct operation or safe mounting.
- Retractor Locking Faults: Inertia or locking mechanisms can seize over time, causing the belt to stick or fail to lock.
Replacement of a faulty belt restores occupant protection and is a critical safety repair. Use the listed product codes (9654437977, 8974XP) to confirm fitment for the left rear seat in Citroën C4 Picasso and C4 Grand Picasso models before installation.
