Product Overview

High-quality replacement window regulator mechanism for the left front (driver side) window of the Peugeot 307 CC. This unit is suitable for professional workshops and experienced DIY mechanics who need a reliable repair part identified by common OEM numbers 9656221580 / 9221W0 / 1619991480. Designed to restore smooth, quiet movement of the window glass and proper sealing against wind and water.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Peugeot 307 CC (Left Front / Driver Side)
• Product Codes: 9656221580, 9221W0
• Other Numbers: 1619991480, NFP

Compatibility And Fitment

Primarily intended for Peugeot 307 CC (coupe-cabriolet) applications on the left front (driver) door. Always verify the part numbers listed against the unit being replaced—these codes are commonly used to locate the correct regulator for the 307 CC family.

Function And Benefits

The regulator mechanism controls vertical movement of the window glass, converting motor rotation into smooth, guided up/down travel. A correct replacement restores proper sealing, reduces wind noise, prevents glass misalignment and protects against water ingress into the door cavity.

Installation Recommendations

• Disconnect the battery before starting work to prevent short circuits and accidental motor operation.
• Remove the door trim and any vapor barrier carefully to avoid damaging clips and seals.
• Support or secure the glass before detaching it from the regulator (use suction cups or an assistant) to prevent dropping or chipping the glass.
• Disconnect the electrical connector and remove retaining bolts holding the regulator and motor. Transfer any required mounting brackets from the old unit if applicable.
• Reinstall in reverse order, check smooth operation before refitting the trim, and verify window alignment and sealing. Lubricate guide channels lightly with a suitable silicone grease to prolong life.
• If the motor is integrated and exhibits electrical faults, inspect connectors and wiring for corrosion before replacing the entire assembly.

Most Common Failure Causes

• Mechanical Wear: Plastic sliders, cables or gears wear over time causing rough travel or binding.
• Motor Wear: Worn brushes or seized motor bearings reduce torque or stop movement entirely.
• Corrosion And Water Ingress: Moisture inside the door can corrode tracks, fasteners and connectors.
• Cable Fraying Or Breakage: For cable-driven regulators the cable can fray, detach or jam.
• Damaged Guides Or Clips: Broken glass carriers or clips cause misalignment and noisy operation.

Why Choose This Part

This regulator is identified by widely used OEM numbers, making it an effective direct-replacement option for technicians who need a straightforward swap. It restores factory-like movement and helps eliminate common window issues—rattles, slow operation and failure to hold position.

Practical Tips

• Inspect door wiring and switch operation before replacing the regulator to rule out simple electrical faults.
• When replacing, test the full travel and auto-reverse (if equipped) functions before final reassembly.
• Keep fasteners and clips organized and replace any brittle plastic trim clips to ensure a secure refit of the door panel.