This replacement electric motor drives the left front (driver’s) window regulator on Citroën C4 first‑generation models. It is a direct-fit component commonly searched by its product codes (9647442280, 9647441480, 9681575280, 9221AW), so customers and technicians often find this part using those reference numbers. The motor is designed to interface with the door regulator assembly and the vehicle’s electrical connector; when fitted correctly it restores smooth up/down movement of the glass and reliable operation from the driver’s switch.

Key Benefits

– Direct fit for Left Front (Driver) Door Regulators on Citroën C4 first series.
– Compatible with several OEM reference numbers frequently used in parts lookups.
– Restores normal window operation and can eliminate slow, intermittent or noisy movement when the problem originates in the motor.

Compatibility / Models

Fits Citroën C4 First Generation (first series) left front (driver’s) door window regulator. Often cross‑referenced by the product codes listed below. Always confirm the part orientation (left/front) and connector shape against the vehicle before installation.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 First Series (Left Front / Driver’s Door)
• Product Codes: 9647442280, 9647441480, 9681575280, 9221AW
• Additional Numbers: 9221AW (alternate reference), other cross‑references may apply

Typical Symptoms Indicating Motor Failure

– Window moves slowly or stops in one direction.
– Intermittent operation or only works when the switch is held/pressed at certain positions.
– Grinding, clicking or whining noises coming from the door when operating the window.
– Window falls into the door or becomes misaligned due to motor/regulator slippage.

Why This Part Usually Fails

The most common causes of electric window motor faults are wear of internal brushes and commutator, worn or stripped reduction gears, contamination from water or dirt entering the door cavity, corrosion on electrical connectors, and excessive mechanical load from a seized or poorly lubricated regulator mechanism. Repeated heavy use and exposure to moisture accelerate wear and can lead to intermittent electrical contacts or mechanical failure.

Installation Recommendations

– Before starting work, switch the ignition off. It is recommended to disconnect the negative battery terminal when removing door electronics to prevent short circuits and to protect vehicle electronics.
– Remove the interior door trim and protective vapor barrier carefully to access the regulator and motor assembly.
– Disconnect the electrical connector and unbolt the motor from the regulator. Note the regulator mounting points and fixings; transfer any required clips or carriers to the new unit if they are not included.
– Inspect the regulator tracks, slider carriers and glass runners. Clean and lubricate moving parts with appropriate grease before assembly to reduce load on the motor.
– Fit the motor in the correct orientation, tighten fasteners to the proper torque, reconnect the electrical connector and test window operation fully (up/down) before reassembling the door trim.
– After installation, verify that the window seals correctly at the top of travel and that there is no binding or abnormal noise. Adjust regulator alignment if necessary.

Notes For Mechanics And DIYers

This motor is commonly searched by the reference numbers listed above, so include those codes when ordering or checking compatibility. When replacing the motor, also inspect the regulator mechanism and glass support for wear—replacing a worn regulator bush or slider at the same time prevents premature rework. Testing the motor with the door partially assembled helps confirm correct operation and avoids repeated removal of the door trim.