Description
Electric window regulator for the right rear window Citroën C8 and Peugeot 807
High-quality electric window regulator and motor assembly designed as a direct replacement for the right rear door on Citroën C8 and Peugeot 807 models. Ideal for professional workshops and DIY mechanics who search by part number: this unit is commonly referenced under codes 1494840080 and 922480. The assembly restores smooth, reliable up-and-down movement of the rear window, reduces noise, and eliminates irregular operation caused by worn mechanisms.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C8, Peugeot 807
- Product Codes: 1494840080, 922480
- Additional Numbers: NFP
- Location: Right Rear Door (Passenger Side Rear)
Function
The unit combines an electric motor with a mechanical regulator (scissor, cable or track type depending on OEM specification) to raise and lower the rear side window. It converts rotational motion from the motor into linear motion of the glass, providing controlled, positionable movement and safety stop features implemented by the vehicle’s door electronics.
Common Failure Causes
- Mechanical wear: Worn gears, sliders or cable fraying lead to uneven movement or complete failure.
- Water Ingress And Corrosion: Moisture inside the door can corrode the mechanism or motor contacts.
- Electrical Issues: Faulty connectors, damaged wiring or motor burnout cause intermittent or no operation.
- Misalignment And Binding: Damaged window guides or buildup in channels increases load on the motor and accelerates wear.
- Age And Usage: Components typically wear over many years of use, especially on vehicles exposed to harsh conditions.
Replacement Procedure
Recommended for experienced technicians or competent DIYers. Typical steps:
- Disconnect the vehicle battery before beginning work to avoid short circuits and accidental motor operation.
- Remove the interior door trim and vapor barrier carefully to access the regulator assembly and motor.
- Support the glass in the up position (tape or assistant) and detach the glass from the regulator mounts.
- Unplug the electrical connector and remove the fasteners securing the regulator/motor to the door shell.
- Extract the old unit, fit the replacement, reconnect the glass, and verify smooth operation before reassembling the door trim.
- Check window alignment and run the window several cycles to seat components and confirm correct fitment.
Installation Recommendations
- Always disconnect the battery before starting and follow manufacturer procedures to avoid damage.
- Inspect door seals, guides and the channel for wear or debris; clean and lubricate sliding surfaces with appropriate grease.
- Replace worn clips or fasteners and ensure the glass is correctly seated in the regulator brackets.
- Use dielectric grease on electrical connectors to improve corrosion resistance.
- After installation, verify full travel and listen for abnormal noises; adjust alignment if necessary.
Why The Part Most Often Fails
Failure is usually caused by a combination of mechanical wear and environmental factors. Repeated stress on plastic gears or cables, combined with moisture and dirt ingress in the door cavity, leads to increased friction and eventual motor overload. Electrical faults from corroded connectors or intermittent wiring can also mimic mechanical failure and should be checked during diagnosis.
Note For Professionals And DIY Mechanics
This part is commonly searched by its product numbers (1494840080, 922480), so listing these codes in repair documentation helps ensure correct replacement. Proper diagnosis should include both electrical checks and mechanical inspection to determine the root cause before replacing the regulator.
