Description
Electric window regulator for the left rear window for CITROEN C4 B7. The plastic slider is cracked (commonly on most cars), but solid and fully functional. Door behind the driver.
This used electric window regulator is a practical replacement for mechanics and DIY enthusiasts working on Citroën/Peugeot models. Designed for the left rear door, the unit keeps the glass operating smoothly despite the plastic slider showing a hairline crack — the part remains structurally sound and fully operational. Ideal for cost-effective repairs where the original mechanism still operates but the slider or guide shows wear. Keywords: Citroën C4 B7 window regulator, left rear window motor, 9820885280, 9223H0.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4 B7 (C4 II); Compatible With Some DS4 Variants
- Product Codes: 9820885280, 9223H0
- Other Numbers: No additional reference numbers provided
Function And Benefits
The assembly controls vertical movement of the left rear door glass using an electric motor and a guided slider. It restores smooth up/down travel, reduces rattles, and eliminates intermittent operation caused by worn cables or guides. Replacing the regulator improves sealing, reduces wind noise and prevents the window from dropping in the door.
How To Replace (Overview)
- Remove interior door trim and vapor barrier to access the regulator and motor.
- Detach the glass from the regulator (support the glass to avoid falling).
- Unplug the electrical connector and remove mounting bolts for the regulator and motor.
- Fit the replacement regulator, secure bolts, reconnect electrical connector and reattach the glass.
- Test full window travel before reinstalling the door trim and seals; adjust glass alignment if necessary.
Installation Recommendation
- Work With The Window Fully Supported To Prevent Damage To Glass Or Mechanism.
- Use Correct Trim Tools To Avoid Breaking Clips And Interior Panels.
- Apply Light Lubrication To Guide Rails And Moving Joints During Installation.
- Test The Window Operation Several Times Through Full Travel Before Final Assembly.
- For Electrical Safety, Disconnect The Battery Before Starting Work And Follow Manufacturer Procedures.
Why This Part Most Commonly Fails
Window regulators typically fail due to mechanical wear and environmental exposure. Common causes include:
- Plastic Slider Wear Or Cracking — Repeated up/down cycles and UV exposure make plastic guides brittle over time.
- Cable Or Drum Wear — Frayed cables or worn drum surfaces cause sticking, slipping or complete failure.
- Motor Wear — Brushes and commutators in the motor degrade after many cycles, reducing torque.
- Water Ingress And Corrosion — Poor drainage or damaged seals allow moisture into the door, accelerating corrosion and jamming moving parts.
- Impact Or Misalignment — Door impacts or improper previous repairs can bend rails or misalign the glass, increasing stress on the regulator.
Maintenance Tips
- Keep Door Drainage Holes Clear To Prevent Water Accumulation.
- Lubricate Tracks Periodically With Suitable Grease To Reduce Friction.
- Address Any Window Binding Immediately To Avoid Further Damage To Cables And Motor.
This unit is offered with the listed product codes (9820885280, 9223H0) and is suitable for professionals and experienced DIYers who require a reliable replacement part for the left rear window on Citroën C4 B7 and related models.
