Description
Window regulator mechanism for the left rear window for PEUGEOT 308 T9 vehicles — Rear Driver‑Side Door.
Overview
This window regulator mechanism is designed for the left rear door of the Peugeot 308 (T9). It restores reliable, smooth up-and-down movement of the rear driver‑side window and is suitable for professional workshops and experienced DIY mechanics who perform body‑electrical repairs.
Key Features
- Replacement mechanism for the left rear window of Peugeot 308 T9.
- Compatible with product codes commonly referenced in parts lists and repair orders.
- Designed to meet the fitment and mounting points of the original assembly for straightforward installation.
- Ideal for replacing worn regulators that cause slow movement, noise, or window drop.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 308 (T9)
- Product Codes: 9800273480, 9826080480
- Other Numbers: N/A
Installation Recommendations
- Safety First: Disconnect the negative battery terminal before beginning to avoid accidental motor operation and electrical short circuits.
- Access: Remove the interior door trim and peel back the moisture barrier to access the regulator and motor assembly.
- Support Glass: Secure the glass in the fully up position with tape or a support to prevent it from falling when the regulator is unbolted.
- Disconnect Wiring: Unplug the window motor electrical connector before removing the regulator fasteners.
- Removal/Installation: Remove the mounting bolts that secure the regulator to the door shell, extract the assembly, and fit the new regulator reversing the removal steps.
- Test Before Reassembly: Reconnect the battery and test window travel, alignment, and switch operation before reinstalling the moisture barrier and trim.
- Recommended Tools: Trim removal tools, Torx/Sockets set, ratchet, flat screwdriver, support strap or tape, and gloves. Use a multimeter to verify power if motor does not respond.
- Professional Tip: Clean and lightly lubricate guide channels and check glass clamps for wear. Ensure connectors and wiring are dry and corrosion‑free before final assembly.
Why This Part Commonly Fails
- Wear of Motor Brushes or Bearings: Motors in frequently used windows degrade over time and can lose torque or seize.
- Cable Fraying or Breakage: Cable‑driven regulators can suffer from frayed or broken cables, leading to slipping or no movement.
- Worn Plastic Sliders and Guides: Plastic sliders wear or break, causing binding, rattles, or misalignment.
- Water Ingress and Corrosion: Moisture penetrating the door can corrode tracks, fasteners, and electrical connectors.
- Mechanical Damage: Impacts to the door or excessive force (e.g., obstructed glass) can bend tracks or damage the mechanism.
- Typical Lifespan: Longevity depends on usage and environment; failures are more common on higher‑use vehicles or in corrosive climates.
Compatibility And Ordering
This item is most frequently searched by its product numbers 9800273480 and 9826080480. Confirm the part number against your repair documentation or parts list to ensure correct fitment for the left rear (driver‑side) door of Peugeot 308 T9 models.
Additional Notes For Mechanics
When replacing the regulator, check the condition of the door wiring harness, switches, and fuses as part of a complete diagnosis. Replacing the regulator and addressing a weak motor or corroded connector at the same time reduces repeat visits and improves long‑term reliability.
