1. Preparation:
* Disconnect the battery: This is crucial to prevent accidental short circuits.
* Gather tools: You'll need a trim removal tool (plastic pry tool is best), a Phillips head screwdriver, possibly a Torx screwdriver (depending on your specific model), and potentially a ratchet and socket set.
2. Removing the Door Panel:
* Interior Door Handle: There's usually a screw hidden under the cover of the interior door handle. Remove this screw. Some models may require removing the entire handle assembly.
* Window Switch Panel: Remove the screws securing the window switch panel. This panel typically pops off easily once the screws are removed.
* Armrest: If present, remove screws securing the armrest and carefully detach it.
* Door Pull/Pocket: The door panel often has a storage pocket. This may have screws or clips holding it in place. Remove them.
* Door Panel Clips: Starting at the bottom edge of the door panel, carefully use your trim removal tool to pry the panel away from the door. These clips can be brittle, so work slowly and gently. Work your way around the perimeter of the panel, releasing the clips as you go. There are likely several clips along the edges and possibly some towards the top near the window.
* Wiring Connectors: Once the clips are released, the panel should be loose. Carefully disconnect any electrical connectors (window switch, courtesy light, etc.). These usually have a small lever or tab that you push to release.
3. Accessing the Window Regulator:
* Once the panel is removed, you should have access to the window regulator mechanism. The motor might be visible, but the regulator itself may be behind it.
* Inspect the Regulator: Look for broken cables, stripped gears, or any other obvious damage.
Important Notes:
* Take Pictures: Before you start disassembling anything, take pictures of the process. This will be invaluable when you put everything back together.
* Label Wires: If you disconnect any electrical connectors, label them clearly to avoid misconnections during reassembly.
* Repair or Replace: Depending on the nature of the problem, you may be able to repair the window regulator (cable replacement is common) or you may need to replace the entire unit.
Disclaimer: This is a general guide. The exact procedure may vary slightly depending on your specific vehicle. Always consult a repair manual specific to your 2002 Land Rover Discovery SE2 for detailed instructions and diagrams to avoid damage to your vehicle. If you're not comfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic.
