However, here's a general outline of the process. Remember, this is a *general guide* and variations might exist. Proceed with caution:
1. Disconnect the Battery: This is crucial to prevent accidental shorts and potential damage to your electrical system.
2. Remove the Door Handle Components: Usually, there are screws hidden behind the door handle itself (sometimes under small covers). Remove these screws to release the handle mechanism. This will give you access to more of the door panel.
3. Remove the Window Crank (if applicable): If your Marquis has a manual crank for the rear window, remove the crank. This usually involves a small screw or clip.
4. Locate and Remove the Door Panel Screws: These are typically found along the edges of the panel, around the armrest, and sometimes near the door pull. Use the correct size screwdriver (likely Phillips head). Count them carefully as you remove them to ensure you get them all back in the correct place during reassembly.
5. Release the Panel Clips: Once the screws are removed, the panel is held on by plastic clips. These vary in design but generally snap into place. You will usually need to gently pry the panel away from the door, starting at the bottom edge. Use a plastic trim tool or a flat, non-metallic object (like a plastic putty knife) to avoid scratching the door or panel. Work your way around the perimeter, carefully releasing the clips one by one. Be extremely gentle here; broken clips are common and annoying to replace.
6. Disconnect Electrical Connectors: After releasing the clips, you'll find electrical connectors for the power window switch, courtesy light, and possibly other components. Carefully disconnect these connectors. Some connectors may have a release tab; gently press this tab before pulling the connector.
7. Remove the Door Panel: Once all the screws, clips, and connectors are removed, carefully pull the door panel away from the door.
Repairing the Electric Window: Once the door panel is removed, you can access the window regulator mechanism. Common issues include broken motors, worn gears, or broken cables. Repairing the window regulator can be complex, so be prepared to troubleshoot and possibly replace parts. Again, a repair manual will be incredibly helpful here.
Reassembly: Reassemble the door panel by reversing the removal steps. Make sure all clips are properly seated and all screws are tightened securely. Reconnecting the electrical connectors is crucial. Test the window operation before completely replacing the panel.
Disclaimer: This is general advice. The exact procedure may differ depending on the specific trim level and options of your 1996 Mercury Marquis. Consult a repair manual to avoid damaging your car. If you're uncomfortable performing this repair yourself, take it to a qualified mechanic.
