1. Gather Your Tools:
* New Mirror: Ensure you get the correct replacement mirror for your 2003 Galant. Note any features (power, heated) when ordering.
* Phillips Head Screwdriver: (Might need a small, precision one)
* Small Flathead Screwdriver (optional): Helpful for prying or gently separating plastic clips.
* Panel Removal Tool (optional): These plastic tools help avoid scratching the door panel. A sturdy butter knife or similar can be used carefully.
* Towel or Rag: To protect the door panel and your paint.
2. Remove the Door Panel:
This is the most challenging part. The exact steps might vary slightly depending on trim level, but the general approach is:
* Lower Window: Fully lower your passenger window to give you better access.
* Locate the Door Panel Clips: Carefully inspect the edges of the door panel. There are likely several plastic clips and screws holding it in place. You might find some screws near the armrest or under the door handle.
* Remove the Screws: Unscrew any visible screws.
* Gently Pry the Clips: Starting at the bottom edge, carefully insert your flathead screwdriver (or panel removal tool) into the gap between the door panel and the door itself. Gently pry the panel away, working your way around the perimeter. The clips can break if you use excessive force. Be patient and work methodically.
* Disconnect Electrical Connectors: Once the clips are released, the door panel should pull away slightly. Locate the electrical connectors for the mirror (power and potentially heated mirror) and carefully disconnect them. They usually just pop out.
3. Remove the Old Mirror:
* Access the Mirror Mounting: With the door panel removed, you should see the mirror's mounting mechanism. It’s likely held in place with a few screws or clips.
* Remove the Screws or Clips: Carefully remove the screws or detach the clips securing the old mirror.
* Disconnect the Mirror Connector: Disconnect the electrical connector (if applicable).
4. Install the New Mirror:
* Connect the Mirror Connector: Connect the electrical connector to the new mirror.
* Mount the New Mirror: Carefully align the new mirror with the mounting points and secure it with the screws or clips.
5. Reinstall the Door Panel:
* Reconnect the Electrical Connectors: Make sure all electrical connectors are properly reconnected.
* Reattach the Door Panel: Carefully align the door panel and push it back into place, ensuring all the clips snap securely. If you broke a clip, you might need to replace it, but often they can still hold the panel in place securely enough.
* Tighten Screws: Tighten any screws you removed.
6. Test the Mirror:
* Test Functionality: Test the new mirror to ensure it's functioning correctly (adjustability and heating, if applicable). If it's a power mirror, make sure the adjustments work smoothly.
Important Considerations:
* Consult a Repair Manual: A repair manual specific to your 2003 Mitsubishi Galant will provide the most accurate and detailed instructions for removing the door panel and replacing the mirror. These manuals often have diagrams and pictures.
* Take Pictures: Before you start disassembling anything, take pictures of each step to help you remember how everything goes back together.
* Be Gentle: Work slowly and carefully to avoid breaking any clips or damaging the door panel. Plastic clips are easily damaged.
If you're uncomfortable with any of these steps, it's best to take your Galant to a qualified mechanic to have the mirror replaced. It's a relatively straightforward job, but damaging the door panel can be costly to repair.
