Method 1: Sliding Clip
Some Expedition mirrors use a simple sliding clip. Look closely at the base of the mirror where it attaches to the windshield. You might see a small slot or a release mechanism. Try gently sliding the mirror towards the windshield or away from it. There might be a small tab or button you need to depress while sliding. This is usually the easiest method.
Method 2: Pressure Clips
More likely, it uses pressure clips. These require more finesse and patience:
1. Gently Pry: Use a thin, plastic pry tool (a credit card works in a pinch, but a plastic trim removal tool is better). Insert it carefully between the mirror housing and the windshield. Start at one edge and work your way around, applying gentle, even pressure. Avoid excessive force, as you could damage the mirror or the windshield.
2. Feel for Clips: As you pry, try to feel for the clips releasing. They usually make a slight "pop" sound as they come loose.
3. Work Slowly: Go slowly and deliberately. If you feel significant resistance, stop and try a different approach. There might be a hidden clip.
Method 3: Unscrewing
In a few rare cases, there might be small screws holding the mirror in place. Check behind the mirror housing for any small screws that might be concealed.
Important Considerations:
* Protect the Windshield: Cover the area around the mirror with masking tape to prevent scratching the windshield.
* Plastic Pry Tool: A plastic pry tool is essential to avoid damaging the mirror or windshield. Metal tools can easily scratch or break things.
* If Stuck: If you can't remove the mirror easily, stop. Forcing it can result in damage. Consult a professional mechanic or auto glass installer.
If you're unsure, take pictures before you start so you can remember how it goes back together. If you can provide a picture of the mirror's base, it would help determine the exact removal method.