1. Preparation is Key:
* Clean the surfaces: This is the MOST crucial step. Thoroughly clean both the windshield and the back of the mirror mounting base with isopropyl alcohol (rubbing alcohol) and lint-free cloths. Remove any existing glue residue completely. Use a plastic scraper if necessary, being very careful not to scratch the glass. Let the surfaces dry completely. Any dust or grease will prevent a good bond.
* Assess the damage: Examine the mirror's mounting base and the windshield. If the mounting base is cracked or significantly damaged, you'll likely need a replacement mirror. If the windshield is damaged around the mounting area, this could compromise the bond and professional repair might be necessary.
* Gather materials: You'll need:
* Appropriate adhesive: Automotive-grade windshield adhesive is essential. Do NOT use super glue or other general-purpose adhesives. Look for a product specifically designed for rearview mirrors or windshields. Check auto parts stores for options. Many are designed for this specific application and come with a mixing nozzle.
* Clean lint-free cloths: Microfiber cloths are ideal.
* Isopropyl alcohol (rubbing alcohol): For cleaning.
* Plastic scraper (optional): For carefully removing old adhesive residue.
* Masking tape (optional): To hold the mirror in place while the adhesive cures. Only use this if the adhesive instructions permit it.
* Safety Glasses: Protect your eyes from flying debris or adhesive spray.
2. Applying the Adhesive:
* Follow the adhesive instructions: Each adhesive product will have specific application instructions. Carefully read and follow them. This usually involves mixing two parts of the adhesive if it's a two-part epoxy.
* Apply evenly: Apply a thin, even bead of adhesive to the back of the mirror's mounting base, according to the instructions. Don't overload it; too much adhesive can cause it to ooze out and make a mess.
3. Attaching the Mirror:
* Careful placement: Carefully position the mirror onto the cleaned windshield, ensuring it's aligned correctly. Press firmly and evenly for the time specified by the adhesive manufacturer.
* Securing (if needed): If the adhesive instructions allow, use masking tape to hold the mirror in place while it cures. This helps prevent it from shifting during the drying process.
4. Curing:
* Allow sufficient curing time: Let the adhesive cure completely according to the manufacturer's instructions. This could take several hours or even overnight. Do not disturb the mirror during this time. Avoid driving the vehicle.
5. Final Inspection:
* Check for stability: Once the adhesive is fully cured, gently test the mirror to ensure it's securely attached.
Important Considerations:
* Professional help: If you're uncomfortable with this repair, it's best to take your vehicle to a professional auto glass repair shop. They have the right tools and experience to ensure a proper and safe repair.
* Warranty: Using the wrong adhesive could void any warranty on your vehicle's windshield.
* Safety: A poorly re-attached mirror could be dangerous. If you have any doubts, seek professional help.
This guide provides general instructions. Always refer to the specific instructions provided with the adhesive you choose. Good luck!