How To Fit Replacement Wing Mirror Glass

Damaged wing mirror glass not only hinders clear visibility but also compromises driving safety. Fortunately, replacing the glass is often a simple and cost-effective DIY task that avoids the expense of replacing the entire mirror assembly. This article provides a comprehensive guide to fitting replacement wing mirror glass, covering various mounting mechanisms and offering helpful tips for a smooth and successful installation.

1. Identifying the Correct Replacement Glass

Before starting, accurate identification of the correct replacement glass is crucial. Consult the vehicle's handbook or contact a dealership or parts supplier. The required information typically includes the vehicle's make, model, year, and sometimes the specific trim level. Note whether the mirror is heated, has blind-spot monitoring, or includes other features, as these factors influence the replacement part.

2. Gathering Necessary Tools and Materials

Having the right tools at hand simplifies the process. Most replacements require only basic tools like a screwdriver (often a flathead or Torx), a plastic trim removal tool (to avoid scratching), protective gloves, and a clean microfiber cloth. Some mirror types may necessitate additional tools, so consulting the vehicle's repair manual or online resources specific to the model is advisable.

3. Preparing the Work Area

Working in a well-lit area with ample space is recommended. Lay down a protective covering like a towel or blanket over the car door and surrounding areas to prevent scratches. This also provides a soft surface for laying down removed components and prevents small parts from getting lost. Ensure the wing mirror itself is clean to facilitate easier handling and prevent debris from becoming trapped during reassembly.

4. Removing the Damaged Wing Mirror Glass

The method for removing the broken glass varies depending on the mirror's design. There are several common attachment methods:

a) Levered Clips: Many modern mirrors use clips that secure the glass to the backing plate. Carefully insert a plastic trim removal tool or a small flathead screwdriver between the glass and the housing, gently pressing to release the clips. Work your way around the perimeter, releasing each clip sequentially. Avoid excessive force to prevent further damage to the housing.

b) Adhesive Backing: Some mirrors are affixed with adhesive. Using a heat gun or hairdryer can soften the adhesive, making removal easier. Gently apply heat while slowly working a plastic trim tool or floss behind the glass to separate it from the backing plate. Residual adhesive can be removed with an appropriate adhesive remover, following the manufacturer's instructions carefully.

c) Screw-on Backing Plate: Older vehicles might employ screws to secure the backing plate, which then holds the glass. Locate and remove these screws carefully, ensuring they are kept safe for reassembly. Then, detach the backing plate and the damaged glass.

5. Installing the New Wing Mirror Glass

Once the old glass is removed, the installation process begins. The installation method mirrors the removal process, depending on the attachment type:

a) Levered Clips: Align the new glass with the clips on the backing plate, ensuring proper orientation. Gently push the glass onto the backing plate until all clips engage with an audible click. Confirm that the glass is securely attached by applying slight pressure.

b) Adhesive Backing: Clean the backing plate thoroughly to remove any residue from the old adhesive. Peel off the protective film from the new glass's adhesive backing, carefully align the glass with the backing plate, and firmly press it into place. Hold the glass in position for a few minutes to ensure a strong bond.

c) Screw-on Backing Plate: Place the new glass onto the backing plate and align it correctly. Reinstall the screws, tightening them evenly to secure the glass firmly but avoid overtightening, which could damage the glass or the housing.

6. Testing Functionality and Adjustments

After installation, test the mirror's functionality by adjusting it through its full range of motion. Ensure smooth and unobstructed movement. If the mirror is heated or has other features, test these functionalities to confirm they are operating correctly.

7. Final Inspection and Clean-Up

Conduct a final visual inspection to ensure the new glass is flush with the housing and there are no gaps or visible damage. Clean the new glass with a microfiber cloth to remove any fingerprints or smudges. Dispose of the broken glass safely and responsibly, according to local regulations.