Fix a rear view mirror on your car
1 of 3
Photo 1: Prep the broken mirror
Remove the loose pieces of glass and
clean the remaining glass and the
base with glass cleaner.
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Photo 2: Apply sealant
Apply a bead of black rubber sealant
3/4 in. in from the edge of the
plastic base and a few dollops in other
locations. Then press the new mirror
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Photo 3: Finished result
The finished project looks just like
You don’t have to replace the
entire side view mirror assembly
just because the glass is broken.
Replacing the mirror glass is a do-it-yourself
project that is usually inexpensive.
Several manufacturers offer precut
glass mirrors to fit vehicles of all
makes and models. One is Dorman
Products Inc. Our local auto parts
store didn’t carry the mirror for our
Ford Expedition, so we ordered it
from Dorman online.
You’ll also need a tube of
black rubber sealant (Permatex, for example), sold at any auto parts store.
Start the repair by picking away as
many loose pieces of the broken mirror
as you can. Wear leather gloves and
eye protection while doing this. You
can leave the old adhesive in place.
Then clean the remaining glass and
the plastic mirror base with glass
The new glass comes with adhesive
strips on the back, but don’t rely on
those strips alone to keep the glass in
place. Apply a thick bead of black rubber
sealant 3/4 in. in from the perimeter
of the plastic mirror retainer. Put a
few large dollops of the sealant on the
honeycomb portion of the plastic base
and a few more on the old broken
glass. Don’t apply the sealant in areas
where the adhesive pads will contact
the plastic base. The pads must make
contact with the plastic base to hold
the new glass in place while the sealant
sets up. Apply the mirror to the base.
Use masking tape to hold the mirror
in place until the sealant cures.