I came up with this method to renovate the rear view mirror. On both my cars the glass and mirror had a dirt fog on them and the plastic bezel had split in the corners. If somebody more creative and intelligent than me comes up with a better method then I’m all ears!
Fog
Split plastic
The idea is to use some U section rubber edge strip like this:
https://www.amazon.co.uk/gp/product/B00YW7J0ZS/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
to replace the plastic bezel but retain the plastic holder for the mirror, Im sure you guys can find something more local to you.
Even if the plastic part holding the mirror is broken, some pics above showing how it's held, we still need retain it to keep the mirror in place.
We need to cut the plastic bezel away from the mirror holder using a sharp craft / hobby knife, leaving just the part that holds the mirror also it's important to be as accurate as possible and not to leave any bumps or ridges.
Next trial fit the rubber U section with the mirror and plastic holder in place, this will give you an idea of how much to trim off one leg of the U section so it fits flush to the mirror and the edge of the metal mirror housing. Fit the rubber all the way around to get the required length. Now carefully cut one leg of the U section down, I wasn’t very accurate at first and had to redo it.
When you are happy with the fitment install the mirror and remains of the plastic holder then the rubber U section placing the split/join at the top of the mirror.
Now comes the fun part, you have to install the glass under pressure so its held in by the friction of the rubber. Make sure you have polished the mirror and glass!!! Keep your sticky fingers of the insides.
The glass edge is sharp and roughly cut, it has a tendency to catch on the U section rubber folding the top over and in; so go slowly and take your time preventing the glass edge from catching the rubber as you keep pressure on the glass and work your way around using your fingers. The corners are the hardest especially the last one.
Here you may be able to just see how the glass catches the rubber
At some point the glass will fully push home, then you are done!