How to remove broken side mirror glass?

What do you want to remove? If you want to replace just the glass, visit a shop that replaces automotive windshields. They can remove the old glass, and they usually have pre-cut replacement mirrors in stock.

If you want to replace the entire mirror, here's the instructions for that:

Drawing 1

Drawing 2

CAUTION: The claws of the mirror are prone to breakage when working in cold temperatures. Always warm up the mirror claws and their periphery to 20 °C (60 °F) or higher before handling.

Slant the mirror upward with your hands. Then insert a flat-tipped screwdriver wrapped with protective tape between the pivot plate and mirror through the notch from behind the mirror. Now pry off the mirror claws and remove the mirror as shown.

INSTALLATION SERVICE POINT

]]A[[ DOOR MIRROR ASSEMBLY INSTALLATION

Drawing 3

CAUTION: When assembling the door mirror, check to see that the claws of the door mirror are inserted into the notch of the front door run channel.

]]B[[ DELTA COVER INSTALLATION

Drawing 4

CAUTION: If the delta cover is placed with the clip on the door panel, the clip may be pushed into the door panel and fall off. Thus, special care is necessary.

Install the delta cover with the clip installed.

I'd wait to see the new piece first. That way you can see what is involved. For example, the instructions make reference to "claws". I could imagine those as being some type of clips that snap into place. Those clips would be molded as part of the plastic frame the glass is glued to.

While there still might be a plastic frame that is snapped in, you might get only the glass that has to be glued to it. If that is the case, consider using a hot-air gun to soften the glue so the old pieces can be pulled off. You should be able to hit a spot where the glue is softened, but not yet hot enough to melt any plastic parts.

Here's a photo I found on the Rock Auto web site. Everything points to the glass as coming as part of an assembly. It sounds like this just snaps into place.

Since yours is already broken, there's nothing to lose by tugging on the plastic frame to see if it will snap off. Once you have it off, you can see what holds it on and if there's an easy or better way to remove a good one.

As an alternative, you might look for a salvage yard where you can pick your own parts. Here in the U.S, they are popping up all over. One in particular is "Pull-A-Part". That is a chain of over two dozen yards that are very clean and well-organized. I've been to 16 of them. Customers and employees have always been very friendly and helpful, and parts are inexpensive. You pay your dollar, then you take in your own tools and you can spend all day there. You can do an inventory search on their web site to see where they have various models, but they can't tell you colors, optional equipment, or which parts are broken or already gone. At most yards, they bring in about four dozen new cars every day.

The instructions are in my first reply. Please let me know how this turns out.