Your posting it quite timely Geoff did not want to mention this earlier in case it did not work.

This works on metal bodied mirrors as well.

One of the H2 mirrors had sufered some damage and since OEM ones are very rare / stupidly expensive if you can get them I thought I would try and fix it.

The only way to get the mirror out was to break it, heating the housing it would come out.

With the mirror out I made a reasonable job of knocking out the dents in the housing.

There is a bloke on E Bay that sells 115mm diamater 2mm thick concave mirrors which is what is in the H2 - only £9.

It arrived today, so fitted the mirrror to it's edging strip, then took a heat gun to the mirror body gave it a good blast, and the new mirror and surround went in fairly easily.

Stuck a bit of adhesive around the edging strip just in case but now the mirror has cooled it seems to be held pretty tight.

Still waiting on DVLA to give me a number.....