How to remove left side door sill switch plate?
 

I've managed to push the trunk release switch through and need to remove it to repair it.

There's three plugs on the side of the trim panel. Removing those will give you access to three allen head bolts. Sorry but I don't remember the size. 4-6mm? You don't need to completely remove the bolts. Just loosen them a little and the panel should pop off.