How do you remove them ???

 

look under the mirror caseing shroud and you will see a small hole.insert a skinny flathead screwdriver in to the hole until you feel it contact something then move the screwdriver handle towords the window or away from the window(not sure).this rotates the mirror unlock device.be careful it doesnt fall out at this point and smash on the ground

 

Cheers m8 i'll give it a go.

 

you need a fairly hard click to get it unlocked
it shouldn't fall out as you should have 2 wires for the heater element holding it in place

 

hopefully ther still in place

 

Move the screwdriver away from the car and they come off, thanks to all who replied .