well next time someone who was electric folding mirrors needs to replace some mirror glass they will have to check if the unit has the motor inside it. apart form new mirrors you would also need a new switch so that you can turn it all the way round to the bottom. mine has a little icon at the bottom of the knob which is how I found them in the first place. if you've got the icon you've got electric folding mirrors I would imagine, as the switches without the icon probably cant spin the knob all the way to the bottom??