How do you replace the mirror switch-knob on a 2000 VW Jetta?

Answer 1

The easiest way to change the switch is to slide a small screwdriver between the old switch and the trim on the door towards the front of the car. It has to go in a bit more than a centimeter to release the catch on the switch. You can see how far by looking at the new switch. The small screw driver will stay in place by itself since it is squeezed between the switch and the trim.

Place a coin or something hard on the trim close to the switch, and take another screwdriver and slip it under the switch and pry outwards against the coin. The switch should pop out and you can grab it and pull out far enough to disengage the cable.

Then just hook up the new one and pop it back into place.