Changing Wing Mirrors
I have a set of RS4 mirrors to go on my A3 2.0TDI 170, How easy are the wing mirrors to remove and swap over?
Disconnect the battery's negative cable. This is important, because there is a risk of electrocution if you do not perform this step.
Take off the interior door panel by using your pry tool to remove the trim pieces. Then use the screwdriver to remove the screws holding the panel in place. You may have to remove a corner trim piece before the door panel lifts off.
Unplug the wiring harness if you have power-controlled mirrors. If you have manual roll-down windows, skip this step.
Take out the mirror bolts with either a socket wrench or a nut driver, so that you can remove the entire mirror assembly from the car
Separate the actual mirror from the mirror assembly. Use a torx driver to extract the screws, and then pry the plastic tabs on the backing until the two pieces separate.
Attach the new mirror to the assembly by snapping it onto the backing with the tabs.
Put the new mirror, attached to the backing, into the mirror assembly.
Reverse the steps to reinstall the entire mirror assembly back onto the vehicle.