To replace a wing mirror on a VW Polo, start by removing the door panel to access the mirror's mounting screws. Disconnect the electrical connector if your mirror has electrical features. Unscrew the old mirror, then attach the new mirror by securing it with the screws and reconnecting the electrical connector. Finally, reassemble the door panel to complete the installation.
You don't.The unit is integrated and the whole thing has to be replaced.Sneaky VW
yes
How do I replace rear brakes on a VW Polo GTI
To adjust the wing mirrors on a 61 VW Polo, locate the mirror adjustment switch, usually found on the driver's side door panel. Use the switch to select the left or right mirror, then move the joystick or toggle to adjust the mirror's position as needed. Make sure to adjust the mirrors for optimal visibility before driving. If the mirrors are manual, simply push or pull the mirror housing to the desired angle.
You will want to replace a brake light switch on a VW Polo professionally. You do not want to make a bigger situation than you already have. A mechanic will do the job correctly.
The indicator bulb on the VW Beetle wing mirror is an LED which means the unit must be replaced. You need to remove the mirror glass to access the LED.
angle it away from yourself.
replace c/v joints
To change the mirror indicator bulb on a VW Golf MK5, first find the removable panel that covers the attaching screw. Removing the screw will open the panel to give access to the bulb.
http://faculty.ccp.edu/faculty/dreed/campingart/jettatech
http://golfgtiguides.co.uk/guides/remove-mk5-wing-mirror-and-change-indicator/ see the above site...
It has to be professionally done at a dealer or collision repair