Audi Q3 touch screen digitizer have 8.8"and 10.1" two different version for year 2018-2022. If your LCD display still show the map, music, and other info, but won't respond to touches to the screen or the buttons to the side of your display work correctly, but when you touch the display, nothing happens, to replace the touchscreen, which is a thin piece of clear glass that sits on top of the LCD display that will solve your problems.
