What to do if the one-touch window control of Audi A6 is not working?

[Mila]

For the one-touch window control setting, start the vehicle, first press and hold the button to lower the window completely for 3 seconds without releasing, then pull and hold to raise the window to the top for 3 seconds before releasing. In the infotainment system, select: MENU > Vehicle > Left adjustment button > Vehicle settings > Central locking > Press and hold to open windows. Lightly press or pull to raise the window to the top, release after 3 seconds, then lower the window completely, release after 3 seconds, and the one-touch window control setting is now complete.