Hey, New Audi owner here, please can someone enlighten me how the AC button is meant to work.

In "Auto" mode I cannot seem to toggle the button; when I press it; it lights up then as I release it turns off? which leads me to believe the AC is not working?

I've posted a video below; Can someone let me know if you think this is a genuine problem before I take it to a garage. I cannot tell if the air is actually being cooled in the current mode as it is cold outside.

Any advice appreciated! Thank you. Darren (Model A5 Sport 3.0 TDI 2009)