AC Unit - Small Button | Audi A6 C7 2013

[Ketan]

Can anyone tell me what the little small button does on this Air Conditioning unit.

It does not seem to do anything when pressed.

[Ketan]

Also what is the light/icon to the left of the button?
It looks like some sort of heating indication, but i have never seen i come on.

Thanks in advance!

[mstv]

Might it be the temperature sensor referenced here?

https://www.audiworld.com/forums/a6-c7-platform-discussion-194/mystery-button-climate-control-2824594/

[Ketan]

Any ideas what the icon to the left is?

 

[mstv]

Based on this information: https://www.vwaudiforum.co.uk/forum/showthread.php/137643-Little-button-below-and-right-of-fan-speed-control?p=1037665#post1037665 ...

It looks like the indicator on the left would light up if the auxiliary heating is activated remotely, or via the MMI. Whilst I've seen plenty of references to fuel-based aux heating systems in VW manuals, I've not seen it available in any of the VW group cars I've had. Suspect it's more for the colder bits of Europe.... Someone here will know more. Do you have this feature on your car?