Audi A4 TDI: Fahrenheit Conversion (99)

Hello,
'You spend some time searching for these stupid climate codes, and when you finally find them, you suddenly encounter a setting that isn't even described in them. So, I have a 1999 A4 Avant TDI (facelift model, with a different Climatronic panel). Since I've been messing around with the hidden and supposedly secret climate codes, the outside temperature and climate temperature displays on my car have been switched to Fahrenheit. I've already found the conversion tables, but it's a hassle in the long run. Is there a way to switch the displays back to Celsius?'
Please help.
Thank you!

Sure, try it with:
By simultaneously pressing the 'ECON' and 'AUTO' buttons, you can toggle the display between °C and °F.
(Golf Climatronic)
Try at your own risk, good luck!