Done these on a 2015 2.0tdi 184. These are copied and pasted from the obdeleven forum this is what I followed, the wording is slightly different but you should be able to work it out by looking through the available changes.
More cold in the cooler
With this mod 30% more cold in the climate control is achieved. (Thanks to Xagico)
1 - Module 08 - Electronic air conditioning / heating
2 - Extended Coding (Text)
3 - Temperature Adjustment
4 - Change value: Set colder func.refrig
Show climate control fan speed with LEDs in AUTO mode
As you know, in manual mode the speed segments are led us indicating the fan speed, however they are not automatic. With this mod the it'll also show in automatic mode.
1 - Module 08 - Electronic air conditioning / heating
2 - Extended Coding (Bytes)
3 - Byte 11
4 - Enable Bit 6
Another way:
1 - Applications
2 - When Enable fan level display
3 - Apply
Another way:
1 - Electronics Module 08- air conditioning / heating
2 - Extended Coding (Text)
3 - Select - Indicator turbine Adj. Automatic
4 - Change value to On
Read more:
http://forum.obdeleven.com/thread/764/coding-adaptations#ixzz5HUECmpN7