Internal temperature sensor
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 MINI Cooper Countryman, 2015 MINI Cooper Countryman, 2014 MINI Cooper Countryman, 2013 MINI Cooper, and 2012 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.
The value displayed in the BMW diagnosis system for the inside temperature deviates very strongly from the perceived temperature value and the set desired temperature value. This measured value is processed internally in the IHKA control module and adapted for the control operation.