What is the function of the Thermometer in the Audi A2?

I am trying to understand more about the different parts in my Audi A2. Can someone explain the purpose of the thermometer and how it works?

The thermometer in an Audi A2 is used to measure the temperature of the engine. It helps to monitor if the engine is overheating and allows the driver to take appropriate action if necessary.

The thermometer also helps to regulate the temperature inside the car by adjusting the heating and cooling settings accordingly. It ensures that the passengers are comfortable and the engine is running at optimal temperature.