How do I turn on/off the aircon for the BMW 5 Series?

To turn on the aircon: 

1. Locate the aircon control panel as shown in the picture below.

2. Press the Snowflake button.
3. Press the AUTO button to let the car automatically adjust your temperature.
4. Adjust the fan speed by tapping on the Small Fan or Big Fan button.

To turn off the aircon: 

Press the Snowflake button.