How to open the Audi external circulation?

The outer circulation button is located under the center console, and the middle button is the button to control the inner and outer circulation. Press the button when the indicator light is on to indicate the start of the inner ring, and press the button again when the indicator light is off to indicate the start of the outer ring. In general, external circulation is adopted.

An automobile air controller belongs to a control device of automobile air conditioning equipment. Automobile air conditioning system has the functions of refrigeration, ventilation and defrosting. All equipment is firmly installed, the control device and operating mechanism are flexible in rotation, convenient in operation and safe and reliable in performance. Automobile air control system consists of refrigeration system, heating system, ventilation and air purification device and control system. Auto zero has four functions:

1. The air conditioner can control the air temperature in the carriage, and can heat and cool the air, so as to control the temperature in the carriage at a comfortable level;

2. Air conditioning can remove moisture from the air. Dry air absorbs human sweat and creates a more comfortable environment;

3. The air conditioner can suck in fresh air and has ventilation function;

The air conditioner can filter the air and remove the dust and pollen in the air.