Excuse me, after Volvo turned off the engine, the air conditioner ran out of gas.

Automatic: automatic air conditioner. Press the car air conditioner to turn it on, and control the air outlet temperature according to the sensor in the car, hot air in winter and cold air in summer. It will keep a proper temperature in the car. If the temperature is too high or too low, the air conditioner will automatically change the temperature and wind speed of the air outlet and adjust the temperature inside the car. A/C: abbreviation of air condition, which translates to air control or air conditioning. Its function in automobile can be understood as air conditioning and refrigeration switch. Note: The heat source of the car air conditioner heater is provided by the engine coolant, that is, the "water" in the water tank. Two water pipes are led out from the small circulation loop of engine coolant and connected to the heater box inside the air conditioning assembly (generally in the lower center of the instrument panel, no water drops can be seen without disassembling the instrument panel). This small water tank provides heat source for the air conditioning heating system. Even in summer, there will be more than 90 degrees of coolant passing through this small warm air tank. Knowing where the warm air comes from, it can be concluded that using air-conditioned warm air in winter will neither affect power nor increase fuel consumption. The air conditioner switch controls the compressor for refrigeration, so turning on the air conditioner in winter will not increase the power of the warm air, but will waste the compressor to do useless work. Now, the automatic air conditioner of the car is so intelligent and perfect that the occupants in the car have a comfortable ambient temperature, and at the same time, they can't feel the wind. The automatic air conditioner can automatically choose to open or close the air outlets at different positions according to the light sensor and multiple in-vehicle temperature sensors, automatically adjust the air volume, and automatically turn on/off the A/C switch to control the air outlet temperature in the form of adjusting the ratio of cold and hot air, so as to ensure the constant in-vehicle temperature.