Should the AC Switch Be Turned On When Using Car Air Conditioning in Winter?
2 Answers
When using car air conditioning in winter, the AC switch should not be turned on. More details about using car air conditioning in winter are as follows: 1. The AC button is the cooling switch for the car air conditioning. Pressing this button activates the air conditioning compressor, and the air blown out by the blower is cold. 2. In cold winter, when using the car air conditioning, simply adjust the temperature to the highest setting and turn on the air conditioning switch. Do not press the "AC" button, as this is the cooling button, which requires the most work from the air conditioning system and consumes the most fuel. 3. The hot air from the air conditioning does not require "cooling." The car can completely heat the air blown out by the air conditioning using the heat generated by the engine's operation.
Should you turn on the AC switch when using the heater in winter? Absolutely yes. The AC switch controls the air conditioning compressor, which helps dehumidify the air and prevents windshield fogging. Although the warm air comes from the engine, without the AC, the air remains humid—especially on rainy, snowy days or when the windows are cold—leading to instant fogging that obstructs visibility, posing a serious hazard. With over a decade of driving experience, I once tried saving fuel by not using the AC, only to end up wiping the windshield multiple times during a long trip, nearly causing an accident. Since then, I’ve kept the AC on, ensuring clear visibility and much safer driving. Modern cars consume minimal extra fuel with the AC on, barely affecting your budget. Remember: Turn on both the heater and AC right after starting the car, set the temperature around 25°C, adjust the fan to medium, and enjoy a dry, warm, and comfortable cabin. Regularly check the cabin air filter, and occasionally run the AC in winter to disinfect the system, preventing bacterial growth and maintaining a healthy driving environment.
