What is the general temperature for using car air conditioning in winter?
4 Answers
In winter, the car air conditioning temperature is generally set between 18 degrees Celsius and 25 degrees Celsius. Below are detailed introductions to specific components of the car air conditioning system: 1. Air conditioning pressure sensor: Usually installed after the dryer, it is used to detect the hydraulic pressure of liquid refrigerant flowing through the expansion valve. Three wires: detect high pressure and low pressure. In case of refrigerant leakage and compressor oil loss after a car collision, to prevent compressor damage due to lack of oil, once low pressure is detected, the compressor power is quickly cut off. When high pressure is detected, the compressor power needs to be reduced to avoid wasteful energy consumption. 2. Air conditioning temperature sensor: Usually installed inside the temperature sensing package, it is the evaporator temperature sensor. When the temperature drops to a certain level, the compressor needs to be shut down to prevent frosting and eventual ice blockage from further cooling. 3. Air conditioning compressor relay: Usually installed on the compressor, it is used to control the compressor's start, stop, and power switching functions.
When driving in winter, I usually set the air conditioning temperature between 20 and 22 degrees Celsius. This range is the most comfortable, with a moderate temperature difference between the inside and outside of the car, reducing the risk of catching a cold after getting out. After starting the car, don’t rush to set a high temperature—let the engine warm up for a few minutes first, then gradually increase it. Setting the temperature too high not only wastes fuel but also easily causes the windows to fog up, so I often use the auto mode, which automatically adjusts the fan speed and activates the defogging function. Remember, switching between recirculation and fresh air modes is also important. In freezing weather, using recirculation helps maintain warmth more efficiently, but during long drives, switch to fresh air mode for ventilation. Regularly check the cabin air filter to ensure fresh air, and in dry winter conditions, avoid directing the vents straight at your face.
I often drive long distances and prefer the winter air conditioning temperature around 19°C. Lowering it saves fuel since high temperatures increase engine load and fuel consumption. Although auto mode is intelligent, I manually set it for better environmental friendliness, paired with low-speed fans to reduce noise. Large temperature differences between inside and outside can easily cause fogging, so I'm accustomed to activating the defogger in advance. If it's too cold, I temporarily raise it to 21°C as a transition. Other fuel-saving tips include regular maintenance and turning off the AC before parking to avoid engine idling and resource wastage, which is both eco-friendly and economical.
Maintaining an in-car temperature of 22°C while driving is optimal to avoid cold risks. Especially with children, stable temperature is crucial – too high may cause motion sickness, too low leads to shivering when exiting. The auto system automatically defogs to prevent window condensation affecting visibility. For healthy driving, ensure ventilation; prolonged recirculation may cause stuffiness. Periodically switch to fresh air mode and adjust fan speed for full-body warmth.
