How to Adjust the Temperature of Car Air Conditioning?
3 Answers
To adjust the temperature of car air conditioning, follow these steps: 1. Start the engine; 2. Locate the temperature adjustment knob, where blue indicates cooling and red indicates heating; 3. Turn on the AC button and rotate the temperature adjustment knob to the blue side for cooling; 4. For heating, there is no need to turn on the AC button, simply rotate the temperature adjustment knob to the red side; 5. Gradually increase the fan speed by rotating the fan speed knob clockwise. The functions of the air conditioning system include: 1. Controlling the temperature inside the vehicle cabin; 2. Removing humidity from the air, drying the air to absorb human sweat and creating a comfortable driving environment; 3. Allowing fresh air intake; 4. Filtering the air to remove dust and pollen.
After driving for ten years, I've learned that adjusting the air conditioning is quite simple. Most cars have a temperature knob—turning it clockwise usually makes the cooling stronger, while turning it counterclockwise increases the heating. Cars with automatic air conditioning are even smarter: after starting, press the AUTO button, then turn the knob to set the target temperature (e.g., 25°C), and it will automatically balance the fan speed. In winter, the engine needs a few minutes to warm up before the heater blows warm air; otherwise, cold air comes out first. Don’t forget to check the recirculation mode—external circulation provides better ventilation but may reduce cooling efficiency, while internal circulation cools faster but can feel stuffy over time. Regularly replacing the cabin air filter ensures cleaner airflow, making driving much more comfortable—no sweating in summer and staying warm in winter. If performance drops, it might be due to low refrigerant levels, so visit a professional shop instead of tampering with it yourself to avoid damage.
I use my Hyundai car's air conditioning quite frequently, always keeping it on during my commute. The method is to press the AUTO button immediately after starting the engine, then input the desired temperature, such as 22°C in summer or 28°C in winter, and the system automatically adjusts the fan speed to avoid noise. If I don't prefer the automatic mode, I simply use the manual knob—turning it left or right to adjust the cooling or heating gradient. Some newer models come with a touchscreen infotainment system, where I can tap the temperature icon for more precise settings. Related tips include: opening the windows for ventilation before turning on the AC in the morning to save energy, and lowering the fan speed for quieter operation during short trips. I've noticed that the AC performance varies with the seasons, so it's best to have the cooling system checked before the seasonal transition in spring to avoid breakdowns on the road. Incorrect temperature settings can also affect engine load—on long trips, optimizing the settings helps save fuel without increasing consumption, which feels quite worthwhile.
