How to Turn on the Cold Air in a BMW?
3 Answers
There is a large round knob on the center console inside the car. The blue side represents cold air, the red side represents warm air, and the middle represents a moderate temperature. Turn the knob towards the blue side and press the AC switch to activate the cold air. For warm air, turn it towards the red side. Related instructions are as follows: 1. If the car's interior temperature remains high after being exposed to the sun, the correct cooling process is: First, open the windows and doors for ventilation. After a while, start the car, turn on the fan to disperse the hot air inside the air conditioning system, and then activate the AC for better cooling and fresher air. 2. Some car owners add Freon refrigerant to their cars. During very hot summer days, excessive Freon refrigerant can cause high-pressure limits to be exceeded, leading to engine vibrations that sound like thunder and sometimes even overheating. This is mainly due to the engine's relatively low power and aging equipment.
I've been driving a BMW for 5 years, and turning on the AC is quite simple. First, start the car and press the round snowflake icon button on the AC panel—the indicator light means the cooling is on. Then, turn the temperature knob all the way to the left until the display shows 'LO' for the lowest temperature. Next, adjust the fan speed using the button with the fan symbol—I usually set it to max first and then lower it. If you're using automatic AC, just press the AUTO button and then lower the temperature setting. Remember to turn on the recirculation button for faster cooling. On hot summer days, don't turn on the AC immediately after the car has been sitting in the sun—open the windows for about half a minute to ventilate before closing them, and the cooling will be more effective. If the front seats have ventilation, you can also press the button with the snowflake and fan symbol for added comfort.
As a mechanic who works with BMW cars every day, the key to turning on the cold air is locating three core buttons on the AC panel: the A/C button with a snowflake symbol, the fan speed button, and the air circulation button. After starting the engine, press the A/C button, adjust the temperature, and then set the fan speed in sequence. A temperature around 22 degrees is recommended for optimal comfort. Owners of older BMW models should note that the physical A/C button is located in the center of the knob, while newer models with touchscreens have it in the first tab of the AC menu. Models with automatic AC are even more convenient—simply turn the temperature dial below 20 degrees, and the system will automatically cool. For long drives, switch to external air circulation every two hours to prevent window fogging. Regularly replacing the AC filter is crucial, as neglecting this can reduce cooling efficiency.
