How to Turn on the Air Conditioning in a Volkswagen Car?

[VincentMarie]

First, start the car, turn the temperature control knob to the cold side (blue end), then turn on the AC switch and the fan (with settings 1, 2, 3, and 4). To get hot air, turn the temperature control knob to the red side and turn on the fan switch. The specific steps are as follows: 1. For cold air, adjust the left knob to the blue side; for warm air, adjust it to the red side, then press the AC switch. The middle button controls the fan speed, and the rightmost button adjusts the mode, allowing you to direct air to the feet, hands, or windshield, or use a combination of modes. 2. If the air conditioning fails to cool, first check if the AC compressor can start and operate normally and verify the refrigerant level. If the compressor doesn't start, there may be an issue with the control circuit or the system may be low on refrigerant, putting the compressor in protection mode. You can check the high and low-pressure line pressures using a pressure gauge, and the refrigerant level can be visually inspected through the observation window on the high-pressure line. Air conditioning cooling issues are common and relatively easy to fix, so it's recommended to take the car to a specialized repair shop for diagnosis based on the above analysis.