How to Turn on the Heater in an Audi?

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Here are the specific steps to turn on the heater in an Audi: 1. Start the vehicle and allow the engine to warm up until the coolant temperature reaches 40°C-60°C or above. 2. Then, turn off the AC button and adjust the air volume and direction to a comfortable setting. 3. Adjust the temperature control to the red zone, and warm air will come out of the vents. 4. Press the AUTO button and set the desired temperature. For vehicles equipped with automatic climate control, simply turn the temperature knob to the desired high temperature value, then turn on the fan speed control switch or press the automatic climate control button.