What are the methods for defogging the windshield of an Audi A6?

[StArabella]

Audi A6 windshield defogging methods include using the air conditioning system and opening windows for air convection. Air conditioning system defogging: Using the air conditioning to defog is a common practice. Turn on the cold air to blow on the glass for a direct defogging effect. However, passengers in the car may feel very cold, and if the humidity inside the car is not removed, fog will reappear on the glass shortly. Using hot air to blow on the glass is more effective than cold air, but the effect is slower to take hold compared to cold air. Opening windows for convection: If the fog is not heavy and the outside temperature is not too low, you can lower the windows on both sides slightly to allow air convection inside the car. As the interior temperature gradually approaches the outside temperature, the fog will dissipate.