How to Turn on the Defogging Function in an Audi?
2 Answers
Audi's one-touch defogging function is located in the central control area. Simply activate this function when fogging occurs to conveniently and quickly remove the fog. To quickly eliminate fog, turn on the AC while increasing the set temperature of the air conditioning. The dehumidification function of the AC will help remove the fog efficiently. Using warm air for defogging is slower, and if the interior is already fogged up, turning on the warm air may worsen the fogging. Therefore, it's essential to turn on the warm air before driving. If the fog inside the car is not severe, you can open the windows on both sides. This creates an air convection between the inside and outside of the car, reducing the temperature difference and causing the fog to dissipate.
When I first learned to drive, I explored Audi's defogging function and found it quite simple to operate. The fan-shaped icon button on the center console is the front windshield defogger—just press it lightly, and the fan immediately blows air onto the windshield to clear fog. The system usually automatically adjusts to high-speed airflow and heating to quickly disperse the mist. Sometimes, you may need to manually set the air conditioning vent direction to the windshield position; turning on the external air circulation mode is even better, as it draws in dry air to speed up the dehumidification process. In cases of heavy fog, wait patiently for a few minutes until visibility is clear before driving. It’s very safe—try it on rainy or winter days. Regularly cleaning the glass to prevent dirt from absorbing moisture and fogging up can also extend the air conditioner's lifespan. Practice a few times to get familiar with it, no worries.
