How to Deal with Foggy Windows on a BMW 3 Series?
1 Answers
Park the car, turn on the air conditioning, adjust the temperature control knob to the warm air setting, then select the defrost mode to dry the fog with warm air. If the fog is not heavy and it's not too cold outside, you can slightly open the windows on both sides to allow air convection inside the car. Such products are available at auto shops or online. Before use, spray evenly on the windows and wipe clean to form a transparent protective film on the glass.