2. Press the fog light switch. Pressing the fog light switch will turn on the fog lights. The fog lights will only work if the headlights are also turned on.
3. Adjust the fog light beams. The fog light beams can be adjusted up or down by turning the fog light adjustment screw. The adjustment screw is usually located on the back of the fog light housing.
Note: Some Volkswagen Passat models may have a separate switch for the front and rear fog lights. If this is the case, you will need to press both switches to turn on all of the fog lights.