The fog lights on the BMW 5 Series are installed at the front and rear of the vehicle. The fog light switch is located next to the light knob and can be activated with a simple press.
Fog lights are used to illuminate the road and provide safety warnings during rainy or foggy weather conditions. Some models feature a rain and fog mode for the headlights.
In foggy conditions where visibility is low and the driver's line of sight is limited, fog lights can extend the visible distance. Particularly, yellow anti-fog lights have strong light penetration, enhancing visibility for both the driver and other road users.
Fog lights can be categorized into front and rear fog lights, each serving different purposes. Front fog lights can cut through dense fog to alert oncoming drivers, while rear fog lights make the vehicle more noticeable to drivers behind in low-visibility conditions such as fog, snow, rain, or dust.
Fog lights should only be activated when visibility drops below 200 meters. In such situations, standard headlights, width lights, and taillights are insufficient for adequate illumination and warning, necessitating the supplementary use of fog lights.