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Common theory questions

Are you allowed to combine dipped beam headlights and fog lights?

No, fog lights must not be combined with either dipped headlights or daytime running lights.

In daylight you may replace dipped headlights or daytime running lights with fog lights.

In darkness you may only replace dipped headlights with fog lights in the event of fog, heavy rain or snowfall.

The following light combinations are prohibited:

  • Dipped headlights and fog lights
  • Dipped headlights and daytime running lights
  • Dipped headlights and auxiliary lights
  • Fog lights and daytime running lights