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BDifficulty 2/5

During the day, in dense fog or torrential rain that reduces visibility, may you use main beam if it does not dazzle and the other applicable conditions are met?

Correct answer

Yes, but it is advisable to switch on dipped headlights.

Yes: article 106.2 provides for front fog lights, dipped headlights or main beam when visibility is significantly reduced. Main beam is not restricted exclusively to night, but article 102 requires changing to dipped headlights when it could dazzle. In dense fog, reflected light may impair vision and dipped headlights with the applicable fog lights are generally preferable. Rear fog lights are used only in particularly adverse conditions. Legal permission does not mean main beam is always the best choice.

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  • No, I will only use full-beam headlights at night.

  • Yes, but it is advisable to switch on dipped headlights.

  • No, I will only use dipped headlights.

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