What must you remember concerning the lighting equipment of your vehicle?

You answered correctly. For the lighting equipment on your vehicle, it is important to ensure three things: First, the lights must be properly installed so they function as intended and meet legal requirements. Second, all lights must be clean because dirt or snow can significantly reduce their visibility and effectiveness, putting you and others at risk. Third, the lights must always be in proper working condition, meaning bulbs should not be faulty and connections need to work so that you can see and be seen clearly, especially in poor visibility. Paying attention to all three aspects helps you drive safely and legally in Germany.