## Lighting

### Fog Light
> Fog lights can only be switched on when the visibility is significantly impeded (rain, snow, fog).

> The rear fog light can only be switched on when the visibility due to fog is less than 50 m.
You can see that the rear fog light is switched on by the yellow/amber control light.

**When are you allowed to use fog headlamps also during the day?**
- When the visibility is considerably reduced:
  - by rain
  - by fog or falling snow
  
**How can you tell whether the rear fog lamp is switched on?**
- ~~By the blue indicator light~~
- ~~By the red indicator light~~
- By the amber indicator light

### Parking Light (or "Limiting Light")
> must be used when the vehicle is parked outside closed places.

> is the one-sided lighting of the car and may only be used within closed localities.

### Residual

**You are driving with main beam lights on in darkness. When do you have to dip your headlights?**
- ~~If there are pedestrians moving in the same direction in front of me~~
- If I am driving on a road with constant, adequate lighting
- If I am required to wait at a rail crossing and dazzling others

**The control light of your indicator is blinking considerably faster than usual. What can be the cause of this?**
- ~~The direction indicator switch is defective~~
- A bulb is defective

**Where is it permitted to flash headlights to indicate your intention to overtake?**
- In daylight outside built-up areas
- ~~In darkness in built-up areas~~
- In darkness outside built-up areas

**The rear lighting systems of your car are covered. What has to be done?**
- A luminaire rail system with all rear lighting systems:
  - ~~need only be attached for journeys at dusk or during the hours of darkness~~
  - ~~need only be attached on journeys longer than 5 km~~
  - must be attached in any case

**You are driving in the dark with dipped headlights. Oncoming traffic flash thier headlights at you. What can this mean?**
- The light range adjustment is not adapted to your vehicle load
- ~~Other drivers are telling you to turn on your main beam~~
- The headlamps on your vehicle are set incorrectly and are dazzling

**What must you remember concerning the lighting equipment of your vehicle?**
- It must be correctly installed
- It must be clean
- It must be in operating condition

**How can you tell while driving that an indicator lamp is not working?**
- The indicator signal light will flash faster than usual
- ~~You cannot detect a defective indicator lamp while driving~~

**How can you tell - depending on the type of vehicle - whether the headlights are switched on full beam?**
- ~~By the red indicator light~~
- By the position of the switch or the blue indicator light
- ~~By the green indicator light~~