Switching lights on and off
Fig. 82 Next to the steering wheel: examples of the various light switches
First read and observe the introductory information and safety warnings
Observe any country-specific regulations when using vehicle lighting.
In vehicles with a factory-fitted towing bracket, the vehicle's rear fog lights are switched off automatically if a trailer with rear fog lights is electrically connected to the vehicle.
| Turn the light switch to the required position : | ||
|---|---|---|
| Symbol | When the ignition is switched off | When the ignition is switched on |
 |
The fog lights, dipped beam headlights and side lights are switched off. | The lights are switched off, or the daytime headlights or daytime running lights are switched on. |
    |
The orientation lighting can be switched on. | The automatic headlight control and, if applicable, the daytime headlights or daytime running lights are switched on. |
 |
The side lights are switched on. | The side lights are switched on. |
 |
The dipped beam headlights are switched off. The side lights may still light up for a short time. | The dipped beam headlights are switched on. |
Fog lights
The indicator lamps 
or 
in the light switch or instrument cluster indicate that the fog lights are switched on.
- To switch on the fog light : pull the light switch out to the first notch.
- To switch on the rear fog light : pull the light switch out as far as it will go.
- To switch the fog lights off, press the light switch or move it to position .
Acoustic warnings if lights are not switched off
If the key is removed from the ignition lock and the driver door is opened, an acoustic warning will sound in any of the following situations. That will remind you to switch off the lights as necessary.
- If the parking light is switched on , .
- If the light switch is in position
or .
Gas discharge bulbs
Gas discharge bulbs generate bright, uniform light for better illumination of the road. This also improves the visibility of the vehicle for other road users. The light from gas discharge bulbs is generated by passing a very high electrical current between two electrodes located in a gas-filled bulb.
The electrodes wear over time, which increases the distance between them. The control unit for the gas discharge bulbs detect this change and increases the electrical current to ensure that the generated light remains bright and uniform.
However, gas discharge bulbs can also blow. Before they blow, they may flicker or stop generating uniform light. Some vehicles (depending on the equipment level) may display a corresponding notification in the instrument cluster.
If the gas discharge bulbs flicker or stop generating uniform light, go to a qualified workshop immediately to have the headlights checked.
WARNING
The side lights or daytime running lights are not bright enough to illuminate the road ahead and to ensure that other road users are able to see you.
- Always switch the dipped beam headlights on if it is dark, raining or visibility is poor.
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