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- Fig. 1 Turn signal and main beam lever: Switching main beam assist on/off
Applies to vehicles: with main beam assist
The main beam assist automatically switches the main beam headlights on or off depending on the surrounding light conditions.
Activating the main beam assist
Important: The light switch must be set to AUTO, the dipped beam headlights must be on and the main beam assist must be activated on the MMI* ►Link.
Push the lever to position -1- to activate the main beam assist. The indicator lamp 
will light up in the instrument cluster display and the main beams will be switched on/off automatically. An indicator lamp 
lights up when the main beams are switched on.
will light up in the instrument cluster display and the main beams will be switched on/off automatically. An indicator lamp lights up when the main beams are switched on.Switching the main beams on/off manually
If the main beams are not switched on or if the headlights are not dipped as expected, you can control the dip function manually:
To switch on the main beams manually, push the lever to position -1-. The indicator lamp will light up. To dip the headlights again, pull the lever to position -2-.
will light up. To dip the headlights again, pull the lever to position -2-.To dip the headlights manually after the main beams have been switched on automatically, pull the lever to position -2-.
Flashing the headlights
Pull the lever to position -2- to flash the headlights when the main beam assist is activated. The main beam assist will remain activated.
Driver messages in the instrument cluster display
Main beam assist: system fault!Drive to a qualified workshop soon and have the fault rectified. You can still switch the main beam headlights on and off manually.
Main beam assist: currently unavailable. No camera viewThe camera vision is impaired, e.g. by stickers or dirt.
The sensor is located between the interior mirror and the windscreen. Do not affix any stickers on this section of the windscreen.
WARNING!
The main beam assist is only intended to assist the driver. The driver must always ensure that the headlights are used when required, and may have to switch them on or off manually, e.g. when the light conditions or visibility are poor. In the following situations manual intervention may be necessary:
- Hazardous weather conditions such as fog, heavy rain and snow or water splashes
- Roads on which oncoming traffic is partially concealed (e.g. on motorways)
- Indiscernible road users (e.g. cyclists with poor lighting)
- Tight corners, steep hill crests or valleys
- Poorly lit towns
- Highly reflective objects, such as road signs
- Windscreen misted up, dirty, frosted or covered by stickers in front of the sensor