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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.
A sensor (located in the mounting for the interior mirror) detects light sources from other road users. The main beams are activated or deactivated automatically depending on the position of vehicles on either side of the road, on the road speed, and on other traffic and ambient conditions.
On vehicles with matrix LED headlights, individual segments of the main beam are activated or deactivated. The relevant sector in front of the vehicle is masked, while the surrounding areas remain lit. The ambient surroundings are thus illuminated optimally without dazzling other road users.
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 infotainment system link►.
Press the lever forwards -3- Fig. ► to activate the main beam assist. The indicator lamp
will light up in the infotainment 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 infotainment 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 -3-. The indicator lamp
will light up.
will light up.
To dip the headlights manually, pull the lever towards you -4-. The main beam assist will be deactivated.
Flashing the headlights
Pull the lever towards you -4- to flash the headlights when the main beam assist is activated and the main beams are dipped. The main beam assist will remain activated.
Driver messages on the infotainment display
Main beam assist: fault. See owner s manual
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. Camera view restricted due to surroundings. See owner s manual
The 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 insufficient lighting or vehicles with dirty rear lights)
- 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
Note
The main beam assist is deactivated whenever you intervene by switching the main beams on or off manually -3-.