Conditions Required For Switch - On For The Main-Beam Assistant

WARNING: This page does not describe the selected car, but rather 94 other vehicles, including the 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, 2010 BMW Z4, and 2010 BMW X6 M. However, it is still accessible from the selected car via links, so may be relevant.

Light switch set to position "A"
Dipped headlights switched on.
When the switch is in position "A", the dipped headlights are switched on by the automatic headlight control.
Turn-signal/main-beam switch pressed forward (in forward direction of travel).