Activating
1. Turn the light switch to 
or
.
2. Press the button on the turn signal lever, arrow.
The indicator lamp in the
instrument
cluster lights up.
When the lights are switched on, the high beams are switched on and off automatically.
The system responds to light from oncoming traffic and traffic driving ahead of you, and to adequate illumination, e.g., in towns and cities.
See also:
Visual warning
The approach of the vehicle to an object can be
shown on the Control Display.
When the distance to an object is small, a red bar
is shown in front of the vehicle, as it is in the PDC
display.
...
Distance
Selecting a distance
Adjust the distance according to the traffic
and weather conditions; otherwise, there is the
danger of an accident occurring. Maintain the
prescribed safety distance.
...
If the worst comes to the worst: BMW Assist Emergency Call with automatic
vehicle location
In the event of an accident in the new BMW 3-Series, the Advanced eCall
function from BMW ConnectedDrive allows the emergency services to receive
detailed information on the type of collision and ...