General information
Switch position: 0, 
If the driver door is opened with the ignition switched off, the exterior lighting is automatically switched off at these switch settings:
See also:
Even more entertainment at the wheel: with BMW Live and BMW Online
Subject to owning a suitable internet-compatible mobile phone and arranging a
requisite data tariff, new BMW 3-Series Sedan customers can enjoy a selection of
services from the existing BMW Online ...
Adjusting volume
Turn knob 1next to the CD/DVD player until the desired volume is obtained.
You can also adjust the volume with buttons on the steering wheel. ...
Windshield washer nozzles
The windshield washer nozzles are heated automatically
while the engine is running or the ignition
is switched on. ...