Using this Owner's Manual

See also:

Safety switch for the rear
Press the button on the driver's door if children are being transported in the rear. This locks various functions so that they cannot be operated from the rear: safety switch. ...

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 ...

Rear CD/DVD player
1 CD/DVD slot 2 Eject CD/DVD 3 On/off, right 4 Headphone connection, right 5 RCA sockets 6 Headphone connection, left 7 On/off, left ...