Central locking system

See also:

Interior
The four-seat interior incorporates a shelved dashboard that houses the navigation display without adding an extra hump in the center, as many BMW dashboards do. Metallic rings grace the dual-zone ...

Activation/deactivation
Press the button. ...

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 ...