See also:

Activating HDC
Press the button; the LED above the button lights up. ...

M Sport package
The M Sport package brings the ultimate in sporting makeovers to the new BMW 3-Series. An all-new aerodynamic package for the exterior clearly sets cars specified with this package apart from the ...

Switching off
The system can be deactivated as follows: ▷ Press the button. ▷ Switch off the ignition. ...