Activating HDC
Press the button; the LED above
the button
lights up.
See also:
Switching off automatically
The system switches off and the LED goes out:
After approx. 160 ft/50 m when driving forward.
Above approx. 22 mph/36 km/h when driving
forward.
Switch on the system again if necessary. ...
Vehicle care
Car care products
BMW recommends using cleaning and care
products from BMW, since these have been
tested and approved.
Car care and cleaning products
Follow the instructions on the container.
...
DTMF suffix dialing
DTMF suffix dialing can be used for gaining access
to network services or for controlling devices,
e.g., to make a remote inquiry of an answering
machine. The DTMF code is needed for this
purpose. ...