Example: dialing a phone number
1. 
Briefly press
the button on the
steering wheel.
2. ›Dial number‹ The system says: »Please say the number«.
3. For instance, ›123 456 790‹
The system says: »123 456 790. Continue?
4. ›Dial‹ The system says: »Dialing number«.
See also:
Functional readiness of the airbagsystem
When the ignition is switch on,
the warning
lamp in the instrument cluster lights
up briefly and thereby indicates the operational
readiness of the entire airbag system
and the belt tensioner.
...
Adjusting the volume
Turn the knob until the desired volume is selected.
The setting is stored for the remote control
currently in use.
The vehicle automatically adjusts the volume of
the microphone on the telepho ...
Remove unnecessary cargo
Additional weight increases fuel consumption. ...