See also:

Tire inflation pressure values over 100 mph/160 km/h
320i   328i 335i ...

Switching on/off and interrupting cruise control
Switching on Press the button on the steering wheel. The indicator lamps in the instrument cluster light up and the marking in the speedometer is set to the current speed. Cruise control c ...

Tone
Only treble and bass can be set in the rear. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...