Steering wheel controls

Radio: select previous /
next stored station.
Media: select genre / artist / folder from the classification list.
Select previous / next item in the menu.
Radio: automatic search
toward higher frequencies.
Media: select next track.
Media, press and hold: fast forward.
Scroll within the list.
Change audio source.
Confirm selection.
Answer / end phone call.
Press for more than 2 seconds: access the phone menu.
Radio: automatic search
toward lower frequencies.
Media: select previous track.
Media, press and hold: rewind.
Scroll within the list.
Increase volume.
Decrease volume.
Mute: press the volume up and volume down buttons at the same time.
Restore sound: press one of the volume buttons.
Test yourself
A quick Citroen DS3 quiz: every answer comes with an explanation and a link to the manual page.