See also:

Horn
Audible warning system to alert other road users to an imminent danger. Press the central part of the multifunction steering wheel. Use the horn moderately and only in the following circumstances: ...

Engines and gearboxes (4C, 4E, 4H)
4C...: 5-door. 4E...: SW with bench rear seat. 4H...: SW with individual rear seats. 4C...: 5-door. 4E...: SW with bench rear seat. 4H...: SW with individual rear seats. 4C...: 5-door. ...

Boot (308 SW with bench rear seat, 308 SW with individual rear seats)
  Opening After unlocking the vehicle using the remote control or the key, pull the handle and raise the tailgate. Closing Lower the tailgate using the interior grab handle. If the tai ...