See also:

Running out of fuel (diesel)
On vehicle fitted with HDi engines, the fuel system must be primed if you run out of fuel; refer to the engine compartment view on the "Diesel engine" page. If the tank on your vehicle is ...

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: ...

Programming
Turn thumb wheel 1 to the "CRUISE" position: the cruise control mode is selected but is not switched on (PAUSE). Set the programmed speed by accelerating to the required speed, then pre ...