how to change a peugeot 306 ignition barrel

Remove the plastic cowlings from around the steering wheel and switch gear.
Towards the back on the side of the ignition barrel there is a spring loaded spud. Press this in and when the key is turned to the first or second position the spud will push in and let the ignition barrel slide out of the housing.
If the key has been broken in the ignition you will have to replace the housing and ignition barrel.

The first answerer made it sound Soooooo easy. l hope u have the key to this ignition barrel. If not, say so now.
l hope u have small Torx screw drivers, because u need it to remove the 3 plastic screws on the plastic panel under the steering wheel. The piece above the steering wheel should also lift off then.
l hope u DON'T have to lower the entire steering column to gain access to the little spring loaded pin on top of the ignition barrel. (if so, two 13mm nuts should be removed, under the steering column.)
l hope u have the key to the second / replacement ignition? If not, let me know now.

Within the same model production, there r 6 wires that leave the ignition, sometimes ur replacement may have different colours. Do not worry about this. 6 wires is 6 wires.
Do not be confused by clerks that ask u if u have the BOSCH MA 3.0 wiring or the Marelli G6 wiring. For the ignition switch, it does not matter.

good luck. Do not remove the steering wheel, it should not be necessary, & it is difficult to replace exactly as found.

ok you put the key in the ignition turn to start push the pin in on the outer and key and barrel should come out in one