underneath the centre console is a clamp in the clamp should be your 2 brake cables that control your handbrake ...you can tighten them there ...use spanner as is a squeeze to get a socket on
this is for a peugeot 306 made in 1999 (phase 3):to do this you need to remove the long plastic bit that surrounds the handbrake and the gear stick. When you've done this you'll be able to get access...
By the hand brake its self under the carpet you will see two cables with a adjuster nut on each, tighten each nut equally on each side do not over tighten or this will make the brake shoes bind...