When I try and lock or unlock my Xantia the key just spins around in the lock, if you wiggle the key as you turn it after a while you can get the key to 'bite' and then the central locking operates normally until you take the key out and you're back to square one.
As the passenger door lock doesn't work either and nor does the remote control locking I'm having to leave the car unlocked at the moment
Cheer Gavin
Xantia door locks
Moderator: RichardW