My parents were suddenly unable to lock their polo from the drivers side? Its an X-reg 1.4 16v.
Having looked at it, it appears that a paddle like thing that comes out of the barrel of the lock has worn, but not quite sanpped off. Hence why we can open but not lock it.
Anybody know if this part is availble and what the part number is. Sorry to be vague, i'll get some photos as soon as.