Johan: Is it possible that your lock for the station wagon 'hatch' (5th door) is set up so that if you turn the key in the tailgate all the way to the left, as in some other models/years, the tailgate WON'T open, on purpose. Earlier models had that ability, perhaps to discourage someone from breaking into the car from a front door,thus popping all of the locks (including the tailgate), and having the tailgate open, for access to whatever it was that they wanted to steal; or, less insidiously, to prevent anyone riding in the back of the wagon from accidentally opening the car from the inside when the car was in motion?--PD.