justady

please can anybody help me. i have recently purchased a 07my type uk wrx sti fitted with hid headlights. i live in germany and need to convert the lights for european driving and would like to know how to convert the beam to a flat pattern. i believe there is a switch inside the headlight unit itself like on beamers and mercs but would like to know if firstly this is true and if so, how do i get to it to change it over.

thanks in advance.