the car is a UK 1990 325i.
currently the main head lights (not full beam) practically point at the floor, not good for night driving as you can imagine
as i go to adjust them i notice there is a cylindrical unit in place where the usual thumb screw adjustment is. these units have hydraulic hoses coming from them. i tried tracing them back but only get so far before needing to do a major strip down to get access.
there is also a rotational switch buy the drivers right leg to control it.
this system is obviously not working. does anyone know what powers this circuit, where it is?