cool thanks, i think there are two, which one does the height and which one moves them left and right?
Out of the 2 Allen key screws, the one near the center of the car does the height, and the one on the outside, near the turn signal bulb, does the left-right adjustment.
Adjusted mine last night, near a wall. Left (driver, European car) headlight was almost spot on, despite 12 years of rough roads and some chassis mods. Right (passenger) was spot on in horizontal plane, but 12 inches above the mark, at 25 ft from the wall. Went to the spot after 4 turns of the screw. Left the adjustment about 1 inch below the mark, although 2 inches might have been closer to factory requirements.
The rule is: mark the center of the headlight, where the bulb sits, on the wall, back off 25 ft / 7.5 m, adjust the beams to fall 2 inches below the mark.