No need to remove the headlights to adjust, very simple.
Just unbolt the sidelight, one 11mm nut.
This reveals the adjustment screw for vertical up and down on the face of the headlight. Garb a philip's head scredriver and turn accordingly, very simple.
If you do need side horizontal aiming its a bit more work and the headlight has to come out, but there is adjustment. Once you see how their mounted you'll see how.