Thanks, bro. I see in the picture, are u talking about the metal screw above the leveler motor? How about the screw on the motor? I thought the top one is for the high beam.They can and should be adjusted. Inside the car set your leveller switch at 0. The beam should fall 1 cm per meter. So what I usually do is to park the car on a level/plain area, park it 4 meters from a wall and then measure it out.
4 meters is from the projector of the headlight to the wall. Measure the height (TIP: there is usually a small dot on the headlight to denote this), if not, measure from the ground to the center of the projector. I think mine was something like 67 cm above the ground.
So, if my headlight is 67 cm above the ground and it should fall 1 cm per meter, then at a distance of 4 meters from the wall the top of the beam, measured at the wall, should be 63 cm above the ground.
Yes, it's a lot of measuring, but honestly it'll take you five minutes.
See the metal screw on my headlight? That's what you adjust with.