When I did mine, was middle of the night, in the middle of nowhere (and was rather p-ssed at VW at the time for delivering a car with lights adjusted to view bushes not the road ahead!) and had some, self-inflicted, stress figuring out which screw does what for light aim adjustment (have one white plastic screw on left and other white plastic screw on right side of each light - the screws obviously mirror each other for the left light and the right light, needs a screwdriver with a longer shaft), never can remember which does what - so is suck and see for me each time as I went back and forth to see how it looked from inside the car.

To figure left/right adjustment I found it easier to do it with high beam on and have the other light covered (easier to see which way it is moving) as you have a pronounced bright spot in the center that moves on the wall, whereas with low beam you can easily tell if it goes up/down as there is a clean line at the top of the light on the wall - however, you can't really see it move left or right easily as the light is quite even across most of its spread.

I tried to do the horizontal adjustment first (bloody thing was pointing at the bushes to the right instead of straight ahead) before I figured out that having the high beam to do this works much better - hence the self-inflicted stress as I worked the screwdriver but did not see much movement happening!


Earned learning:

1. cover the light you are not working on (top/blanket/someone in front of it)

2. use low beam for vertical adjustment - easier to see top of light line move

3. use high beam for horizontal adjustment - easier to see the high beam bright spot move


If in doubt or are unsure re adjusting your headlights - there's plenty of info on the internet about how to set them right . . .