How do you adjust head lights on an Audi A4?

To adjust the headlights on an Audi A4, first park the car on a level surface about 25 feet from a wall. Turn on the headlights and mark the center of the light beam on the wall with tape. Use a screwdriver to adjust the vertical and horizontal alignment screws located on the headlight assembly until the top of the beam is at the tape mark and the beam is centered. Finally, repeat the process for the other headlight to ensure both are aligned properly.