Main headlight
Check whether, when the low beam headlight is on, the light-shadow difference of the horizontal light contour coincides with the horizontal dividing line on the test surface. Ensure that the inflection point "2" between the left part of the horizontal contour and the part of the cutoff line rising to the right is located on the perpendicular dropped from the midpoint "3." The light core of the response beam should be located to the right of this perpendicular.
Important: To more easily determine the turning point "2", you should alternately cover and then release the left half of the headlight several times (when looking in the direction of the vehicle's movement). Then you should check the low beam headlights again. If the low beam is adjusted correctly, the center of the high beam should be at the center mark "3." The same adjustment applies to the existing test screen with a 15° alignment line as to the new screen. To prevent incorrect settings, the 15° straight line must not be taken into account.
Other additional headlights
Additional installed headlights must be checked and, if necessary, adjusted in accordance with current standards and regulations.