Adjusting Main Headlights

Position headlight aiming device -1- and align it with the center axis -2- of the dipped beam headlight. → Adjustment value: 775 mm

Fig 1: Aligning Headlight Aiming Device With Centre Axis
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Switch on ignition.
Adjust headlights.
1. 3.1. Lateral adjustment: adjust salient point of the light/dark border to center height adjustment position using adjusting screw -1- .
2. 3.2. Height adjustment: adjust light/dark border of vehicle using adjusting screw -2- . → Adjustment value: - 1 %
  
  Fig 2: Adjusting Light/Dark Border Of Vehicle Using Adjusting Screw
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  
  Fig 3: Identifying Headlights Dimension
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
In the case of Xenon headlights and LED headlights, the ignition must be switched off and back on after the adjustment has been made with the lights switched on.
Then check the adjustment again.