The AFS optimises illumination and enhances safety by enabling earlier response to better illuminated obstacles. It gradually shifts the light patterns so that it does not disturb the driver. It is automatically activated by the light sensors, which switch on the headlights under low light conditions. With automatic adaptation of the light beam the headlamp modules swivel in the direction of the turn indicated by the angle of the steering wheel and light leveling changes according to acceleration and inclination. The width and length of the light pattern changes with vehicle speed, assuring visibility at high speed.