6.4.

In the case of headlamps with an adjustable reflector, additional tests shall be made after the reflector has been moved vertically ± 2° or at least into the maximum position, if less than 2°, from its initial position by means of the headlamp adjusting device.  The whole headlamp shall then be re-positioned (for example by means of the goniometer) by moving it through the same number of degrees in the opposite direction to the movement of the reflector.  The following measurements shall be made and the points shall be within the required limits:

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