Checking the headlamp adjustment using the vehicle diagnostic tester

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-- Press the function button -1- in the main menu of the Headlamp Adjusting Unit :VAS 621 001 .

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Using the light selection buttons at the Headlamp Adjusting Unit :VAS 621 001 select the menu >>low beams<<.

-- The lowest part of the horizontal cut-off line must touch the test surface dividing line -1- when the low beams are on.

Fig 1: Identifying Headlamp Adjustment Setting Line -1-, Break-Away Point -2- And Center Point/Mark -3-

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-- The bend point -2- between the left horizontal part and the right ascending part of the cut-off line should run vertically through the central point.

NOTE:

To make it easier to determine the bend point -2-, cover and uncover the left half of headlamp (as seen in driving direction), alternating a few times. Then check the low beam again.

After adjusting the low beam according to the instructions, the center of the high beam light beam must lie on the center mark -3-.