Led Headlamp, Adjusting, 8EX, 8IT

Special tools and workshop equipment required 

• Vehicle Diagnostic Tester
• Headlamp Adjusting Unit released by VW/Audi

The headlamp must be calibrated after the following procedures:

• Headlamp position was changed (removing and installing, loosening and tightening the screws)
• The Headlamp Range Control Module -J431- has been replaced.
• A level control system sensor has been replaced.
• There is an entry in the DTC memory that indicates the headlamp basic setting is missing.

Requirements

• Pay attention to the testing and adjustment requirements. Refer to HEADLAMP, ADJUSTING, GENERAL INFORMATION .

Procedure 

-- Turn on the low beams (but not set at "Auto").

-- Connect the Vehicle Diagnostic Tester.

-- Select and start the Diagnostic  operating mode.

-- Select the Test plan  tab.

-- Select the Select individual test  button and select the following tree structure consecutively:

• Vehicle functionality
• Adjusting/calibrating headlamps

TIP:

The headlamps move into the basic setting with this program.

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.

-- During the program, it will be asked to perform a headlamp adjustment.

TIP:

The image and the following description apply to analog headlamp adjusting units. On digital headlamp adjusting units, for example Headlamp Adjusting Unit: VAS 621001  , follow the operating instructions. Refer to Headlamp Adjusting Unit Operating Instructions.

The headlamp adjusting unit must be aligned to the vehicle.

-- For that, put the headlamp adjusting unit in front of the vehicle in centered position, with a distance of 100 mm to the vehicle and align to the vehicle front. Refer to Headlamp Adjusting Unit Operating Instructions.

-- Slide the headlamp adjusting unit in front of the corresponding headlamp and check the alignment again.

• LED headlamp (8EX): The headlamp adjusting unit must be aligned to the center of the designated segment -arrow-.

  Courtesy of AUDI OF AMERICA, LLC

• LED headlamp (8IT): The headlamp adjusting unit must be aligned to the center of the designated segment -arrow-.

  Courtesy of AUDI OF AMERICA, LLC

• The horizontal cut-off line must touch the cut-off line -1- on the adjusting unit test surface.
  Fig 1: Headlamp Adjustment Graph

  Courtesy of AUDI OF AMERICA, LLC
• The bend point -2- between the left horizontal part and the right rising part of the cut-off line must run vertically through the central mark -3-. The bright core of the light beam must be to the right of the vertical.

• After adjusting the low beam according to the instructions, the center of the high beam light beam must be on the central marking -3-.

LED headlamps (8EX): 

Courtesy of AUDI OF AMERICA, LLC

-- For height adjustment of the headlamp, first adjust the cut-off line under the separating mark using the adjusting screw -2-.

-- Then adjust the cut-off line on the dividing line starting from the bottom.

-- For side adjustment, turn adjusting screw -1-.

-- The adjusting screw -1- for the side adjustment must be secured with a plug after the adjustment is made on USA vehicles. Plugs. Refer to the Parts Information.

The right headlamp layout is a mirror image.

LED headlamps (8IT): 

Courtesy of AUDI OF AMERICA, LLC

-- For height adjustment of the headlamp, first adjust the cut-off line under the separating mark using the adjusting screw -1-.

-- Then adjust the cut-off line on the dividing line starting from the bottom.

-- For side adjustment, turn the adjusting screw -2-.

-- The adjusting screw -2- for the side adjustment must be secured with a plug after the adjustment is made on USA vehicles. Plugs. Refer to the Parts Information.

The right headlamp layout is a mirror image.

Continuation for all: 

-- After successful headlamp adjustment, follow the instructions on the display of the Vehicle Diagnostic Tester.

-- Disconnect the diagnostic connector.