Headlights, adjusting

WARNING: This page is about a different car, the 2002 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

Current specifications and procedures for headlight adjustment:

Refer to 01 - MAINTENANCE

Special tools and equipment

Fig 1: Identifying Vehicle Diagnosis, Testing And Information System VAS 5051

Courtesy of VOLKSWAGEN UNITED STATES, INC.

VAS 5051 with VAS 5051/1 and VAS 6017

NOTE: On vehicles with high intensity gas discharge (Xenon) headlights, check DTC memory, erase it and perform basic setting before every manual adjustment via adjustment screws.

Test requirement:

VAS 5051 tester with VAS 6017 K-wire adapter connected and vehicle On Board Diagnostic (OBD) "55 headlight vertical aim control" selected.

Fig 2: Diagnostic System VAS 5051: Display

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Indicated on VAS 5051:

In selection -1-, click on the diagnostic function "04 - Basic setting".

Fig 3: Diagnostic System VAS 5051: Display

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS 5051:

1 - Enter display group

Select function "001" in button field -2- for "display group number 001" and press Q button to confirm input.

Headlights are being moved to set position.

Fig 4: Diagnostic System VAS 5051: Display - Basic Setting, Display Group 1 And Wait

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS 5051:

1 - Basic setting

2 - Display group 1

3 - Headlight Adjusting

Headlights are now in the set position.

NOTE: Basic setting 1 switches the adjustment mode off and enters "headlights not set" into DTC memory.

Fig 5: Identifying Adjustment Screws For Main Headlight (Right)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Adjustment screws at right headlight.

Arrangement at left headlight is mirror image of right headlight.

1 - Adjustment screw for height-/lateral adjustment

2 - Adjustment screw for vertical adjustment

For height adjustment, turn adjustment screws -1- and -2- with the same number of rotations.
Only use adjustment screw -1- for lateral adjustment.

Fig 6: Diagnostic System VAS 5051: Display - Basic Setting, Display Group 1 And Wait

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Display on VAS 5051:

Press s button to change into display group 002.

1 - Basic setting

2 - Display group 2

3 - Adjusted position adapted

The control module has now learned this position as the adjustment position.

NOTE: The entry in DTC memory ("Headlights not set") is erased and adjustment mode is re-initiated.

End function "04 - Basic setting" by pressing ← button.
Select "06 - End Output"