Led Headlamp, Adjusting, Vehicles From My 2017

Special tools and workshop equipment required 

• Headlamp Adjusting Unit: VAS209B 
• Headlamp Adjusting Unit: VAS621001 

Testing and Adjusting Conditions

• Tire pressure is OK.
• The headlamp glass must be clean and dry.
• The headlamp glass must not be damaged.
• Headlamp reflectors and bulbs are OK.
• The vehicle must be under load.

Vehicle load on driver seat in otherwise unloaded vehicle (curb weight).

• One person or 75 kg (165 lbs).

The curb weight is the weight of the operational vehicle with a completely full fuel tank, including the weight of all equipment carried while in operation.

• Fuel tank: at least 90% full.
• Equipment: for example, spare tire, tools, vehicle jack, fire extinguisher, etc.

If the fuel tank is not at least 90% full, the load must be created as follows.

-- Check the fuel tank fill level in the instrument cluster fuel gauge and compare it with the following table. Place additional weight in the luggage compartment, if necessary.

Fuel Gauge	Additional Weight in kg
1/4	38 kg (83.7 lbs
1/2	25 kg (55 lb)
3/4	13 kg (33 lb)
full	0
Example: if the fuel tank is half full, an additional 25 kg (55 lb) must be placed in the luggage compartment.

• Roll the vehicle several meters or move it back and forth several times to set the springs.
• The electro-mechanical parking brake must not be engaged so that the vehicle is not under stress.
• The vehicle and headlamp adjusting unit must be on a level surface.
• The headlamp adjusting unit must be aligned to the vehicle. To do this, slide the headlamp adjusting unit a distance of 100 mm (3.93 in.) centered in front of the vehicle and aligned to the vehicle front. Refer to the Headlamp Adjusting Unit Owner's Manual.

  Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

• Slide the headlamp adjusting unit in front of the corresponding headlamp and check the alignment again.
• LED and Matrix LED headlamp: the headlamp adjusting unit must be aligned at the center of the marked reflector segment -arrow-.
• The angle dimension is set on the headlamp adjusting unit. Refer to the Headlamp Adjusting Unit Operating Instructions.
• The angle dimension -arrow- is stamped for ECE countries on the upper edge of the headlamp -1- in "%".

  Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

• The standard angle dimension for the USA is 0.7%.

Preliminary Work

-- Turn the light switch to "low beam" - not to "Auto".

-- Close all the doors and the rear lid and keep them closed for the duration of the testing/adjusting procedure.

Procedure 

-- Connect the Vehicle Diagnostic Tester.

-- Select the Diagnostic  mode and start the diagnosis.

-- Select the Test plan  tab.

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

• Vehicle functionality
• 55 - Basic setting / 004B - headlamp basic setting

-- Continue to follow the instructions in the Vehicle Diagnostic Tester display.

-- During the program, performing a headlamp adjustment will be prompted. Refer to the Headlamp Adjusting Unit Owner's Manual.

Headlamp Adjustment 

• The horizontal cut-off line must touch the cut-off line -1- on the adjusting unit test surface.
• 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.

-- To determine the bend point -2- more easily, cover and uncover the left half of the headlamp (seen in direction of travel) several 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 be on the central marking -3-.

-- Turn the adjusting screw -3- to adjust laterally.

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- To adjust the height of the headlamp -1-, first set the cut-off line just under the dividing line with the adjustment screw -2-.

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

-- End the "basic setting" after a successful headlamp adjustment. Switch off the ignition and disconnect the diagnostic connector.