LED Headlamp, Adjusting

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Checking and Adjusting Conditions

Tire pressure OK
The headlamp lens must be clean and dry.
The headlamp lens may not be damaged.
Headlamp reflectors and bulbs OK.

With Steel Suspension

Vehicle load must be created.

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

One person or 75 kg (165 lb.).

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

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

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

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

Fuel Gauge	Additional Weight In Kg
1/4	57 (126 lb.)
1/2	38 (84 lb.)
3/4	19 (42 lb.)
full	0
Example: If the fuel tank is half full, an additional 38 kg (84 lb.) must be placed in the luggage compartment.

NOTE:

Use fuel containers filled with water as additional weight (a 5 liter (1.3 gal.) fuel container filled with water weighs 5 kg (11 lb.).

With Air Suspension

The compressed air reservoir must be filled. Start the engine and let it run at idle for approximately 2 minutes.

All Vehicles

The headlamp must cool down to room temperature -- open the hood and touch the housing cover on the back of the headlamp.
The electromechanical parking brake must not be engaged so vehicle is not under stress.
Vehicle and headlamp adjusting unit must be on a level surface.
The headlamp adjusting unit must be aligned to the vehicle. Refer to Headlamp adjusting unit operating instructions.

Fig 1: Identifying Headlamp Adjuster Distance
Courtesy of AUDI OF AMERICA, LLC
The headlamp adjuster must be distance -a- 30 to 70 cm (12 to 27.5 in.) in front of the headlamp and should not deviate more than dimension -b- = 3 cm from the LED headlamp center point.
The inclination dimension is set on the headlamp adjusting unit. Refer to Headlamp adjusting unit operating instructions.
The angle dimension -arrow- is stamped on the upper edge of the headlamp -1- in "%".

Fig 2: Locating Angle Dimension Stamp
Courtesy of AUDI OF AMERICA, LLC

NOTE:

The headlamp must be adjusted according to the angle dimension stamped on the headlamp.

The percentage indicator is based on a 10 meter (33 ft.) projection distance. At an angle dimension of 1.0%, for example, converts to 10 cm (4 in.).

Procedure

-- The vehicles must be standing on a flat surface.

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

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

-- To prepare the headlamp adjustment, select "adjust LED headlamp" in "Guided Functions" using the Vehicle Diagnostic Tester.

NOTE:

The headlamps move into the basic setting with this program.

If the vehicle has air suspension, the suspension will move into the air suspension normal level at the same time.

-- Select the function or path:

Vehicle brand
	Vehicle model
		Engine codes
			55 - Dynamic range control J431
				55 Basic setting (repair group 94)

-- Follow the instructions on the Vehicle Diagnosis Tester display.

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

Headlamp Adjustment

The headlamp setting unit must be aligned to the uppermost LED lens -1-.

Fig 3: Aligning To Uppermost LED Lens -1-
Courtesy of AUDI OF AMERICA, LLC
The horizontal light-dark border must touch the dividing line -1- on the adjusting unit test surface.

Fig 4: Headlamp Adjustment Graph
Courtesy of AUDI OF AMERICA, LLC
The point -2- between the left horizontal part and the right vertical part of the light-dark border must run vertically through the central mark -3-. The bright core of the light beam must be to the right of the vertical.

NOTE:

To determine the point -2- more easily, cover and uncover the left half of the headlamp several times. Then check the low beam again.

After correct headlamp adjustment, the center of the high beam light beam must be on the central marking -3-.

-- To adjust the height of the headlamp, set the light-dark border just above the dividing line with the adjustment screw -1-.

Fig 5: Adjusting Height Of Headlamp

Courtesy of AUDI OF AMERICA, LLC

-- Then adjust the light-dark border, starting from the top, on the dividing line.

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

NOTE:

The procedure on the right headlamp is reversed.