ACC, CALIBRATING, CALIBRATION PROCEDURE WITH Setting Device Basic Set VAS6430/1

Special tools and workshop equipment required 

• Vehicle Diagnostic Tester
• Setting Device Basic Set VAS6430/1
• ACC Adjuster VAS6190/2
• Wheel Alignment Computer

• Before beginning the adjustment, check the DTC memory and correct any malfunctions present.

The calibration procedure is described here using the Setting Device Basic Set VAS6430/1. However the ADC Adjustment Fixture VAS6041 and the ADC Reflector Mirror VAS6041/1 can also be used.

Calibration procedure without a previous axle alignment 

-- Connect the battery charger. Refer to Refer to BATTERY, CHARGING ..

-- Select the ACC calibration button on the alignment computer.

-- Mount the quick clamps to the rear wheels.

-- Mount the measurement sensor to the rear wheels.

-- Perform a wheel run-out compensation and the rear wheels.

Calibration procedure with or without a previous axle alignment 

-- Remove the right front air intake grille. Refer to OVERVIEW - BUMPER COVER .

RS Models: 

-- Remove the front bumper cover. Refer to BUMPER COVER, REMOVING AND INSTALLING .

-- Remove the air guide to the coolant auxiliary cooler. .

All Models: 

-- Remove all dirt on the sensor lens.

-- Position Setting Device Basic Set VAS6430/1 at a distance -A- of 120 cm ± 5 cm from sensor lens to mirror surface.

Fig 1: Align By Sliding It Sideways VAS 6190 So That The Laser Beam Is Horizontally Centered

Courtesy of AUDI OF AMERICA, LLC

Fig 2: Identifying VAS 6190 Loaded With Weight -Arrow-

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-- Load the ACC Setting Device VAS6190 with the weight -arrow- as shown in the illustration.

-- Mount the front wheel measuring sensors -1- onto the Setting Device Basic Set VAS6430/1.

Fig 3: Identifying Measurement Sensor -1-, Bubble Level -2- And Laser Beam Calibration Mirror -3-

Courtesy of AUDI OF AMERICA, LLC

-- In area -A-, bring item -2- on rotary knob into alignment with marking on mirror (number 2 on rotary knob must face toward vehicle).

-- Now align the Setting Device Basic Set VAS6430/1 by sliding it sideways -arrows B- so that the laser beam is horizontally centered on the senor lens.

Fig 4: Align By Sliding It Sideways VAS 6190 So That The Laser Beam Is Horizontally Centered

Courtesy of AUDI OF AMERICA, LLC

-- Bring the bubble levels -2- on the Setting Device Basic Set VAS6430/1 into balance using adjustment screws -1-.

Fig 5: Identifying Balance Using Adjustment Screws -1-, Bubble Levels -2-, Fine Adjustment Screw -3- And Vertical Slits -4-

Courtesy of AUDI OF AMERICA, LLC

-- Adjust vertical slits -4- on Setting Device Basic Set VAS6430/1 so that laser beam is centered vertically on sensor lens.

-- Adjust the same front axle individual toe settings using fine adjustment screw -3-.

-- The difference between individual toe values must be less than 6' or they must be the same.

-- Bring bubbles -2- on measurement sensor -1- into balance.

Fig 6: Identifying Measurement Sensor -1-, Bubble Level -2- And Laser Beam Calibration Mirror -3-

Courtesy of AUDI OF AMERICA, LLC

-- Now using the laser beam -3- on the Setting Device Basic Set VAS6430/1, check if the laser beam contacts the sensor lens.

-- Connect the Vehicle Diagnostic Tester.

The Vehicle Diagnostic Tester is ready for operation when the operating modes are displayed.

-- Turn on the ignition.

-- Touch Guided Fault Finding  .

-- Select in succession:

• Brand
• Type
• Model year
• Version
• Engine Code

-- Confirm data entered.

Wait until the Vehicle Diagnostic Tester has checked all the vehicle control module.

-- Press the Go to  button and select "Function/component selection".

-- Select the corresponding program in "Guided Functions  ".

Now follow instructions on screen to perform adjustment.

-- Turn the ACC Adjuster VAS6190/2 in direction of arrow -A or B- and use the upper screw -2- and the lower screw -1- for precision adjustment in "Guided Fault Finding  ".

Fig 7: Turning VAS 6190/2 In And Using Upper Screw And Lower Screw For Precision Adjustment

Courtesy of AUDI OF AMERICA, LLC

-- Switch ignition off.

-- Disconnect the Vehicle Diagnostic Tester from the diagnostic connector.

-- Disconnect the battery charger. Refer to BATTERY, CHARGING .

RS Models: 

-- Install the air guide to the coolant auxiliary cooler. .

-- Install the front bumper cover. Refer to BUMPER COVER, REMOVING AND INSTALLING .

All Models: 

-- Install the air intake grille. Refer to OVERVIEW - BUMPER COVER .

Special tools and workshop equipment required 

• Setting Device Basic Set VAS6430/1
• ACC Adjuster VAS6190/2
• Vehicle Diagnostic Tester
• Wheel Alignment Computer

• Before beginning the adjustment, check the DTC memory and correct any malfunctions present.

The adjustment procedure is described here using the Setting Device Basic Set VAS6430/1.

Calibration procedure without a previous axle alignment 

-- Connect the battery charger. Refer to BATTERY, CHARGING .

-- Select the ACC calibration button on the alignment computer.

-- Mount the quick clamps to the rear wheels.

-- Mount the measurement sensor to the rear wheels.

-- Perform a wheel run-out compensation and the rear wheels.

Calibration procedure with or without a previous axle alignment 

-- Remove the right front air intake grille. Refer to OVERVIEW - BUMPER COVER .

RS Models: 

-- Remove the front bumper cover. Refer to BUMPER COVER, REMOVING AND INSTALLING .

-- Remove the air guide to the coolant auxiliary cooler. .

All Models: 

-- Remove all dirt on the sensor lens.

-- If necessary, remove the mirror installed at the center and install it all the way at the right near the vertical slits.

Fig 1: Identifying Front Wheel Measuring Sensors

Courtesy of AUDI OF AMERICA, LLC

-- Position Setting Device Basic Set VAS6430/1 at a distance -A- of 120 cm ± 5 cm from sensor lens to mirror surface.

Fig 2: Identifying Special Tool VAS 6430/3

Courtesy of AUDI OF AMERICA, LLC

-- Mount the front wheel measuring sensors -1- onto the Setting Device Basic Set VAS6430/1.

Fig 3: Identifying Front Wheel Measuring Sensors

Courtesy of AUDI OF AMERICA, LLC

-- In area -A-, bring item -2- on rotary knob into alignment with marking on mirror (number 2 on rotary knob must face toward vehicle).

Fig 4: Identifying Special Tool VAS 6430/3 Setup

Courtesy of AUDI OF AMERICA, LLC

-- Now align the Setting Device Basic Set VAS6430/1 by sliding it sideways -arrows B- so that the laser beam is horizontally centered on the senor lens.

Fig 5: Identifying Special Tool VAS 6430/3

Courtesy of AUDI OF AMERICA, LLC

-- Level the bubble levels -A- and -B- on the Setting Device Basic Set VAS6430/1 using the adjusting screws -1-, -2- and -3-.

Fig 6: Adjusting Special Tool VAS 6430/3 Mirror

Courtesy of AUDI OF AMERICA, LLC

-- Adjust the mirror -4- using the crank -arrow- on the Setting Device Basic Set VAS6430/1 so the laser beam is vertically centered on the sensor lens.

Fig 7: Adjusting Special Tool VAS 6430/3 Mirror

Courtesy of AUDI OF AMERICA, LLC

-- Adjust the same front axle individual toe settings using fine adjustment screw -5-.

-- The difference between individual toe values must be less than 6' or they must be the same.

-- Bring bubbles -2- on measurement sensor -1- into balance.

Fig 8: Identifying Special Tool VAS 6430/3 Setup

Courtesy of AUDI OF AMERICA, LLC

-- Now using the laser beam -3- on the Setting Device Basic Set VAS6430/1, check if the laser beam contacts the sensor lens.

-- Connect the Vehicle Diagnostic Tester

The Vehicle Diagnostic Tester is ready for operation when the operating modes are displayed.

-- Turn on the ignition.

-- Touch Guided Fault Finding  .

-- Select in succession:

• Brand
• Type
• Model year
• Version
• Engine Code

-- Confirm data entered.

Wait until the Vehicle Diagnostic Tester has checked all the vehicle control module.

-- Press the Go to  button and select "function/component selection".

-- Select the corresponding program in "Guided Functions  ".

Now follow instructions on screen to perform adjustment.

-- Turn the ACC Adjuster VAS6190/2 in direction of -arrow A or B- and use the upper screw -2- and the lower screw -1- for precision adjustment in "Guided Fault Finding  ".

Fig 9: Turning VAS 6190/2 In And Using Upper Screw And Lower Screw For Precision Adjustment

Courtesy of AUDI OF AMERICA, LLC

-- Switch ignition off.

-- Disconnect the Vehicle Diagnostic Tester from the diagnostic connector.

-- Disconnect the battery charger. battery charger. Refer to BATTERY, CHARGING .

RS Models: 

-- Install the air guide to the coolant auxiliary cooler. .

-- Install the front bumper cover. Refer to BUMPER COVER, REMOVING AND INSTALLING .

All Models: 

-- Install the air intake grille. Refer to OVERVIEW - BUMPER COVER .