6.1 Infrared System, Calibrating

Special tools and workshop equipment required

• Wheel Alignment Computer released by VW/Audi
• Vehicle Diagnostic Tester
• Calibration Tool - Lineal Laser - VAS6350/3A-
• Setting Device - Basic Set - VAS6430/1- or Setting Device - Basic Set - VAS6430/1A-
• Night Vision Calibration Tool - VAS6430/6-

There are two choices for calibrating:

The "complete alignment"

This procedure should be selected for the following activities if a wheel alignment and calibration/adjustment should be performed.

• The rear axle toe was adjusted.
• The vehicle suspension was changed, for example changing from standard to sport suspension.

The "quick access" 

This procedure should be selected for the following activities if only the calibration/adjustment will be performed.

• The test plan in the Vehicle Diagnostic Tester requires a re-calibration.
• The Night Vision System Camera - R212- was removed and installed or replaced.
• The bumper or radiator grille was removed and installed or replaced.

TIP  :

Both procedures are programmed in the wheel alignment computer. The respective procedure is performed automatically. It is only necessary to select the appropriate program for the procedure that will be performed.

If only the night vision system should be calibrated/adjusted, then the "quick access" mode must be selected on the wheel alignment computer.

The procedure in the "quick access" mode is described in the following.

Procedure 

The procedure is described using a John Bean aligner - VAS6331-. 

The procedure will differ if performed with other aligners. In this case, follow the instructions on the aligner screen. 

• Note the test requirements. Refer to Axle Alignment Test Requirements
• Measurement Preparations for Calibrating and Adjusting Driver Assist Systems. Refer to Measurement Preparations for Calibrating/Aligning the Driver Assist Systems, Quick Access Mode
  • Check if the Night Vision System Camera - R212- fits correctly in the bracket and the viewing range for the camera is not blocked.
  • Make sure the protective window on the Night Vision System Camera - R212- is not chipped. Replace it if necessary. Refer to Communication; Rep. Gr. 91; Night Vision System; Night Vision Camera, Removing and Installing.
  • Vehicles with rear axle steering: drive the vehicle "straight" onto the alignment rack. Switch off the ignition when the vehicle has come to a stop.
  • Move the rear axle steering into the zero position using the Vehicle Diagnostic Tester. Refer to Rear Axle Steering Gear
• This is the only way to ensure that the rear axle steering is in the straight-ahead position.
  • Vehicles with air suspension: move to and lock standard vehicle height. Refer to 3.6 Standard Vehicle Height, Initiating and Locking
  • Check the DTC memory for the Night Vision System Camera - R212-. Fix all displayed entries.
  • Position the front wheels so they are straight.
  • Install quick-action clamps on the wheels.
  • Mount the reflectors on the quick-action clamps.
  • Carry out wheel run-out compensation.
• The ACC Setting Device must not be moved on the calibration beam.
  • Select the button for the Night Vision System Camera calibration procedure in the alignment computer.
  • Place the Night Vision Calibration Tool - VAS6430/6-centered on the calibration beam from the Setting Device Basic Set - VAS6430/1A-.
  • The opening -arrows- must surround the nut and bolt -A- when the -VAS6430/6- is pushed onto the calibration beam.

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  • Fold up the right and left bracket -A-.
  • Tighten the right and left clamping screw -1- hand-tight.

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  • Place the -VAS6430/1A- with the -VAS6430/6- in front of the vehicle.
  • Position the -VAS6430/6- in distance -A- to the night vision camera.
• Distance -A- = 120 cm ± 2.5 cm, measured between the - VAS6430/6- and the lens on the Night Vision System Camera - R212-.
  • Attach the measuring sensor for the front wheels to the calibration beam.

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• For the following work steps, the hoist must be in the lowest position -A-.

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  • Place the -VAS6350/3A- -arrow- in the guide of the - VAS6430/6- and tighten.
  • Switch on the -VAS6350/3-.

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  • Turn the lever on the back of the calibration board to align the laser beam so that it is in the center of the camera lens in the horizontal position.

TIP  :

The specified height is now reached and the -VAS6350/3A- can be switched off.

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• Level the bubble level -A- using the adjusting screw -1-.

TIP  :

The bubble level adjustment -A- serves to balance the ground conditions.

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• Slide the -VAS6430- to the side in direction of -arrows B-, until the display in the wheel alignment computer is in the tolerance range.

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• Gently turn the screws -2 and 3- to secure the -VAS6430- from rolling away.

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• Turn the precision adjustment screw -1- on the calibration beam until the display on the alignment computer is located within the tolerance range.

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• Level the bubble level -A- using the adjusting screw -1-.
• Balance the bubble level -B- using the adjusting screw -2-.

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• Turn the -VAS6350/3- back on and check the specified height and correct if necessary.
• Turn the lever on the back of the calibration board to align the laser beam so that it is in the center of the camera lens in the horizontal position.

TIP  :

The specified height is now reached and the -VAS6350/3A- can be switched off.

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• Connect the connector -A- for the -VAS6430/6- to the power supply.
• Turn on the switch -B- for the -VAS6430/6-.
  • After switching on the -VAS6430/6- an inner initialization takes place. Both LEDs -C- blink at the same time and an acoustic tone will sound if the initialization is successful and was performed without any faults. Then the -VAS6430/6- is in the ready mode. The green LED will blink slowly.
  • Check the bubble level and correct the adjustment if necessary.

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• Push the button -A- to activate the heating function.

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  • An acoustic signal will sound when the heating function is activated. The heat-up phase has begun.
  • As soon as the specified temperature is reached, the green LED will stay on.
  • The heating elements switch off automatically after 20 minutes. An acoustic signal will sound approximately 1 minute before the heating elements switch off automatically.
  • Press the button -A- at any time to reset the timer back to 20 minutes. An short acoustic signal confirms that it has be reset.
• Connect the Vehicle Diagnostic Tester.
• Switch the ignition on.
• 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:
  • Diagnostic-Capable Systems
  • 0084 - Night Vision System Control Module
  • 0084 - Night Vision System Control Module Functions
  • 0084 - Calibrate control module
• Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.