11.4.2 Calibration Preparation Work

Special Tools And Workshop Equipment Required 

• Calibration Unit - VAS6350A-
• Vehicle Diagnostic Tester

Various preparation work procedures must be performed before the actual calibration procedure using the Vehicle Diagnostic Tester.

Requirements: 

• Move the vehicle onto a secure flat surface.
• Apply the parking brake - the vehicle must not move during the measurement.
• Place the front wheels in a straight-ahead position - steering wheel neutral position.
• No persons may be in the vehicle interior during the measurement.
• Do not open and close the vehicle doors during calibration.

Procedure 

• Connect the Vehicle Diagnostic Tester.
• Switch the ignition on.
• Tighten three wheel bolt adapters (17 mm) for the wheel bolts on each Calibration Tool - Wheel Center Mounting - VAS6350/1A-.
• Insert the measuring paddle on both -VAS6350/1A- and secure it with the locking nut.
• Place the Calibration Tool - Wheel Center Mounting - VAS63Calibration Tool - Wheel Center Mounting50/1A- onto the wheel bolts on both rear wheels.
  • The wheel center mounting rotation center must be in the wheel rotation center.
  NOTE: Place the Calibration Tool - Wheel Center Mounting - VAS6350/1A- on the wheels so that the "anti-theft wheel bolts" are not connected with wheel center mounting.
• Adjust the measuring paddles using the lock nuts so that they move freely just above the floor.
  • The measuring paddles must move easily.
  • The measuring paddles must be vertical.
• Position the Calibration Tool - VAS6350A- at distance -a- to the rear wheels.
  • Dimension -a- = 1700 ± 2 mm
• Switch on the Calibration Tool - Spacing Laser - VAS6350/2Awith the ON button.

  Display on the Calibration Tool - Spacing Laser - VAS6350/2A-:

  • "- - - m"
  NOTE: The laser is switched on at same time.
• Hold the Calibration Tool - Spacing Laser - VAS6350/2- -2- flush against the catch bracket, as shown, for the distance measurement.
  • The Calibration Tool - Spacing Laser - VAS6350/2A- must lie firmly against the catch bracket.
• Make sure the "laser beam" for the distance measurement contacts the lower enlarged part of the measuring paddle -1-

  If that is not the case, correct the measuring paddle height using the locking nuts on the Calibration Tool - Wheel Center Mounting - VAS6350/1A-.

• Briefly press the ON button for distance measurement.

  Display on the Calibration Tool - Spacing Laser - VAS6350/2A-:

  • "1, 700 m" (specified value: 1700 ± 2 mm).
    • Repeat the measurement procedure from the left catch bracket to the measuring paddle on left rear wheel.
  • The distance value must be the same on both sides.

    If both measured values are not the same, adjust the Calibration Tool - VAS6350A- accordingly.

    NOTE: The vehicle in the illustration is only a basic outline.
• Secure the Calibration Tool - Lane Change Calibration Tool - VAS6350/4- to the Calibration Unit - VAS6350A- mount on the rear left.
  • When installed correctly, the vehicle electrical system voltage wire must be connected at the bottom left of the calibration device (as seen in direction of travel).
  • Dimension -a- = 606 mm (measured from the upper edge of calibration device to workshop floor).
• The adjustment dimension is set with the test probe -arrow- on the base of the calibration device on the scale of the steel ruler -1-.
  • Left adjustment dimension = 621 mm (read on measuring scale -1-).
• Connect the Calibration Tool - Lane Change Calibration Tool - VAS6350/4- to the vehicle electrical system voltage.
• Using the bubble level (level indicator) -arrow-, bring the Calibration Unit - VAS6350A- into a horizontal position by turning the plastic bases.
• Wear laser protective eyewear.
  NOTE: The vehicle in the illustration is only a basic outline.
• Turn on the Calibration Tool - Linear Laser - VAS6350/3A- on the Calibration Unit - VAS6350A-.
• Align the entire Calibration Unit - VAS6350A- so that the laser beam shines on the center of the vehicle rear above the VW logo.
• Check the distance on the left and right sides between the catch brackets of the Calibration Unit - VAS6350A- and the measuring paddles -1- on wheel mountings again.
  • Specified value: 1700 ± 2 mm

    Lane Change Assistance Control Module, Calibrating. Refer to 11.4.3 Blind Spot Detection Control Module - J1086-/Blind Spot Detection Control Module 2 -J1087-, Calibrating