Lane Change Assistance, Calibrating, Stationary Calibration

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Calibration/adjustment must be performed if:

"No or incorrect basic setting/adaptation" is actively entered in the DTC memory of the Lane Change Assistance Control Module -J769- / Lane Change Assistance Control Module 2 -J770-.
The Lane Change Assistance Control Module -J769- and/or Lane Change Assistance Control Module 2 -J770- has/have been removed and installed or replaced.
The rear bumper was removed and installed.
The rear bumper cover has been damaged or replaced.
The rear bumper cover was painted near the control modules while installed.

TIP:

When a software update should be made, this must be performed before the calibration.

Special tools and workshop equipment required

Calibration Tool:VAS6350A

Fig 1: Calibration Tool
Courtesy of AUDI
Calibration Tool - Spacing Laser:VAS6350/2A
Calibration Tool - Lane Change Calibration Tool:VAS6350/4
Calibration Tool - R8 Wheel Adapters:VAS6350/5
Vehicle Diagnostic Tester

Preparing for Calibration

Courtesy of AUDI

Calibration Tool - Spacing Laser:VAS6350/2A
- For distance measurement
- Refer to the Calibration Tool - Spacing LaserVAS6350/2A Operating Instructions for handling.
Calibration Tool :VAS6350A
Level
- On the Calibration Tool :VAS6350A
- To check the horizontal position of the Calibration Tool :VAS6350A
Catch Bracket
- To mount the Spacing Laser:VAS6350/2A for the distance measurement
- Distance to the Calibration Tool - Wheel Center Mountings:VAS6350/1A on the rear wheels: dimension -a- = 1700 ± 10 mm (66.93 ± 0.39 in.)
Calibration Tool - Lane Change Calibration Tool:VAS6350/4
- Is moved from one side of the measuring field to the other during calibration
- When installed correctly, the vehicle electrical system voltage line must be connected at lower left of the calibration device (as seen in direction of travel)
Emblem
- The linear laser is aligned to the center of the emblem
Calibration Tool - Wheel Center Mounting:VAS6350/1A
- With wheel bolt adapter and measuring paddle
Measuring Scale
- For positioning the Calibration Tool - Lane Change Calibration Tool:VAS6350/4
Calibration Tool - Linear Laser:VAS6350/3A
- With "laser protective eyewear"
- On the Calibration Tool :VAS6350A
- Refer to Calibration Tool - Line LaserVAS6350/3A Service Information for handling.
Plastic Foot
- Quantity: 3
- Adjustable for adjusting the horizontal position of the Calibration Tool :VAS6350A

Preliminary Work

Move the vehicle onto a solid, flat surface.
Move the wheels so that they are straight.
For vehicles with rear axle steering, steer the rear axle to the zero position. Refer to Rear Axle Steering . This is the only way to ensure that the rear axle steering is in the straight-ahead position.
Vehicles without air suspension: deflect the springs several times and let settle.
Electromechanical parking brake applied.
The vehicle exterior lamps are off.
All the vehicle doors are closed.
Remove the label with the metal foil from the bumper cover, if necessary.
Connect the battery charger for the battery support mode. Refer to BATTERY, CHARGING .
Before starting the calibration/adjustment, check the DTC memory and correct all displayed entries.

Procedure

-- Check which hole circle the rims have.

-- On every Wheel Center Mounting:VAS6350/1A , attach three fitting wheel bolt adapters for the wheel bolts using the Supplementary Set Audi R8:VAS6350/5 .

-- Insert the measuring paddle at both Calibration Tool - Wheel Center Mounting:VAS6350/1A and secure with the locking nut.

-- Place the Calibration Tool - Wheel Center Mountings:VAS6350/1A onto the wheel bolts on both rear wheels.

The wheel center mounting rotation center must be in the wheel rotation center.

-- Place the Calibration Tool - Wheel Center Mounting:VAS6350/1A on the wheels so that any anti-theft wheel bolts are not connected to the wheel center mounting.

-- Adjust the measuring paddle using the locking 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.

Fig 2: Positioning Calibration Device VAS 6350

Courtesy of AUDI

Dimension -a- = 1, 700 ± 10 mm (66.93 ± 0.39 in.)

-- Using the bubble level (level indicator) -arrow-, bring the Calibration Tool :VAS6350A into a horizontal position by turning the plastic bases.

Courtesy of AUDI

-- Wear "laser protective eyewear".

Courtesy of AUDI

-- Turn on the Calibration Tool - Linear Laser:VAS6350/3A on the Calibration Tool: VAS6350A .

-- Align the Calibration Tool :VAS6350A so that the Calibration Tool - Linear Laser:VAS6350/3A strikes the center of the emblem on the rear lid.

-- Turn on the Calibration Tool - Spacing Laser:VAS6350/2A . Refer to Calibration Tool - Spacing LaserVAS6350/2A Operating Instructions.

The following display appears 1 :

Fig 3: The Following Display Appears -1- :

Courtesy of AUDI

The display -2- shows how to position the Calibration Tool - Spacing Laser:VAS6350/2A .

Courtesy of AUDI

-Arrow 1- : position with front edge
-Arrow 3- : position with rear edge

-- Press the corresponding button.

-- Hold the Spacing Laser:VAS6350/2A -2- for the distance measurement on one side of the calibration board flush to the catch bracket, as shown.

Courtesy of AUDI

The Calibration Tool - Spacing Laser:VAS6350/2A -2- must lie firmly against the catch bracket.

-- Push the measurement button briefly.

The laser switches on.

-- 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 -1- height using the clamping screw on the Calibration Tool - Wheel Center Mounting:VAS6350/1A .

-- Use one hand to hold the Calibration Tool - Spacing Laser :VAS6350/2A firmly in the catch bracket on the Calibration Tool :VAS6350A ; the laser beam should be seen on the measuring paddle during this.

-- Then press the measurement button for the distance measurement briefly.

Courtesy of AUDI

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

"1, 700 m" (specified value: 1700 ± 10 mm (66.93 ± 0.39 in.)).

-- Repeat this measurement on the other side of the Calibration Tool :VAS6350A in the same way for the rear wheel.

The distance value must be the same on both sides.

-- If both measured values are not the same, then readjust the Calibration Tool: VAS6350A correspondingly until the distance values are the same on both sides.

-- Make sure the Calibration Tool - Line Laser:VAS6350/3A strikes the center above the emblem and that the level indicator remains centered. Adjust if necessary.

Calibration Procedure

The following should not occur during the calibration procedure:

No metallic reflectors may be located within a 2 m (6.56 feet) radius of the calibration tool (meaning tool carts, metal cabinets).
Vehicle doors must not be opened or closed.
People must not sit in the vehicle.
People must not go between the vehicle and the Calibration Tool - Lane Change Calibration Tool -VAS6350/4-.

-- Connect the Vehicle Diagnostic Tester. Refer to the appropriate Service Information.

-- 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:

Vehicles Before Product Improvement

Body
Electrical system
01 - OBD-capable systems
3C - Lane Change Assistance Control Module - J769
3C - Lane change assistance control module, functions
3C - Calibration

Vehicles from Product Improvement

Body
Electrical system
01 - OBD-capable systems
003C - Lane Change Assistance Control Module - J769
003C - Lane change assistance control module, functions
003C - Calibration

Continuation for All Vehicles

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.

TIP:

The following information clarifies which version of the lane change assist is installed.

This information for adjusting the calibration device is important for later steps in the procedure to avoid malfunctions.

-- Secure the Calibration Unit for Lane Change Assist:VAS6350/4 to the left rear side on the mount of the Calibration Tool:VAS6350A

Courtesy of AUDI

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- is measured from the upper edge of the calibration device to the floor.

Model	Q7 Basis, Before Product Improvement	SQ7/Q7 S line, Before Product Improvement	Q7 from product improvement
Adjustment dimension height in mm dimension -a-	681 (26.81 in.)	675 (26.57 in.)	700 (27.56 in.)

-- The indicator on the base of the Calibration Tool - Lane Change Calibration Tool:VAS6350/4 must align with the adjustment dimension on the measuring scale -1- on the measuring field -arrow-.

Model	Q7 Basis, Before Product Improvement	SQ7/Q7 S line, Before Product Improvement	Q7 from product improvement
Left adjustment dimension read in mm on the measuring scale -1-	800 (31.50 in.)	817 (32.17 in.)	860 (33.86 in.)

-- Connect the Calibration Tool - Lane Change Calibration Tool:VAS6350/4 -1- to the vehicle electrical system voltage and switch it on at the voltage switch -2-.

Courtesy of AUDI

The green LED -4- must turn on.

-- If the red LED -3- turns on, then check the Calibration Unit for Lane Change Assist:VAS6350/4 -1-.

-- Follow the instructions in the vehicle diagnostic tester display.

During the program sequence, there is a prompt to switch the Calibration Tool - Lane Change Calibration Tool:VAS6350/4 from the left to the right side of the Calibration Tool : VAS6350A

-- Turn off the Calibration Tool - Lane Change Calibration Tool:VAS6350/4 and reposition the calibration tool.

Courtesy of AUDI

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- is measured from the upper edge of the calibration device to the floor.

Model	Q7 Basis, Before Product Improvement	SQ7/Q7 S line, Before Product Improvement	Q7 from product improvement
Adjustment dimension height in mm dimension -a-	681 (26.81 in.)	675 (26.57 in.)	700 (27.56 in.)

-- The indicator on the base of the Calibration Tool - Lane Change Calibration Tool:VAS6350/4 must align with the adjustment dimension on the measuring scale -1- on the measuring field -arrow-.

Model	Q7 Basis, Before Product Improvement	SQ7/Q7 S line, Before Product Improvement	Q7 from product improvement
Right adjustment dimension read in mm on the measuring scale -1-	800 (31.50 in.)	817 (32.17 in.)	860 (33.86 in.)

-- Connect the Calibration Tool - Lane Change Calibration Tool:VAS6350/4 -1- to the vehicle electrical system voltage and switch it on at the voltage switch -2-.

Courtesy of AUDI

The green LED -4- must turn on.

-- Follow the instructions in the vehicle diagnostic tester display.

-- Switch off the ignition after successful calibration.

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

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