Lane Change Assistance Control Module -J769- / -J770-, Calibrating

Special tools and workshop equipment required

Calibration Device VAS 6350

Conditions

-- The lane change assistance control module -J769- / -J770- must be calibrated using the Vehicle Diagnostic Tester in Guided Fault Finding under one of the following conditions:

The lane change assistance control module -J769- or lane change assistance control module 2 -J770- was replaced.
The rear bumper was damaged.
The rear bumper was removed and installed.
The DTC no or incorrect basic setting/adaptation is stored in the DTC memory.

Procedure

-- Move the vehicle onto a solid, flat surface.

-- Set the parking brake - the vehicle must not move during the measuring.

-- Place the front wheels in a straight-ahead position - steering wheel in 0 position.

-- Connect the Vehicle Diagnostic Tester.

NOTE:

If a malfunction message appears in the display, refer to the Vehicle Diagnostic Tester Operating Instructions.

-- Switch ignition on.

-- Remove the label with the metal foil from the bumper cover, if necessary.

-- Secure three wheel bolt adapters for the wheel bolts to each Wheel Center Sensor -VAS 6350/1-.

Fig 1: Identifying Wheel Pick-Ups On Wheel Mounting Bolts At Rear Wheels

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-- Insert the measuring paddle on each Wheel Center Sensor -VAS 6350/1- and secure it with the locking nut.

-- Place the Wheel Center Sensor -VAS 6350/1- on the wheel bolt on both rear wheels.

Wheel center sensor rotation center must be in wheel rotation center.

NOTE:

Place Wheel Center Sensor -VAS 6350/1- on wheels so that anti-theft wheel bolts are not connected with wheel center sensor.

-- Adjust measuring paddle with aid of 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 ToolVAS 6350 at distance -a- to the rear wheels.

Fig 2: Determining Distance Between Calibration Device VAS 6350 And Rear Wheels

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Dimension -a- = 1700 mm (67 in.).

-- Turn on the Spacing Laser -VAS 6350/2- with the ON button.

Fig 3: Identifying Laser Display

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Display on Spacing Laser -VAS 6350/2- :

- - - m

NOTE:

Laser is switched on at same time.

-- For distance measurement, hold the Spacing Laser -VAS 6350/2- -2- flush to the right stop bracket as illustrated.

Fig 4: Ensuring Laser Beam From Distance Laser VAS 6350/2 Hits Lower, Enlarged Part Of Paddle

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The Spacing Laser -VAS 6350/2- lie firmly against catch bracket.

-- Make sure the laser beam for the distance measurement contacts the paddle on lower enlarged part -1-.

If this is not the case, measure paddle height must be corrected using lock nuts on Wheel Center Sensor -VAS 6350/1-.

-- Briefly press ON button for distance measurement.

Fig 5: Identifying Display On VAS 6350/2

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Display on Spacing Laser -VAS 6350/2- :

1, 700 m (specified value: 1, 700 (67 in.) +/- 2 mm).

-- Repeat the measuring procedure from the left catch bracket to the left rear wheel.

The distance value must be the same on both sides.

If both measured values are not the same, adjust Calibration ToolVAS 6350 accordingly.

-- Select the path calibration after selecting lane change assistance.

NOTE:

The following information clarifies which version of the lane change assist is installed (version SWA1.7).

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

-- Attach the right rear calibration tool for lane changing assist Calibration Tool For Lane Change Assist -VAS 6350/4- to the mount on the Calibration ToolVAS 6350.

Fig 6: Secure the -VAS 6350/4- at the rear right of the VAS 6350 mount

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When installed correctly, vehicle electrical system voltage line must be connected at bottom left of calibration device (as seen in direction of travel).

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

Adjustment height in mm	Sedan	Avant/RS 6	allroad
	810	810	800

-- The indicator on the base of the lane change assistance calibration device Calibration Tool For Lane Change Assist -VAS 6350/4- must align with setting on measurement scale -1- on measuring field -arrow-.

Right adjustment dimension in mm	Sedan	Avant/RS 6	allroad
SWA 1.7	790	790	790
Read on the measuring scale -1-.

-- Connect the calibration tool for lane changing assist Calibration Tool For Lane Change Assist -VAS 6350/4- to the vehicle electrical system voltage.

-- Bring Calibration ToolVAS 6350 into horizontal position by turning plastic base.

Fig 7: Identifying Bubble Level (Sight Glass) On Calibration Tool VAS 6350

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Observe bubble level (sight glass) on Calibration ToolVAS 6350 -arrow-.

-- Turn on the -VAS 6350/3- on the VAS 6350.

Fig 8: Turning -VAS 6350/3- On VAS 6350 On

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-- Wear laser protective eyewear.

-- Align the Calibration ToolVAS 6350 so the -VAS 6350/3- strikes the center of the brand emblem on the rear lid.

-- Check left and right distance between catch bracket on Calibration ToolVAS 6350 and measuring paddle -1- on wheel sensors again.

Fig 9: Holding Distance Laser VAS 6350/2 Flush To Catch Bracket

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Specified value: 1, 700 (67 in.) ± 2 mm

Calibration procedure

The following should not occur during the calibration procedure:

No metal reflectors may be located within a 2 m (6.5 ft.) radius of the calibration device (such as tool carts, metal cabinets).
Vehicle doors must not be opened or closed.
People should not sit in the vehicle.
People should not go between the vehicle and the lane change assistance calibration device Calibration Tool For Lane Change Assist -VAS 6350/4-.

Procedure

Fig 10: Identifying Assistance Calibration Device VAS 6350/4 Components

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-- Turn on the calibration tool for lane changing assist Calibration Tool For Lane Change Assist -VAS 6350/4- on the voltage switch -3-.

The green LED -1- must light up.

NOTE:

If the red LED -2- lights up: Check lane change assistance calibration device Calibration Tool For Lane Change Assist -VAS 6350/4-.

-- Follow the instructions in the Vehicle Diagnostic Tester display.

During the course of the program, a request is made to switch the lane change assistance calibration device Calibration Tool For Lane Change Assist -VAS 6350/4- from the right to the left side of the Calibration ToolVAS 6350.

Fig 11: During Course Of Program, A Request Is Made To Switch -VAS 6350/4- From Right To Left Side Of VAS 6350

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-- Turn off the calibration tool for lane changing assist Calibration Tool For Lane Change Assist -VAS 6350/4- and remove the calibration tool.

When installed correctly, vehicle electrical system voltage line must be connected at bottom left of calibration device (as seen in direction of travel).

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

Adjustment height in mm	Sedan	Avant/RS 6	allroad
	810	810	800

Left adjustment dimension in mm	Sedan	Avant/RS 6	allroad
SWA 1.7	790	790	790
Read on the measuring scale -1-.

-- Turn on the calibration tool for lane changing assist Calibration Tool For Lane Change Assist -VAS 6350/4- on the voltage switch -3-.

Fig 12: Identifying Assistance Calibration Device VAS 6350/4 Components

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The green LED -1- must light up.

-- Follow the instructions in the Vehicle Diagnostic Tester display.

-- After calibrating the lane change assistance successfully, end calibration, switch off the ignition and disconnect the diagnostic connector.