Lane Assist, Calibrating
Special Tools And Workshop Equipment Required
- Use the Vehicle Diagnostic Tester.
- Setting Device Basic Set:VAS6430/1
- Wheel Alignment Computer
The Camera Control Module -J852- must fit correctly in the bracket.
The camera viewing range must be clean and unobstructed.
Before driving the vehicle onto the vehicle alignment platform, make sure there is sufficient space between the center of the wheel hub on the front wheels and the Setting Device Basic Set:VAS6430/1 .
The distance between the Setting Device Basic Set:VAS6430/1 and the center of the wheel hub on the front wheels must be 1,500 mm ± 25 mm.
If there not enough space, back the vehicle onto the vehicle alignment platform so that there will be enough space.
Check the DTC memory and correct any malfunctions before beginning the calibration.
-- Follow the test requirements for an axle alignment. Refer to TEST REQUIREMENTS .
Vehicles with Air Suspension
-- Set the standard vehicle height and activate the vehicle lift mode. Refer to VEHICLE LIFT MODE .
Continuation for All Vehicles
-- Drive the vehicle onto the vehicle alignment platform.
-- Connect the battery charger. Refer to BATTERY .
-- Connect the Vehicle Diagnostic Tester to the vehicle. (Guide the diagnostic cable through the open window.)
During the calibration procedure, make sure all the vehicle doors remain closed and the vehicle exterior lighting is switched off.
-- Position the front wheels so they are straight.
-- Select the lane assist calibration procedure in the alignment computer.
-- Install the quick clamps on all four wheels.
-- Mount the measuring sensors on the wheels.
-- Perform a rim run-out compensation on the rear wheels.
-- Bounce the vehicle.
-- Measure and record the ride height at all four wheels.
The Setting Device Basic Set:VAS6430/1 must not be moved on the calibration beam.
The alignment stand must be in the lowest level position for the next step.
-- Align the Setting Device Basic Set:VAS6430/1 so that it is at a right angle to the vehicle longitudinal axis.
-- Rotate the Setting Device Basic Set:VAS6430/1 upward just enough so that the calibration beam is parallel to the center of the measuring sensors on the front wheels, so that it is possible to correctly measure the distance measuring unit -1- .
- Distance measuring unit with spring tape measure and mounting pin
-- Position the Setting Device Basic Set:VAS6430/1 at a distance -a- of 1500 mm ± 25 mm from the center of the wheel hub on the front wheels to the beam on the Setting Device Basic Set:VAS6430/1 .
- Distance -a- 1,500 mm ± 25 mm must be measured on both side of the vehicle and then the Setting Device Basic Set:VAS6430/1 must be aligned.
- Distance -a- must be the same on both sides of the vehicle.
- To assure a correct calibration, the Setting Device Basic Set:VAS6430/1 must be at a right angle to the vehicle longitudinal axis.
-- Mount the front wheel measuring sensors -1- to the Setting Device Basic Set:VAS6430/1 .
-- Determine the height value -a- between the Setting Device Basic Set:VAS6430/1 contact patch and the wheel contact surface on the vehicle alignment platform and enter it in the alignment computer.
-- Loosen the clamping bolt -arrow- and place the measuring bar -1- on the floor.
-- Turn the crank -1- to adjust the Calibration Board For Lane Guard System:VAS6430/4 to the height specification -2- and then make a note of it.
If the Specified Height was Reached, Then the Measuring Bar -1- Must Be Pushed Slightly Forward and Secured with the Locking Bolt -arrow- .
-- Level the bubble level -A- using the adjusting screw -1- .
-- Slide the Setting Device Basic Set:VAS6430/1 to the side in direction of -arrows B- , until the display in the wheel alignment computer is in the tolerance range.
-- By gently turning the adjustment screws -2 and 3- secure the Setting Device Basic Set:VAS6430/1 from rolling away.
-- Turn the precision adjustment screw -1- until the display on the wheel alignment computer is located within the tolerance range.
-- Level the bubble level -A- using the adjusting screw -1- .
-- Level the bubble level -B- using the adjusting screws -2 and 3- .
-- Loosen the clamping bolt -arrow- and place the measuring bar -1- on the floor.
-- Check specified height -2- one more time and correct if necessary.
If the Specified Height was Reached, Then the Measuring Bar -1- Must Be Pushed Slightly Forward and Secured with the Locking Bolt -arrow- .
Subsequent Procedures are Performed Using the Vehicle Diagnostic Tester.
-- Switch the ignition on.
-- On the Vehicle Diagnostic Tester select "guided fault finding" , see Vehicle Diagnostic Tester.
Body (Repair Groups 01, 27 and 50 through 97)
Electrical System (Repair Groups 01, 27 and 90 through 97)
01_OBD-capable systems
85_Camera control module- J852
85_Camera control module- J852, functions
J852 - Calibration (repair group 44)
Follow the instructions on the screen to perform the calibration.
Next, in guided fault finding, determine the height of the body.
-- Enter the recorded ride heights.