Lane Assist, Calibrating
Lane Assist, Calibrating
Special tools, testers and auxiliary items required
• Vehicle Diagnosis, Testing and Information System (VAS 5051 B)
• Setting device (VAS 6430)
• Wheel alignment computer
• The lane assist control module (J759) must fit correctly in the retainer.
• 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 adjustment device (VAS 6430)
• The distance between the adjustment device and the center of the wheel hub on the front wheels must be 1,500 mm ± 25 mm.
• If there not enough space, then 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 prerequisites for alignment. Refer to => [ Wheel Alignment Test Prerequisites ] Wheel Alignment Test Prerequisites.
- Drive the vehicle onto the vehicle alignment platform.
- Connect the battery charger.
• On vehicles where the battery is located in the engine compartment, close the engine hood just enough so that the cable from the battery charger does not get clamped.
- Connect the (VAS 5051 B) 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.
• The (VAS 6430) must not be moved on the calibration beam.
• The alignment stand must be in the lowest level position for the next step.
- Align the (VAS 6430) so that it is at a right angle to the vehicle longitudinal axis.
- Rotate the (VAS 6430) 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 -.
1. Distance measuring unit with spring tape measure and mounting pin
- Position the (VAS 6430) 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 (VAS 6430).
CAUTION!
• Distance - a - 1,500 mm ± 25 mm must be measured on both side of the vehicle and then the (VAS 6430) must be aligned.
• Distance - a - must be the same on both sides of the vehicle.
• To assure a correct calibration, the (VAS 6430) must be at a right angle to the vehicle longitudinal axis.
- Mount the front wheel measuring sensors - 1 - to the (VAS 6430).
- Determine the height value - a - between the (VAS 6430) 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.
- Adjust and then note the Calibration Board for Lane Guard System (VAS 6430/4) using the crank - 1 - to the specified height- 2 - according to the alignment computer.
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 (VAS 6430) to the side- 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 (VAS 6430) from rolling away.
- Turn the precision adjustment screw - 1 - until the display on the 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 diagnosis, testing and information system (VAS 5051B).
- Switch on ignition.
- On the (VAS 5051) select Guided Fault Finding.
Body
body Assembly Work
01 On Board Diagnostic (OBD) Capable Systems
Lane Assist
Functions
Calibration
Follow the instructions on the screen to perform the calibration.
• Next, in guided fault finding, determine the height of the body.
- Determine the body height - a - at all four wheels between the wheel contact surface and the lower edge of the fender.
