Adjustment Procedure Using ACC Setting Device VAS 6190

Adjustment Procedure Using ACC Setting Device VAS 6190

Special tools, testers and auxiliary items required

• Vehicle diagnosis, testing and information system (VAS 5051 A)

• Diagnostic Cable (VAS 5051/5A)

• ACC Adjustment Device (VAS 6190)

• Wheel alignment computer

• Adjustment Tool (VAS 6190/2)

• The (VAS 6190) may have to be adapted for the adjustment procedure. Refer to => [ ACC Setting Device VAS 6190, Converting for Adjustment Procedure ] ACC Setting Device VAS 6190, Converting for Adjustment Procedure.

• Before driving the vehicle onto the alignment stand, check whether there is a sufficiently large space between the vehicle and the (VAS 6190). The distance between the (VAS 6190) and the vehicle must be 120 cm +/- 5 cm.

• If there is not sufficient space, drive vehicle backward on alignment stand in order to be able to use the corresponding space.

• Before beginning the adjustment, check the DTC memory and correct any malfunctions present.

• The adjustment procedure is described here with the (VAS 6190). However the ADC test fixture (VAS 6041) and ADC reflector mirror (VAS 6041/1) can also be used.

• If there was a previous axle alignment, the steps under "Calibration procedure without a previous axle alignment" should not performed.

Calibration Procedure without a Previous Axle Alignment

- Connect battery charger.

- Select the ACC calibration button on the alignment computer.

- Install quick clamps on the rear wheels.

- Install measuring sensors on the rear wheels.

- Perform a rim run-out compensation on the rear wheels.

• The (VAS 6190) must not be moved on the calibration beam.

Calibration Procedure with or without a Previous Axle Alignment

- Release the bracket - 1 - and remove the air intake grille - 2 -.






- Remove all dirt on the sensor lens.

- Position (VAS 6190) at a distance - A - of 120 cm +/- 5 cm from sensor lens to mirror surface.







• Place a toolbox or container weighing approximately 5 to 7 kg on the (VAS 6190) before installing the measuring sensors and moving the mirror on the calibration beam.

• If weight is not put on the (VAS 6190) , it could tip over when the mirror is moved and/or when the measuring sensors (VAS 6190) are installed.

- Load the (VAS 6190) with the weight - arrow - as shown in the illustration.






- Install the front wheel measuring sensors - 1 - on the (VAS 6190).






- In area - A -, bring item - 2 - on rotary knob into alignment with marking on mirror (number 2 on rotary knob must face toward vehicle).






- Now align by sliding it sideways - arrows B - (VAS 6190) so that the laser beam is horizontally centered on the senor lens.






- Bring bubble levels - 2 - on (VAS 6190) into balance using adjustment screws - 1 -.






- Adjust vertical slits - 4 - on (VAS 6190) so that laser beam is vertically centered on sensor lens.

- Adjust the same front axle individual toe settings using fine adjustment screw - 3 -.

- The difference between individual toe values must be less than 6' or they must be the same.

- Bring bubbles - 2 - on measurement sensor - 1 - into balance.






- Now using laser beam - 3 - on (VAS 6190) , check whether laser beam contacts sensor lens.

• If the laser beam still meets the sensor lens at this step after adjusting the same individual toe values, the (VAS 6190) is aligned correctly (positioned).

• If the laser beam does not meet the sensor lens, (VAS 6190) alignment must be performed again.

- Connect (VAS 5051 B).

- Connect (VAS 5051/5A) to diagnostic connector.






- Switch (VAS 5051 B) on.

(VAS 5051 B) is ready to operate when it displays operating modes in button fields.

- Switch on ignition.

- Touch Guided Fault Finding.

- Select in succession:

• Brand

• Type

• Model year

• Version

• Engine Code

- Confirm data entered.

Wait until the (VAS 5051 B) has checked all available control modules in vehicle.

- Press the go to button and select "function/component selection".

- Select the corresponding program in "Guided Functions".

Now follow instructions on screen to perform adjustment.

- Turn the (VAS 6190/2) in - direction of arrow A or B - and use the lower screw - 2 - and the upper screw - 1 - for precision adjustment in "Guided Fault Finding".







The ACC adjustment is only accepted if "actuator diagnosis ended" is displayed in (VAS 5051/B).

- Switch ignition off.

- Disconnect (VAS 5051/5A) connector from diagnostic connection.

- Disconnect battery charger.

- Install the air intake grille. Refer to Removal and Installation.