Adaptive Cruise Control Adjustment With VAS 6190
Adaptive Cruise Control Adjustment with VAS 6190
Special tools, testers and auxiliary items required
• Vehicle diagnosis, testing and information system (VAS 5051A)
• Diagnostic cable (VAS 5051/5A)
• ACC setting device (VAS 6190)
• Wheel alignment computer
• 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 the vehicle backward onto the alignment stand in order to be able to use the corresponding space.
• Before beginning adjustment, interrogate the Diagnostic Trouble code (DTC) memory and correct any malfunctions present.
The adjustment procedure is described here with the (VAS 6190). However the (VAS 6041) and (VAS 6041/1) can also be used.
•
If there was a previous alignment, the steps under "Calibration procedure without a previous alignment" should not performed.
Calibration Procedure without a Previous Alignment
- Connect the battery charger.
- Activate the vehicle lift mode. Refer to => [ Vehicle Lift Mode ] General Information.
- Select the Adaptive Cruise Control (ACC) calibration button on the alignment computer.
- Install the quick clamps on the rear wheels.
- Install the measuring sensors on the rear wheels.
- Perform a wheel run out compensation on the rear wheels.
Calibration Procedure with or without a Previous Alignment
Vehicle with a Decorative Grille
- Remove the decorative grille - 1 - from the front bumper cover.
Vehicles with a Radiator Grille
- Remove the license plate holder and the adaptive cruise control cover from the radiator grille - 1 -.
Continuation for All Vehicles
• The calibration procedure is described on a vehicle with a decorative grille. The procedure is the same on vehicles with a radiator grille.
- Remove all the dirt on the sensor lens and on the inside of the radar cover.
- Remove the springs on the approximate adjustment device - 1 -.
- Guide the approximate adjustment device - 1 - through the decorative grille from bottom to top - arrow 3 - and position it on the sensor.
- Tilt the approximate adjustment device - 1 - and press it onto the sensor - arrow 2 -.
• 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 the vehicle backward onto the alignment stand in order to be able to use the corresponding space.
- Position the (VAS 6190) at a distance - A - of 120 cm ± 5 cm from approximate adjustment device to mirror surface.
- 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 the (VAS 6190) by sliding it sideways - arrows B - so that the laser beam is centered horizontally on the approximate adjustment device.
- Bring bubble levels - 2 - on the (VAS 6190) into balance using adjustment screws - 1 -.
- Adjust vertical slits - 4 - on the (VAS 6190) so that laser beam is vertically centered on approximate adjustment device.
- 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.
- Check the preliminary adjustment using the laser beam - 3 - on the (VAS 6190).
- The reflected laser beam must hit the same point - 3 - where it leaves the (VAS 6190).
- If the reflected laser beam does not hit the point where it leaves the device, perform the preliminary calibration again.
- Adjust the reflected laser beam using a long 3 mm socket wrench on the bolts 3 mm- 1 - and - 2 - on the laser outlet point.
- Remove the approximate adjustment device once the preliminary adjustment is correct.
- Connect the (VAS 5051/B).
- Connect the (VAS 5051/5A) to the diagnostic connector.
- Switch the (VAS 5051/B) on.
(VAS 5051/B) is ready to operate when it displays operating modes in button fields.
- Switch on the ignition.
- Touch Guided Fault Finding on screen.
- Select one after another:
• Brand
• Model
• Model year
• Version
• Engine code
- Confirm the data entered.
Wait until the (VAS 5051/B) has checked all available control modules in vehicle.
- Press the Go to button and select the "Function/Component Selection" function.
Then
- "Body (Repair Group 01; 27; 50 - 97)".
- "Electrical System (Repair group 01; 27; 90 - 97)".
- "01- On Board Diagnostic (OBD) capable systems".
- "13 - Distance control".
- "J428 - Distance Regulation Control Module, functions".
- "J428 - Distance Regulation Control Module, adjustment".
Now follow instructions on the screen to perform adjustment.
- Use screws - 1 and 2 - for fine adjustment in "Guide Fault-Finding".
CAUTION!
The ACC adjustment is only accepted if "actuator test ended" is displayed in (VAS 5051/B).
- Switch the ignition off.
- Disconnect the (VAS 5051/5A) connector from the diagnostic connection.
- Disconnect the battery charger.
Vehicles with a Decorative Grille
- Install the decorative grille - 1 - in the front bumper cover.
Vehicles with a Radiator Grille
- Install the radiator grille - 1 -.