6.1 Infrared System, Calibrating

Special Tools And Workshop Equipment Required

Calibration Tool - Linear Laser - VAS6350/3- (can be used from the Calibration Tool - VAS6350-)
Setting Device Basic Set - VAS6430/1-
Night Vision Calibration Tool - VAS6430/6-
Wheel Alignment Computer

NOTE:

Make sure the Night Vision System Camera - R212- fits correctly in the bracket and the viewing range for the camera is not blocked.
Make sure the protective window on the Night Vision System Camera - R212- is not chipped. Replace it if necessary. Refer to Communication (Infrared System; Night Vision System Camera, Removing and Installing).
If the vehicle has adaptive cruise control and infrared system, then the infrared system must be adjusted/calibrated first and after that can the adaptive cruise control be adjusted.
If the -VAS6430/3- is located on the calibration beam of the - VAS6430/1-, it must be removed.

There Are Two Choices For Calibrating/Adjusting:

The "Quick Access"

This procedure should be selected for the following activities if only the calibration/adjustment will be performed.

"No or incorrect basic setting/adaptation" is stored actively in the DTC memory.
The camera was removed or replaced,
The bumper or the radiator grille was removed or replaced,

The "Complete Alignment"

This procedure should be selected for the following activities if a calibration/adjustment and a suspension adjustment will be performed.

Adjustments were made on the rear axle,
Parts of the suspension were replaced on the vehicle.

NOTE: Both procedures are programmed into the axle alignment computer. The respective procedure is performed automatically. It is only necessary to select the appropriate program for the procedure that will be performed.

Preparation Work for Calibrating and Adjusting Driver Assist Systems. Refer to 2.3.1 Preparation Work for Calibrating and Adjusting Driver Assist Systems.

Calibration Procedure Without A Previous Axle Alignment

Mount the quick clamps to the rear wheels.
Mount the measurement sensor to the rear wheels.
Select the infrared system calibration procedure in the alignment computer.

Calibrating/Adjusting With A Previous Axle Alignment

Connect the battery charger for the battery support mode. Refer to Electrical Equipment (Battery, Charging).
Position the front wheels so they are straight.
Connect the Vehicle Diagnostic Tester to the vehicle (guide the diagnostic cable through the open window).
Turn off all vehicle exterior lamps.
Close all vehicle door.

Procedure For All

Connect the Vehicle Diagnostic Tester to the vehicle (guide the diagnostic cable through the open window).
Position the -VAS6430/6- on the center of the calibration beam of the -VAS6430/1-.
The opening -arrows- must surround the nut or bolt -A- when the -VAS6430/6- is pushed onto the calibration beam.
Fold up the right and left bracket -A-.
Tighten the right and left clamping screw -1- hand-tight.
Set up the -VAS6430/1- with the -VAS6430/6- in front of the vehicle.
Position the -VAS6430/6- in distance -A- to the night vision system camera.

NOTE: Distance -A- 120 cm ± 2.5 cm, measured between the - VAS6430/6- and the lens on the Night Vision System Camera - R212-.

Attach the measuring sensor for the front wheels to the calibration beam.
- For the following work steps, the hoist must be in the lowest position -A-.
Insert the -VAS6350/3- -arrow- into the guide on the - VAS6430/6- and secure it.
Switch on the -VAS6350/3-. A laser beam is beamed on the vehicle.
Turn the lever on the back of the calibration board to align the laser beam so that it is in the center of the camera lens in the horizontal position.

The specified height is now reached and the -VAS6350/3- can be switched off.

Level the bubble level -A- using the adjusting screw -1-.

The bubble adjustment -A- serves to compare the ground conditions.

Move the -VAS6430/1- sideways -arrow B- until the display on the alignment computer is within the tolerance range.
Secure the -VAS6430/1- by turning the screws gently -2- and -3- (to keep the -VAS6430/1- from rolling away).
Turn the precision adjustment screw -1- on the calibration beam until the display on the alignment computer is located within the tolerance range.
Level the bubble level -A- using the adjusting screw
Level the bubble level -B- using the adjusting screw -2-.
Turn the -VAS6350/3- back on and check the specified height and correct if necessary. A laser beam is beamed on the vehicle.
Turn the lever on the back of the calibration board to align the laser beam so that it is in the center of the camera lens in the horizontal position.

The specified height is now reached and the -VAS6350/3- can be switched off.

Connect the power plug -A- for the -VAS6430/6- to the power supply.
Turn on the switch -B- for the -VAS6430/6-.

NOTE: An internal initialization takes place after switching on the - VAS6430/6-. Both LEDs -C- biink at the same time and an acoustic tone will sound if the initialization is successful and was performed without any faults. After this, the -VAS6430/6- is in the ready mode. The green LEDs will blink slowly.

NOTE: Check the bubble level and correct the adjustment if necessary.

Push the button -A- to activate the heating function.

An acoustic signal will sound when the heating function is activated. The heat-up phase has begun.

As soon as the specified temperature is reached, the green LED will stay on.

The heating elements switch off automatically after 20 minutes. An acoustic signal will sound approximately one minute before the heating elements switch off automatically.

Press the button -A- at any time to reset the timer back to 20 minutes. An short acoustic signal confirms that it has be reset.

And Further Work Is Performed Using The Vehicle Diagnostic Tester In "Guided Fault Finding".

Turn on the ignition.
Touch the "Guided Fault Finding" button on the touch screen.
Select the following one after the other:
- Brand
- Type
- Model year
- Version
- Engine Code
Confirm the entered data.

Wait until the Vehicle Diagnostic Tester has checked all the vehicle control modules.

Press the GO TO button and select "function/component selection".
Select the program in "Guided Functions".

Follow the instructions on the screen of the Vehicle Diagnostic Tester to perform the adjustment/calibration.

Turn the adjusting screw with a hex socket wrench (minimum length: approximately 120 mm) to mechanically adjust the Night Vision System Camera - R212- around its roller axle.

Open the hood, unclip the lock carrier cover -1- upward at the front in direction -A- and remove it forward in direction -B-. Refer to Body Exterior (Front Bumper; Attachments, Removing and Installing).
Mount the hex socket wrench -2- and make the adjustment according to the specification in "Guided Fault Finding".

NOTE: Make sure there is no one or nothing between the Night Vision System Camera - R212- and the -VAS6430/6- while adjusting.

Adjusting the pitch-yaw angle of the Night Vision System Camera - R212- is electronic using the Vehicle Diagnostic Tester in "Guided Functions/Fault Finding"