Necessity Of Calibration

• 1. The adaptive cruise control (ACC) must be calibrated after the following procedures
• 2. The driver assistance systems front camera must be calibrated after the following procedures
• 3. The rearview camera must be calibrated after the following procedures:
• 4. Vehicle condition
• 5. Calibration surroundings:

1.  The adaptive cruise control (ACC) must be calibrated after the following procedures:

Conditions

• If the Control Module for Adaptive Cruise Control -J428- is replaced.
• Lock carrier service position was performed.
• The lock carrier was removed and installed.
• The lock carrier was replaced
• The rear axle toe were replaced.
• Changes were made to the suspension that affect the height.

Refer to Adaptive Cruise Control, Adjusting/Calibrating  .

2.  The driver assistance systems front camera must be calibrated after the following procedures:

Conditions

• Changes made to the wheel alignment on the rear axle.
• Change of the height of one axle by more than 5 mm.
• Change of the height of both axles by more than 10 mm.
• Removing and installing or replacing the camera.
• Removing and installing the windshield.
• Repair work on components in which a camera is installed or that affect the component location of the camera.
• The DTC memory shows no basic setting/adaptation or an incorrect one.

Refer to Driver Assistance Systems Front CameraR242, Calibrating  .

3.  The rearview camera must be calibrated after the following procedures:

• Alternations made to the wheel alignment on the rear axle.
• Change of the height of one axle by more than 5 mm.
• Change of the height of both axles by more than 10 mm.
• Removing and installing or replacing the camera.
• Repair work on components in which a camera is installed or that affect the component location of the camera.

4.  Vehicle condition:

Conditions

• The parking brake must be set.
• The steering wheel must be in the center position and the wheels must be straight.
• All doors, the hood and the rear lid must be closed.
• There must not be anyone inside the vehicle.
• Vehicle must not be loaded (curb weight).
• The vehicle must be in drive ready mode.
• The system must be active and displayed in the display unit.
• The vehicle must not be moved during the calibration.
• Make sure both exterior rearview mirrors are folded out.
• The camera lens must be clean.
• The battery charger must be connected and switched on. Refer to Battery, Charging .

5.  Calibration surroundings:

Conditions

• The calibration surface must be level.
• The calibration environment must be free of objects in order to prevent false detection of lines.
• The calibration environment must have even lighting conditions. Avoid strong differences in lighting by headlamps or direct illumination.

Reflections affect image recognition by the camera and may make it impossible to perform the calibration.