Preliminary Work

Information 

The following tools are required for calibration:

• Calibration plates and wheel center mountings:  > VAS 6350A - Calibration unit  .
• Doppler generator:  > VAS 6350/4 - Calibration Unit for Lane Change Assist  .
• Spacing laser:  > VAS 6350/2A - Spacing laser  .

Information 

The following conditions must be observed in order to perform calibration: 

• Calibration must only be performed on level ground.
• The vehicle must be empty.
• Wheels must be positioned straight ahead.
• Vehicle doors must be closed.
• Types must have the specified air pressure.
• Vehicles with adjustable chassis: Set the chassis to "normal" (medium height).
• Vehicles with front axle lift system: Set the front axle lift system to "lower".
• The left and right control unit must be coded.
• Component protection must be taught.
• Check that there is adequate space beside the vehicle and that there are no metal objects/obstacles within 2 meters (6 feet) of the vehicle.
• There must not be any moving objects/people in the calibration area (Doppler generator - vehicle) of the vehicle during calibration.
• There must be no heavy soiling in the sensor area on the front apron.
• There must be no stickers in the sensor area on the front apron.
• The calibration plates and Doppler generator must be fitted, centered and aligned in accordance with the operating instructions.
• The surface of the calibration board must be clean and free of objects.

Workshop conditions 

• The system must only be calibrated in a suitable area of the workshop.
• This area of the workshop must be sheltered from all environmental influences, such as rain, snow and swirling dust.
• The workshop must be at room temperature.

1. Fit reflectors on wheel nut support:
   1. 1.1  Fit the wheel nut support with the right and left reflector on both rear wheels on the vehicle in accordance with the operating instructions for > VAS 6350A - Calibration unit  . The reflectors must be hanging freely.

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Fitting reflectors (shown as an example)

2. Park the vehicle on a level surface and set up the > VAS 6350A - Calibration unit  so that it is positioned parallel and symmetrically behind the vehicle in accordance with the operating instructions for VAS 6350.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Setting up calibration unit

   For gap dimensions and instructions for aligning the calibration unit, see PIWIS Tester.