This special function has the following functionalities for VAG Immo V Transmission Control Units

• Create backup

• Restore from backup

• Mileage Calibration

You have to work on bench, using the ZN151 DS box, in order to perform mileage calibration procedure.

In order to perform any operations with TCU, you need to press “Perform” button first. Once this procedure is executed, the other buttons will no longer be grayed out. It is advisable to first save a back up, before performing further actions.