KUFATEC Coding Key Interface for final coding, if original bi-xenon headlights have been retrofitted on the Skoda Octavia 5E Simply connect the adapter (coding key) to the vehicle's OBD interface - done! The interface automatically adapts the retrofit to the existing coding of the vehicle Scope of delivery: 1 coding key Note: The diagnostic interface can only be used for one vehicle Check compatibility with the control unit of the on-board network