KUFATEC Coding Key Interface for final coding, if original LED headlights have been retrofitted on the VW Passat B8 suitable for retrofitting headlights with or without cornering lights Simply connect the adapter (key) to the vehicle's OBD interface - done! The interface automatically adapts the retrofit to the existing coding of the vehicle Selectable options: LED headlights (with or without cornering lights, up to model year 2019) LED matrix headlights (from model year 2020) Scope of delivery: 1x coding key Note: The diagnostic interface can only be used for one vehicle For LED matrix headlights, a front camera must be installed (PR-No.: QK1) Compatibility check of the on-board control unit