KUFATEC Coding Key Interface for final coding after upgrading the original LED taillights of the VW Passat B8 Variant (pre-upgrade) Simply connect the adapter to the vehicle's OBD interface - done! Once the interface is connected to the OBD port, the upgrade will automatically adapt to the current vehicle coding Scope of delivery: 1x coding key Note: Only suitable for vehicles with sales type 3G5 The diagnostic interface can only be used once Not suitable for right-hand drive Not suitable for the USA