OBD adapter for final coding when retrofitting original EU LED taillights Simply connect the adapter to the vehicle's OBD interface - done! The interface supports all necessary coding Scope of delivery: 1x coding dongle Note: Also to be used for vehicles converted from USA to EU LED taillights + possible cable adapters are also required Check the compatibility of the comfort control unit due to the dynamic turn signal function This coding adapter can only be used for one vehicle Compatible with the following models: Audi A4 8W (up to year 2019) Audi A5 F5 (up to year 2019) Audi A6 4A (up to year 2020) Audi Q5 FY (up to year 2020) Audi Q7 4M (up to year 2020) VW Touareg CR (up to year 2020)