OBD interface for commissioning / coding or parameterization of LED headlight control units suitable for the following vehicles: Audi A1 GB Audi Q3 F3 Simply connect the adapter to the vehicle's OBD interface - done! The interface automatically adapts the retrofitting to the existing coding of the vehicle. Suitable for the following models: Audi Q3 F3 with control parts 4K0941572CC (address D6, D7), LED high or 4K0941591BC (address D6, D7) LED high matrix Scope of delivery: 1x coding dongle for OBD Note: Only to be used in connection with the retrofitting of the corresponding automatic headlight adjustment system (aLWR) Please read the part numbers from addresses 29, 39, D6 and D7 per diagnosis and compare the part numbers. The light switch must be in the OFF position during parameterization. The coding adapter can only be used for one vehicle Other vehicles and part numbers on request