This OBD interface activates the advanced key, Kessy function in the BCM2 comfort control unit Suitable for the following vehicles: Audi Q4 F4 * Audi A5 F5 Audi A4 8W Audi A6 4A Audi A7 4K Audi A8 4N Audi Q5 FY Audi Q7 4M Audi Q8 4M Audi e-tron GE VW ID-Buzz EB * VW Golf 8 VIII * VW Touareg CR VW Passat B8 VW T7 ST * Seat Leon KL * Skoda Kamiq NW7 Skoda Scala NW1 For upgrading or recovery Simply connect the adapter to the vehicle's OBD port - done! The coding adapter automatically adapts retrofitted parts to the vehicle's existing coding Scope of delivery: 1x coding dongle Notes: * Currently, the affected control unit must be unlocked for a limited time before using the dongle. This must be carried out by a workshop with valid GEKO access