Coding of hidden comfort functions on Audi, Volkswagen, Skoda, and SEAT models In-depth computer diagnostics and error analysis Test of arrows on the dashboard during sweep Digital display of oil temperature and remaining fuel in the tank Full shutdown or last mode memory of Start-Stop system Full-screen activation of Apple CarPlay and Android Auto Video playback while driving Activation of multimedia engineering menu Window, trunk, and mirror control from the key fob Electric trunk closing with a button and key Intensive flashing of rear stops and hazard lights in emergency Activat