It basically shifts the argumentation from an Audi scandal (more Audi engines than VW engines were involved, and Audi came up with this trick) to Bosch, the maker of the ECU and its model, which is disassembled here. At least that is what I understood from the presentation.<p>The car makers just adjust the parameters of the ECU via CAN a2l files. The Bosch model already includes the "low temperature cheating" mode, which is probably called "Akustikfunktion". The legal question is who really produces this ECU model SW, Bosch or someone else. The parameters from the car makers just use this cheating mode, bypassing NOx control.<p>Almost every single car tested had too high NOx emissions, when not being run on the european test cycle on the dyno.