Until now, VW’s version of events on the diesel scandal has been clear: the core brand alone was responsible. The subsidiaries, and the luxury units Audi and Porsche in particular, had nothing to do with the systematic manipulation of diesel engines.
That’s not entirely the case. It’s true that engineers at VW’s main plant in Wolfsburg initiated the fraud. Handelsblatt has learned from company and industry sources that the manipulation originated not at VW but at Audi. The offending software was devised at Audi’s plant in Ingolstadt, in southern Germany.