Audi's head of powertrain development, Stefan Knirsch, has quit amid accusations he was involved in the Volkswagen Group's emissions scandal.
The board of management member, who had held his latest role for just nine months, is accused of knowing about the diesel engine emissions manipulation practices that were brought to light last year. Audi has today confirmed he has now stood down after being suspended by the brand.
Earlier claims had suggested Stadler, who was made chairman of Audi in 2010, was involved in the scandal because he had knowledge of the software used to manipulate emissions tests for the 3.0 TDI engine. Stadler maintained he had no prior knowledge of the affair, and it seems investigators have agreed with him so far.