Enlarge / A sign for car service for Audi and VW is pictured on January 09, 2019 in Berlin, Germany. (credit: Photo by Florian Gaertner/Photothek via Getty Images) On Thursday, a federal grand jury in Detroit, Michigan, indicted four Audi executives for playing a role in the diesel cheating scandals that rocked parent company Volkswagen Group in 2015 and 2016.