BERLIN, Sept 24 (Reuters) - Volkswagen will dismiss the R&D chiefs of Audi and Porsche and its top manager in the United States where the carmaker has been found manipulating diesel emission rules, a senior source said on Thursday.
Audi R&D boss Ulrich Hackenberg, Porsche's Wolfgang Hatz and VW's U.S. chief executive Michael Horn will be dismissed at a meeting of the supervisory board on Friday, the source said.
Germany's Bild newspaper earlier on Thursday reported the dismissals of Hackenberg and Hatz.
VW, Audi and Porsche all declined comment.
(Reporting by Andreas Cremer; Editing by Alexander Ratz and Kirsti Knolle)