Audi’s chief executive has become one of the most high-profile executives to be arrested in connection with Volkswagen's “dieselgate” scandal.
Rupert Stadler, who has led the Volkswagen Group-owned premium car marque since 2007, had his home raided earlier this month by prosecutors in Munich.
He has been charged with fraud and the falsification of documents which allowed VW to fit so-called “defeat devices” to help diesel cars beat emissions controls.
In 2015 VW - which also owns Porsche, Seat and Skoda - admitted cars were equipped with software that identified when emissions were being checked under test conditions and turned on pollution controls that were not employed in normal driving.
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