Porsche SE said former Volkswagen Group CEO Matthias Mueller had "resigned" from his post as executive board member responsible for strategy and corporate development from today (30 April).
The automaker said in a statement Mueller would keep, in full, "benefits to which he is entitled under his contract" which, German media reports said earlier, runs out in 2020.
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Supervisory board chairman Wolfgang Porsche said: "Mueller has contributed significantly to putting our company in an excellent position despite the challenges faced over the past few years. I would like to express my gratitude for this on behalf of the entire supervisory board."
The supervisory board has not yet named a replacement.
Remaining board members are Hans Dieter Poetsch (chairman and chief financial officer), Manfred Doess (legal affairs and compliance) and Philipp von Hagen (investment management).
Muellers' replacement, Herbert Diess, is expected to be named head of Audi's supervisory board in May, a traditional post for the VW Group CEO.
Diess is expected to replace Mueller as chair of Audi's 20-strong supervisory board at a meeting on 8 May, one day before the brand's annual general meeting.
The VW CEO traditionally has headed Audi's supervisory board. It's the group's premium brand and most profitable unit.
