Wiedeking played a leading role in Porsche's attempted takeover of Volkswagen, which was ultimately unsuccessful although windfall gains from financial instruments linked to VW shares helped Wiedeking become the best paid executive in Germany in 2008. The bid left the Porsche holding company with debts of €10 billion, whilst Wiedeking walked away with a severance package of €50million. After his departure from Porsche Wiedeking was charged with market manipulation for his role in the takeover bid. The charges were dropped in July 2016 due to a too little chance of success.