With the release of quarterly earnings on Thursday VW revealed it had set aside 1 billion euros in risk provisions to help pay for the diesel emissions cheating scandal, taking the overall cost of diesel cheating to 30 billion euros.

In addition, VW has set aside 5.5 billion euros in contingent liabilities of which 3.4 billion euros has been earmarked to cover potential lawsuits, Witter said.

In 2015 VW was caught using illegal engine control software to cheat U.S. pollution tests by masking excessive levels of nitrogen oxide pollution coming from its diesel cars.

(Reporting by Edward Taylor, editing by Riham Alkousaa)