Volkswagen may have to set aside more than the 6.5 billion euros ($7.4 billion) it has so far allocated to cover the costs of an emissions scandal if car sales suffer, its chief executive said on Wednesday.
"The 6.5 billion (euros) applies to the recall," Matthias Mueller told reporters after a tour of VW's headquarters in the German town of Wolfsburg.
"I can only speculate about any further provisions. Should there be a change in sales volumes, we would react rapidly."
Lower Saxony Premier Stefan Weil, a VW supervisory board member, said sales had been stable in October so far.
Volkswagen also confirmed it had stopped the sale within the European Union of new cars containing the software that can cheat diesel emissions tests.