Volkswagen Group's
"We had a very good start to the year. That is shown in the sales figures for January and for February," Mueller said at a VW reception at the Geneva auto show.
Group sales figures for February are expected to be released in the second week of March.
Earlier this month VW said sales across the 12-brand group in January were up 3.7% at 847,800 vehicles, which compared with a 5.2% drop in December sales.