Volkswagen revealed in November that it had understated the level of carbon dioxide emissions and fuel usage in around 800,000 cars.
"Employment is safe provided we are selling cars," Bernd Osterloh says. "If we sell no cars, it will get relatively difficult."
South Korea is now the only country other than the U.S. to impose a fine against Volkswagen after finding its vehicles cheated on emissions tests.
Nitrogen oxide emissions of Renault's 1.6 dCi Espace were found in tests to be up to 25 times higher than the current Euro-6 limit, according to a German environmental lobby group.
A criminal inquiry into Volkswagen has been expanded to include tax evasion suspicions, according to reports.
Matthias Müller also said during a speech Monday that the inquiry into the emissions scandal may take several months.
The Frankfurter Allgemeine Zeitunghad reported earlier that an unnamed dealer said Volkswagen business was "dead as a doornail."
The U.S. Environmental Protection Agency on Friday said VW used software that reported false emissions data in all vehicles with 3-liter diesel engines from 2009 to 2016.
Meanwhile, the head of Audi of America said that the emissions scandal had not diminished sales of its vehicles in the United States.
The German automaker manipulated the carbon dioxide emission levels of more petrol-powered vehicles than previously disclosed, Reuters reported, citing sources.
The embattled automaker looks to minimize the long-term effects of its carbon-emissions scandal.
The scandal-plagued German automaker plans to offer impunity as an incentive to encourage employees to come forward with potentially incriminating information.
In the wake of Volkswagen's emissions scandal, Germany's car regulator tested 23 local and foreign brands on suspicion of manipulation of nitrogen oxide emissions.
Volkswagen aimed to increase the pressure on employees who had knowledge of the scandal but fear they could lose their jobs if the information comes to light.
On Monday, the European Union asked Volkswagen to give within 10 days details on the recently revealed “irregularities” linked to the cheating software.
The news of the plan came the same day that the automaker’s engineers admitted to helping fabricate carbon dioxide emissions data.
"Employees have indicated in an internal investigation that there were irregularities in ascertaining fuel-consumption data," a Volkswagen representative says.
U.S. authorities reportedly seized a Volkswagen employee's passport during a recent trip, stoking fears about criminal prosecution.
German regulators stepped up their scrutiny after Volkswagen admitted to false carbon-dioxide emission data concerning about 800,000 cars sold in Europe.
The carmaker says 800,000 cars could be affected in the latest issue involving "irregularities" in carbon dioxide emissions data, and cost the company $2.2 billion.
The U.S. Environmental Protection Agency said Monday that certain Audi, Porsche and Volkswagen models with 3.0 liter engines were also rigged to pass pollution tests.
The scandal's fallout continues: Affected models include the 2014 VW Touareg, the 2015 Porsche Cayenne and the 2016 Audi A6 Quattro, A7 Quattro, A8, A8L and Q5.
