The disclosure of the latest emissions scandal at Volkswagen is based on information provided by a VW engineer, the German newspaper Bild am Sonntag reported Sunday.
The engineer, an employee of the automaker’s research and development department at the company headquarters in Wolfsburg, Germany, told his supervisors about the deception involving carbon dioxide (CO2) emissions at the end of October, the newspaper said.
Other VW employees also have admitted to knowledge of the scam, the report said, without identifying any of the employees.
The cheating began with CO2 emissions in hundreds of thousands of Volkswagen models in 2013 and continued until early 2015, according to the report.
Volkswagen admitted on Tuesday that its emissions-cheating scheme extended to petrol-run engines and carbon dioxide (CO2) outputs. The CO2 emissions irregularities affect 800,000 Volkswagen cars.
The engineers said they were not able to achieve the ambitious goals of Martin Winterkorn, who has since resigned as the chief executive of VW. Winterkorn announced at the Geneva auto show in March 2012 that VW would reduce CO2 emissions by 30 per cent by 2015.
The CO2 emissions scandal follows on the heels of an emissions scandal involving software installed in several VW diesel-powered models aimed at cheating emissions tests around the world.
VW said last month it was setting aside 6.7 billion euros to cover the costs of the scandal involving its diesel models. The CO2 emissions irregularities could cost Europe’s biggest carmaker another 2 billion euros.
It has prompted renewed calls – including from Chancellor Angela Merkel – for VW to ensure a thorough and transparent investigation into the affair.