EPA says Volkswagen cheated even more than previously thought (Update)
The agency also added the 3.0-liter diesel six-cylinder and several more models to the list of vehicles it says were illegally equipped.
The models include the 2014 VW Touareg, the 2015 Porsche Cayenne and the 2016 Audi A6 Quattro, A7 Quattro, A8, A8L and Q5.
The 3.0-liter vehicles spew emissions of nitrogen oxide up to nine times the EPA standard, the agency said.
The Clean Air Act violation notice covers about 10,000 diesel passenger cars sold in the U.S. since model year 2014. It also includes an unknown number of 2016 vehicles.
"VW has once again failed its obligation to comply with the law to protect clean air for all America," said Cynthia Giles, assistant administrator for the EPA's Office for Enforcement and Compliance Assurance.
Giles said the EPA had "clear evidence" of the violations and that an investigation was ongoing.
Volkswagen issued a following statement: "The United States Environmental Protection Agency (EPA) informed Volkswagen Aktiengesellschaft on Monday that vehicles with V6 TDI engines had a software function which had not been adequately described in the application process. Volkswagen AG wishes to emphasize that no software has been installed in the 3-liter V6 diesel power units to alter emissions characteristics in a forbidden manner.
"Volkswagen will cooperate fully with the EPA clarify this matter in its entirety. ■