Two of Volkswagen Group brands, Porsche and Audi, are temporarily stopping sales on models that may now be involved in the automaker’s TDI diesel emissions scandal. The EPA claims the vehicles in question have 3.0-liter TDI engines that are equipped with emissions cheating software, like some of VW’s 2.0-liter smaller diesels.
After first denying the new allegations, Volkswagen says it is now reviewing the findings. In September, the automaker admitted it used so-called defeat devices in models with 2.0-liter engines to fake U.S. emissions tests.
In the newest round of accusations, the Environmental Protection Agency and California Air Resources Board accuse the company of failing to disclose another emissions ‘defeat’ device in the V6 diesel engines found in various sedans and SUVs from the 2014 and 2015 model years. When driving in real-world conditions, the vehicles are said to emit NOx in quantities as high as nine times the legal limit.
Despite challenging the government’s stance, the company has ordered its dealer network to stop selling the V6 TDI-powered Audi A7, A6 Quattro, A8, A8L and Q5, along with the VW Touareg and Porsche Cayenne, according to Automotive News.
“Volkswagen Group of America is working with regulators and will take all steps necessary to remedy any issues, including a potential emissions recall,” the company said in a statement.
The EPA suggests approximately 10,000 vehicles were sold with the offending engines in the U.S. market.