In view of the unexpected US EPA notice of violation. (NOV) on 3.0-liter diesels (earlier post), Porsche Cars North America, Inc. decided to discontinue sales of model year 2014 through 2016 Porsche Cayenne Diesel vehicles until further notice.
The 2 November NOV alleges that the VW Group companies developed and installed a software defeat device—specifically, code in the electronic control module (ECM)—in certain VW, Audi and Porsche light duty diesel vehicles equipped with 6-cylinder, 3.0-liter engines for model years (MY) 2014 through 2016 that results in increased NOx emissions of up to nine times EPA’s standard. The vehicles covered by the new NOV are the diesel versions of the 2014 VW Touareg, the 2015 Porsche Cayenne, and the 2016 Audi A6 Quattro, A7 Quattro, A8, A8L, and Q5.
Porsche said it is working intensively to resolve the matter as soon as possible; existing customers may continue to operate their vehicles normally.