VW also installed the EPA defeat device software on Porsche and luxury Audi diesels
 

WASHINGTON ? Today, EPA is issuing a second notice of violation (NOV) of the Clean Air Act (CAA) to Volkswagen AG, Audi AG and Volkswagen Group of America, Inc. This NOV is also being issued to Porsche AG and Porsche Cars North America. These five companies are collectively referred to as Volkswagen (VW). The NOV alleges that VW developed and installed a defeat device in certain VW, Audi and Porsche light duty diesel vehicles equipped with 3.0 liter engines for model years (MY) 2014 through 2016 that increases emissions of nitrogen oxide (NOx) up to nine times EPA?s standard. The vehicles covered by today?s 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.

11/02/2015: EPA, California Notify Volkswagen of Additional Clean Air Act Violations

VW software emissions scandal widens to include Porsche | Ars Technica

That the scandal has now hit Porsche calls into question VW's new chief executive, Mathias Mueller. Before recently being elevated to VW's top position to clean up the emissions scandal, he was the head of Porsche.

I have a cayenne diesel, i was wondering when this would hit heh. No reason to do it on the 2.0d and not on the 3.0d

This doesn't surprise me at all. Aren't they all owned by the same parent company?