German Transport Minister Alexander Dobrindt has announced a recall of Porsche 3-litre Cayenne cars after finding illegal emissions controlling software in the vehicles.
Dobrindt told reporters on Thursday he was withdrawing certification for the vehicles, and Porsche would bear 100 percent of the cost of the recalls.
Volkswagen CFO Frank Witter had no immediate comment on an earnings call.
Separately the US Environmental Protection Agency and California Air Resources Board is set to approve a fix for more than 300,000 older Volkswagen AG diesel cars, two people briefed on the matter told Reuters.
The fix will include hardware and software upgrades.
The world's largest automaker will still need to obtain approval for a resale plan for the 2009-2014 model diesel vehicles after making repairs, but the fix is a significant milestone for the company that aims to move beyond its diesel emissions crisis. Volkswagen and EPA did not immediately comment.
It comes two years after Volkswagen was found to be cheating on its diesel emissions tests, and six months after it reached a $6 billion settlement.