The world’s biggest carmaker may have a new diesel emissions scandal on its hands.
German officials are investigating Audi — owned by the Volkswagen Group ( — on suspicion that it installed illegal emissions software in 6-cylinder diesel engines in its A6 luxury saloons and A7 coupés. )
The country’s motor vehicle authority has begun a formal investigation, Germany’s Transport Ministry said in a statement emailed to CNN.
Around 60,000 vehicles are affected, and about 33,000 are in Germany, the ministry added.
Defeat devices can make an engine appear to run cleaner during emissions testing than it performs on the road.
Audi did not immediately respond to a request for comment.
Volkswagen admitted in 2015 that it had fitted as many as 11 million diesel vehicles worldwide with software that could cheat emissions tests, triggering a scandal that continues to reverberate through the group.
— Stephanie Halasz contributed to this article
CNNMoney (London) First published May 8, 2018: 10:03 AM ET