Volkswagen had to pay nearly $14 billion after it was found cheating on emissions tests to make its cars look more efficient than they were.
In that initial scandal, some Audi cars were looped in; Audi is owned by the Volkswagen Group. But Reuters reports many more cars may have cheated on those tests, which Volkswagen confirmed on Sunday.
It's not clear which Audi models were involved, though The Wall Street Journal reports it affected sedans and SUVs.
Adaptive shift programs can lead to incorrect and non-reproducible results.
German newspaper Bild am Sonntag reported Audi cars could detect if the steering wheel was turned. If it wasn't (usually the case in lab tests), the car activated pollution controls that were otherwise shut off.
Volkswagen told Reuters the software had been in its cars for years.
How it was found out
Audi stopped using that program in May 2016, months after Volkswagen was ordered to recall its cars, Engadget reports.
The cheating was found out because the California Air Resources Board's tests involve turning the steering wheel. CARB found the software last summer, Bild reported.
The device used in the Audi cars, only identified as a model with an automatic transmission, was not the same as the one in Volkswagen cars. In the VW scandal, Audi's recall was limited to 3.0-liter diesel engines.
For the moment, we have no information on this issue.
Meanwhile, a spokesman from Germany's Transport Ministry said the United States never shared any relevant information despite reportedly knowing for months.
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