Enlarge / (Photo by TF-Images/TF-Images via Getty Images) (credit: getty images) US investigators are looking into whether Mercedes parent company Daimler used illegal software to cheat emissions tests on diesel vehicles in the US, according to German newspaper Bild am Sonntag, whose report was picked up by Reuters. Though the investigation itself is not new—it was reported as early as April 2016 that the Department of Justice was looking into Daimler's actions around emissions testing its diesel vehicles—the new reports of emissions-cheating software draw parallels to Volkswagen's notorious emissions scandal. The German paper allegedly saw documents indicating that one software function on Daimler diesel vehicles turned off the car's emissions control system after driving just 26 km (16 miles).