An unknown "illegal defeat device" was found in one of the carmaker's Mercedes models, a German newspaper reports. The country's auto sector is struggling to restore its reputation following the Dieselgate scandal.
German automaker Daimler on Sunday faced fresh allegations of emissions cheating after revelations about a previously unknown manipulation software were made public.
The country's vehicle regulator has begun a formal investigation after discovering a new device in the company's Mercedes-Benz model GLK 220 CDI, the Bild am Sonntag newspaper reported.
According to Bild, the investigation is focusing on another "illegal defeat device" installed in around 60,000 vehicles produced between 2012 and 2015 with the exhaust emission standard 5.
Bild reported that regulators discovered the controversial software in late 2018. It said further emissions tests with a GLK model then confirmed their suspicion.
The paper said the European Union's emissions limit of 180 milligrams of nitrogen oxide per kilometer was clearly exceeded once the software was deactivated during the tests.
Software has been updated
Bild said the newly-discovered cheating software had been subsequently removed secretly during software updates by Daimler.
The Stuttgart-based carmaker confirmed a probe was underway by the Federal Motor Transport Authority (KBA). A spokesman told the German news agency Deutsche Presse-Agentur that the company had been in talks with the KBA for months.
"We fully cooperate with the Federal Motor Transport Authority and are reviewing the facts," Daimler said in a statement.