Daimler investigating emissions after US request

DETROIT (AP) — German automaker Daimler AG is investigating at the request of the U.S. government what it says are "possible indications of irregularities" in its emissions certification process.

U.S. owners of Daimler's Mercedes-Benz BlueTEC diesels recently filed a class-action lawsuit claiming the cars are programmed in a way that lets them emit illegal levels of emissions, similar to diesels made by fellow German automaker Volkswagen.