FRANKFURT -- BMW and Daimler say their diesel-powered vehicles comply with U.S. clean air rules.
Their comments come after the U.S. Environmental Protection Agency said on Friday that fellow German automaker Volkswagen used software for diesel VW and Audi branded cars that deceived regulators measuring toxic emissions. VW could face up to $18 billion in penalties.
BMW and Daimler's Mercedes-Benz have targeted the U.S. as a market for their diesel vehicles.
A BMW spokesman said: "There are clear laws and guidelines governing this and we adhere to them. Everything else is manipulation and deception and we don't commit such fraud."
Daimler said it was not aware of any investigation of Mercedes vehicles in the U.S. "We heard of the EPA's accusations against VW from the press. The issue described by the press does not apply to Mercedes-Benz Cars," the automaker said in a statement.
Christiaan Hetzner and Reuters contributed to this report