Ford Motor Co. installed software that enabled its F-250 and F-350 Super Duty trucks to cheat at passing federal emissions tests, according to a lawsuit by truck owners filed on Wednesday, a claim the No. 2 USA automaker described as "baseless".
The lawsuit, filed in U.S. District Court for the Eastern District of MI, also named German auto supplier Robert Bosch GmbH as a defendant.
The lawsuit, filed on January 10 in the U.S. District for the Eastern District of MI, further claims that the trucks' touted performance, power and towing capabilities are only obtained by switching off or turning down emissions controls when the software senses the vehicle is not in an emissions-testing environment.
On Wednesday, Bosch said it took "very seriously" allegations of diesel software manipulation by Ford Motor Co raised by a USA law firm which named the components maker as a defendant in a lawsuit.
"Ford's advertising of these Super Duty pickups is littered with over-the-top promotion of fuel economy and so-called "cleanest ever" power", Berman said.
The lawsuit against Ford, which also names the supplier Bosch as a defendant, said Ford installed "defeat devices" on about a half million 2011-17 Super Duty diesels.More news: Falcons vs. Eagles: Highlights, game tracker from Divisional Round
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There's another company mentioned in the lawsuit accusing Ford of cheating emissions standards.
The suit alleges that Ford equipped the vehicles listed with software that allowed for giving false results during emissions testing and thus circumventing regulations.
In a separate written statement, a Bosch spokesperson told Bloomberg, "Bosch takes the allegations of manipulation of the diesel software very seriously".
Ford shares closed down 0.4 percent at $13.03.
Last year, Bosch agreed to pay $327.5 million to US owners of Volkswagen AG vehicles for its part in installing illegal emissions-cheating software. "Bosch is cooperating with the continuing investigations in various jurisdictions, and is defending its interests in the litigation", according to a statement from company spokeswoman Alissa Cleland.