German auto supplier Robert Bosch GmbH played a key role in developing the software that let Volkswagen cheat on emissions rules, according to new allegations filed in a San Francisco federal court on behalf of car owners.
The allegations, reported by Reuters, contend that Volkswagen could not have modified engine software to deceive emissions regulators without Bosch's help.
Bosch did not allow automakers to modify the engine software without its approval, according to the court papers. Therefore, the lawyers argued, Bosch must have known that its software had been transformed into a "defeat device."
"It is inconceivable, then, that Bosch did not know that the software it was responsible for defining, developing, testing, maintaining and delivering contained an illegal defeat device," the papers said, adding, "Bosch was in on the secret."