Legal action VW had been promoting its diesel cars in the US as being better for the environment. The US law firm Hagens Berman is launching a class-action suit against VW on behalf of people who bought the relevant cars. The models cited by the law firm are the diesel versions in the US of: Jetta (2009 - 2015) Beetle (2009 - 2015) Audi A3 (2009 - 2015) Golf (2009 - 2015) Passat (2014 - 2015) "While Volkswagen tells consumers that its diesel cars meet California emissions standards, vehicle owners are duped into paying for vehicles that do not meet this standard and unknowingly pay more for quality they never receive," the firm alleged.