U.S. regulators approve VW diesel fix for 84,000 vehicles

By David ShepardsonWASHINGTON (Reuters) - The U.S. Environmental Protection Agency and California Air Resources Board on Friday announced approval of a fix for about 84,000 older Volkswagendiesel vehicles that can emit excess emissions.Volkswagen, the world's largest automaker, agreed last year to offer to buy back up to 475,000 2.0-liter diesel vehicles that had been sold in the United States or offer fixes if regulators approved.Friday's announcement covers a fix for 84,390 2012-2014 Passat di