Volkswagen's diesel emissions crisis will take a lot of fixing.
The automaker said Thursday it was recalling 8.5 million diesel vehicles in Europe, including 2.4 million in Germany. The cars are fitted with software that makes their engines produce far fewer toxic emissions in official tests than on the road.
"Remedial action on the vehicles will begin in January 2016 -- at no cost to our customers," Volkswagen said in a statement.
It said it was working as fast as it could to develop a technical fix, which could involve changes to software as well as hardware, depending on the model.