German luxury car maker Daimler

German luxury car maker Daimler, which is being investigated for alleged emissions cheating, announced Tuesday a voluntary recall of over three million Mercedes-Benz diesel vehicles in Europe.
It said it had already launched a voluntary service action for some models and that "in order to effectively improve the emissions of additional model series, Daimler has now decided to extend the service action to include over three million Mercedes-Benz vehicles".