 BMW is recalling more than 390,000 vehicles because they're equipped with airbag inflators that could explode and harm those in the car. The carmaker says the original steering wheel may have been replaced with a sport wheel equipped with a Takata inflator. No injuries have been reported. The recall covers certain 3 Series sedans from 2006 to 2011 and 3 Series sport wagons from 2006 to 2012.