On certain M5 and M6 series vehicles, the rear driveshaft may have been inadequately welded during manufacturing. Over time, this could result in the driveshaft potentially fracturing, which would result in a loss of propulsion which, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash causing injury and/or property damage. Correction: Dealers will inspect the driveshaft and, if necessary, replace it.