Volkswagen is recalling 317 model 2012 Audi A6 vehicles manufactured from April 8, 2011, through May 26, 2011. Due to a problem in the stitching process of the curtain air bag, the seam of the air bag may not be stitched properly. In the event of a crash, the head curtain air bag may not deploy and will not be able to properly protect an occupant, increasing the risk of an injury. The safety recall is expected to begin during January 2012. 11V-580.