Mercedes Benz will be recalling approximately five hundred 2012 E350 and 2012 E550 Coupes for a problem with the right side window curtain airbag. According to Mercedes, improper stitching of the airbag may cause it to not deploy as intended. The lemon stitching could cause the airbag to deflate quicker than intended, resulting in an increased risk of injury to the vehicle occupants. Owners wanting more information about the problem may contact Mercedes-Benz at 1-800-367-6372.