Belt Tensioner '10 W221 PDF

A document that provides a visual diagram and parts list for the belt tensioner system of a vehicle identified as the 2010 Mercedes-Benz S-Class (W221). The first page features an illustrative diagram showing the belt tensioner and associated components, such as the guide pulley and hexalobular bolt. The second page contains a detailed parts list, including part numbers, descriptions, and quantities for the belt tensioner, hexalobular bolt, and various pulleys.