1. The 2009 AUDI S4 B8 Service Repair Manual is a comprehensive guide designed to assist owners in maintaining and repairing their vehicle. This manual covers a wide range of topics, including engine, transmission, suspension, brakes, electrical systems, and more, providing detailed instructions and diagrams to help users troubleshoot and fix issues with their car efficiently. With this manual, owners can save time and money by performing repairs themselves and ensuring their AUDI S4 B8 is in top condition.