The Mercedes-Benz W116, produced from 1972 to 1980, represents a significant era in automotive luxury and engineering. As the first model designated as an S-Class, it set new standards for comfort, safety, and performance. Available in variants such as the 280 S, 280 SE, 300 SD, 450 SE, and 450 SEL, the W116 offered a range of powerful engines, including inline-six, inline-five diesel, and V8 options, all paired with robust automatic transmissions. Its design emphasized a spacious and comfortable interior, advanced safety features for its time like crumple zones and available ABS, and a smooth, refined driving experience, solidifying Mercedes-Benz's reputation for quality and innovation. This comprehensive Workshop Repair Service Manual provides in-depth guidance for the Mercedes-Benz W116 models produced between 1973 and 1980. It covers all essential systems, including powertrain components like engines, transmissions, and fuel systems; chassis and suspension elements such as brakes and steering; and the electrical system with detailed wiring diagrams. The manual includes routine maintenance procedures, periodic lubrication schedules, troubleshooting guides, and detailed substeps for disassembly, assembly, and repair, ensuring owners and technicians can effectively maintain and restore the vehicle. Its extensive coverage and professional-level detail make it an invaluable resource for preserving the integrity and performance of this classic Mercedes-Benz.