The C-Class W204, produced from 2007 to 2014, represents the third generation of this compact executive vehicle. Known for its luxurious appointments, advanced safety technologies, and refined driving dynamics, the C-Class has consistently been a benchmark in its segment, competing with rivals like the BMW 3 Series and Audi A4. This generation is characterized by its robust platform, offering a range of efficient gasoline and diesel powertrains, including turbocharged inline-fours and powerful V6 engines, often paired with the sophisticated 7-speed 7G-TRONIC PLUS automatic transmission. Notable features include pioneering driver assistance systems such as ATTENTION ASSIST and COLLISION PREVENTION ASSIST, alongside a premium interior crafted with high-quality materials and ergonomic design, reinforcing the brand's reputation for engineering excellence and prestige.

This comprehensive factory service manual provides in-depth technical information for the C-Class W204. It is designed to assist professional technicians and advanced DIY enthusiasts in performing all aspects of vehicle maintenance, diagnosis, and repair. The manual covers a vast array of systems, including engine mechanical and management, automatic and manual transmissions, drivetrain, suspension, steering, brakes, electrical systems, body and chassis, HVAC, interior trim, infotainment, and safety systems. Detailed procedures for routine maintenance, troubleshooting, component removal and installation, engine and transmission overhauls, and electrical system diagnostics are included, along with essential technical specifications, wiring diagrams, and special tool requirements, ensuring accurate and efficient service.