This manual provides comprehensive technical information for a wide range of vehicles produced between 1985 and 2010, including the C-Class (W203, W204), CL-Class (C215, C216), CLK-Class (A209, C209), CLS-Class (C219), E-Class (W210, W211), G-Class (W463), GL-Class (X164), ML-Class (W163, W164), R-Class (W251), S-Class (W220, W221), SL-Class (R230), SLK-Class (R171), and SLR McLaren (R199). Vehicles from this era are renowned for their advanced engineering, luxurious appointments, and robust performance, offering a blend of comfort and driving dynamics across various segments, from executive sedans to high-performance sports cars and luxury SUVs. This resource details the intricate systems and components that define the commitment to quality and innovation. The scope of this professional service and repair workshop manual is extensive, covering all essential aspects required for the maintenance and repair of these models. It includes detailed procedures for routine and scheduled maintenance, engine mechanical and performance aspects, fuel and transmission systems (both manual and automatic), drivetrain, brakes, suspension, steering, and the complex electrical and electronic control units. Furthermore, it offers in-depth guidance on troubleshooting, component replacement, rebuild procedures, and the use of specialized tools and diagnostic equipment. This manual serves as an indispensable resource for authorized dealerships, independent repair facilities, professional mechanics, and discerning enthusiasts seeking to ensure the optimal performance, reliability, and longevity of their vehicles.