The SLK-Class, specifically the R170 chassis, represents the first generation of this compact premium roadster, produced from 1998 to 2004. This model is renowned for its innovative Vario-roof, a retractable hardtop that seamlessly transforms the vehicle from a coupe to a convertible, offering a unique dual experience. Competitively positioned against vehicles like the BMW Z3 and Porsche Boxster, the SLK-Class embodies a commitment to engineering quality and refinement, providing a blend of sporty performance and everyday usability. Engine options ranged from efficient four-cylinder Kompressor models to powerful V6 variants, including the high-performance SLK32 AMG, all designed to deliver an engaging driving experience. This comprehensive workshop service and repair manual provides detailed guidance for maintaining and repairing the SLK-Class R170 across its production years. It covers an extensive array of systems, including engine mechanicals, fuel, ignition, cooling, and exhaust systems, as well as automatic and manual transmissions, clutch, suspension, steering, and brakes (including ABS and ESP). Furthermore, the manual details electrical systems, body and interior components, HVAC, and the signature Vario-roof mechanism, including specific troubleshooting for common issues. With in-depth procedures for routine maintenance, component replacement, and advanced diagnostics, this manual is an indispensable resource for owners and technicians seeking to preserve the integrity and performance of their SLK-Class.