Welcome to the comprehensive guide for the SL-Class, model code R129, produced from 1989 to 2001. This iconic third-generation SL represents a pinnacle of German engineering, offering a blend of exhilarating performance, refined luxury, and advanced safety features for its era. Designed as a flagship grand touring convertible, the R129 SL was engineered with an emphasis on driver experience and technological innovation, including its distinctive integrated roll-over bar and sophisticated multi-link rear suspension. This manual covers all R129 SL models from 1990, including the 300SL, 300SL-24, and 500SL variants, providing an in-depth look at this exceptional vehicle.

This Factory Service and Repair Manual offers a complete A-Z guide for maintaining and repairing your SL-Class. It details everything from routine scheduled maintenance, such as oil changes and fluid checks, to complex diagnostics and component-level overhauls. Inside, you will find extensive coverage of all major vehicle systems, including the engine mechanical and management systems, automatic transmission, drivetrain, suspension, steering, brakes, and the intricate electrical system. Furthermore, the manual provides detailed procedures for body and chassis work, comfort and convenience systems, and critical safety systems, along with valuable troubleshooting guides, wiring diagrams, and technical specifications necessary for ensuring the longevity and optimal performance of your SL.