This manual covers the 1991 Mercedes-Benz 350 SD Turbo, a luxury sedan renowned for its robust engineering and diesel powertrain. Representing the pinnacle of its era, this vehicle targeted discerning buyers seeking refinement, durability, and efficient performance. Key features include a powerful turbocharged diesel engine, sophisticated suspension systems, and luxurious interior appointments, all reflecting Mercedes-Benz's commitment to quality and innovation. This model, likely bridging the W126 and W140 chassis generations, offered a blend of comfort and advanced technology for its time.

This comprehensive service manual provides detailed information for all service and repair operations. It covers essential areas such as engine maintenance and overhaul, fuel system diagnostics, drivetrain service, suspension and steering system repair, brake system servicing, and electrical system troubleshooting. The manual includes extensive wiring diagrams, diagnostic procedures, component identification, and critical specifications and tolerances, making it an indispensable resource for owners, mechanics, and technicians aiming to maintain and repair the Mercedes-Benz 350 SD Turbo.