The Mercedes-Benz 300SE, part of the second generation W126 S-Class lineup produced between 1980 and 1991, represents a benchmark in luxury executive sedans. Known for its robust engineering, pioneering safety features, and sophisticated comfort, this model embodies Mercedes-Benz's commitment to quality and performance. The 300SE, specifically introduced after the 1985 facelift, features an inline 6-cylinder, 3.0-liter M103 engine with Bosch KE-Jetronic fuel injection, delivering approximately 188 horsepower. Its spacious interior, advanced climate control, and premium audio systems, coupled with a strong emphasis on safety including standard Anti-lock Braking System (ABS) and driver's airbags in later years, made it a highly regarded vehicle in its segment, competing with other luxury marques of the era.

This comprehensive Factory Workshop Service Repair Manual, covering the Mercedes-Benz 300SE (W126) models from 1988 to 1991, provides in-depth technical information essential for maintenance and repair. It details procedures for all major systems, including the engine, automatic transmission, brakes, suspension, and electrical systems, alongside bodywork and climate control. The manual includes routine maintenance schedules, troubleshooting guides, diagnostic procedures, and detailed repair and overhaul instructions, offering dealership-level insights. This resource is invaluable for owners, mechanics, and technicians aiming to preserve the performance, reliability, and longevity of their Mercedes-Benz 300SE, ensuring correct servicing and repairs through clear, expert guidance.