This comprehensive workshop repair manual is a valuable resource for anyone working on a Mercedes-Benz W126 model produced between 1981 and 1991. The manual provides detailed technical information on a wide range of topics, covering all aspects of maintenance and repair. It includes sections dedicated to the engine, electrical system, maintenance procedures, owner's information, climate control system, and body and chassis. This manual covers specific models including the 300SD (1981-1985), 300SDL (1986-1987), 300SE, 300SEL (1988-1991), 350SD (1991), 350SDL (1990-1991), 380SE (1984-1985), 380SEL (1981-1983), 380SEC (1982-1983), 420SEL (1986-1991), 500SEL (1984-1985), 500SEC (1984-1985), 560SEL, and 560SEC (1986-1991). Whether you are a professional mechanic or a dedicated DIY enthusiast, this manual will empower you with the knowledge and instructions necessary to diagnose and repair your Mercedes-Benz W126.

The Mercedes-Benz W126, produced from 1981 to 1991, represents a pivotal era in the history of the marque. This generation of the S-Class, codenamed W126, marked a significant departure from its predecessors, ushering in a new era of luxury, engineering sophistication, and safety. The W126 was the first S-Class to feature a fully galvanized body, providing superior corrosion resistance and longevity. Its aerodynamic design, with a drag coefficient of 0.34, was groundbreaking for its time, contributing to a smooth and quiet ride. The W126 offered a diverse range of powertrain options, including petrol and diesel engines, with displacements ranging from 2.8 to 5.6 liters. These engines were renowned for their smoothness, refinement, and durability, while transmissions ranged from four-speed automatics to five-speed manuals. The W126 also introduced new safety features, including anti-lock brakes (ABS) and driver-side airbags, making it one of the safest cars of its era.

Beyond its engineering prowess, the W126 exuded an unparalleled level of luxury and refinement. The interior was meticulously crafted with high-quality materials, including leather upholstery, wood trim, and plush carpeting. Features like power-adjustable seats, climate control, and a premium sound system were standard equipment, setting a new benchmark for comfort and convenience. The W126 quickly became a symbol of prestige and status, sought after by discerning individuals and celebrities alike. Its impact on the automotive industry extended beyond its own generation, influencing the design and features of subsequent Mercedes-Benz models and setting a standard for luxury car development that continues to resonate today. The W126 remains a highly desirable classic car, revered for its timeless elegance, enduring quality, and lasting legacy.