This comprehensive Mercedes-Benz Model 123 Series Workshop Service Repair Manual provides detailed instructions and illustrations for maintaining and repairing your vehicle. Covering production years 1977 through 1985, this manual encompasses all models and engine variations, including the 230, 240D, 280E, 280CE, 300D, 300CD, 300TD, 300D Turbo, 300CD Turbo, and 300TD Turbo.

The manual is organized for easy navigation and understanding, featuring a numbered table of contents, detailed sub-steps for each repair procedure, and clear warnings, cautions, and notes to highlight critical information. Every repair procedure is broken down into numbered instructions, while bold figure numbers ensure easy reference to accompanying illustrations, drawings, and photos. Enlarged insets provide detailed views of components for easier identification and examination.

This manual goes beyond basic maintenance, offering comprehensive guidance for troubleshooting and repairing electrical systems. Detailed wiring diagrams are integrated with electrical service procedures, making diagnosing and fixing electrical problems a breeze.

With this manual, you can confidently tackle a wide range of repair and maintenance tasks, from routine servicing to more complex repairs. Whether you're a seasoned mechanic or a DIY enthusiast, this comprehensive resource equips you with the knowledge and instructions needed to keep your Mercedes-Benz Model 123 Series running smoothly.

The Mercedes-Benz Model 123 Series, colloquially known as the "W123," was a highly successful range of mid-size cars produced by the German automaker from 1976 to 1985. It encompassed a wide variety of body styles, including sedans, coupes, wagons, and even a short-lived convertible. This generation marked a significant departure from the previous W115/W114 series, introducing a host of advanced features and engineering innovations. The W123 was known for its robust construction, employing a fully galvanized body for exceptional corrosion resistance, a hallmark of Mercedes-Benz quality. This, coupled with a reputation for durability and reliability, cemented its place as a popular choice for taxi and fleet use across the globe.

Beyond its practicality, the W123 series incorporated notable technological advancements. It was the first Mercedes-Benz model to feature a fully independent suspension, contributing to its exceptional handling and ride comfort. The engine lineup was equally impressive, encompassing a range of powerful and fuel-efficient petrol and diesel units. This included the pioneering 300D, outfitted with a turbocharged diesel engine that delivered remarkable performance while achieving impressive fuel economy. The W123's design, despite its age, continues to resonate today, showcasing a timeless elegance that has stood the test of time. Its enduring popularity is further evidenced by the large and dedicated community of enthusiasts who actively maintain and restore these iconic vehicles. The Mercedes-Benz Model 123 Series Workshop Service Repair Manual, a comprehensive digital resource with over 9,000 pages of detailed information, stands as an invaluable tool for owners, mechanics, and enthusiasts alike, providing an in-depth guide to the intricacies of this beloved automotive legacy.