This comprehensive Mercedes-Benz W123 280E, 280S, and 280SE Workshop Repair Service Manual provides detailed instructions and technical information for maintaining and repairing your vehicle, covering all models, engines, trim levels, and transmissions produced between 1976 and 1985. The manual is a complete and intact resource, containing the same information used by professional service shops. It offers a wealth of knowledge for both experienced mechanics and DIY enthusiasts, streamlining repair and maintenance processes and saving you valuable time and money. The manual's detailed content includes general maintenance procedures, troubleshooting guides, engine service and repair instructions, transmission service and repair information, brake system specifics, wiring diagrams, and electrical system explanations. You'll also find comprehensive information on the suspension, periodic lubrication, steering, cooling system, fuel injection and fuel system, emission system, heater and air conditioning, engine control system, chassis and body, restraint system, interior details, differential and drive components, and axle assembly. The manual features detailed substeps for each repair procedure, enhancing clarity and providing essential context. Notes, cautions, and warnings are strategically placed throughout each chapter, highlighting critical information for safety and successful repairs. Every repair procedure is presented with numbered instructions, guiding you through each step systematically. To facilitate easy navigation, illustrations are clearly numbered, allowing for quick cross-referencing between instructions and visuals. Detailed illustrations, drawings, and photographs accompany every procedure, ensuring visual clarity and understanding. Enlarged insets emphasize critical parts, allowing for thorough examination and identification. A well-organized, numbered table of contents makes finding the relevant information quick and efficient. Troubleshooting and electrical service procedures are combined with detailed wiring diagrams, simplifying the diagnosis and repair of electrical issues.

The Mercedes-Benz W123, produced from 1976 to 1985, is a legendary mid-size sedan known for its robust build, exceptional engineering, and enduring reliability. Introduced as the successor to the W114/W115 "Stroke Eight" models, the W123 embodied the essence of German automotive excellence. Available in a wide range of body styles, including sedans, coupes, and wagons, the W123 offered diverse configurations to cater to various needs. The 280E, 280S, and 280SE variants, powered by a 2.8-liter, 6-cylinder engine, were highly sought-after for their smooth performance and impressive fuel economy. The 280E featured a fuel-injected engine, while the 280S and 280SE were equipped with naturally aspirated carbureted engines, offering a more traditional driving experience. Regardless of the engine choice, the W123 models boasted a comfortable and spacious interior, emphasizing practicality and durability. The W123's success was built on a foundation of innovative engineering. The car's rigid unibody construction, combined with independent suspension on all four wheels, delivered exceptional handling and ride quality. Its robust and long-lasting mechanical components were meticulously engineered to withstand the test of time, making the W123 a favorite among both enthusiasts and fleet owners. Its reputation for reliability and longevity has earned it a place in automotive history as a true testament to German engineering excellence. The W123 proved to be a global success, selling over 2.7 million units worldwide, establishing its enduring legacy as one of the most iconic and respected Mercedes-Benz models of all time. Today, the W123 remains a sought-after classic, appreciated for its timeless design, robust construction, and the enduring appeal of its driving experience.