This comprehensive Mercedes-Benz W123 Workshop Service Repair Manual provides you with everything you need to confidently repair, maintain, rebuild, refurbish, or restore your vehicle. It contains detailed instructions, illustrations, diagrams, specifications, and wiring schematics, offering step-by-step guidance for all repair procedures, from simple to complex. This is the same manual used by technicians and mechanics in dealerships and garages worldwide, ensuring you have access to the most accurate and up-to-date information. The manual covers a wide range of topics, including engine overhaul and rebuilding, brake systems, sunroof maintenance, timing belt replacement, trouble code identification, wiring diagrams, troubleshooting and diagnostics, computer diagnostic trouble tree charts, engine performance analysis, front end alignment procedures, suspension repair, transmission removal and installation, air conditioning service and capacities, transmission in-car servicing, computer diagnostic codes, firing orders, detailed specifications for every model, factory maintenance schedules and charts, serpentine belt routing diagrams, timing belt service procedures, brake servicing procedures, driving concerns, complete torque specifications, U-joint and CV-joint service procedures, repair procedures, complete wiring diagrams, hundreds of illustrations, and vacuum diagrams. This meticulously organized manual is fully indexed and bookmarked by topic, allowing you to quickly find the information you need. Its search function enables you to easily navigate through every chapter, and you can print the entire manual or select specific pages. The detailed diagrams and pictures can be zoomed in on to ensure every part is clearly visible.

The Mercedes-Benz W123 is a highly regarded mid-size luxury car produced by the German automaker from 1976 to 1985. This model served as the successor to the W114/W115 series and became a popular choice for its emphasis on durability, reliability, and understated elegance. The W123 range offered a diverse selection of body styles, including sedans, coupes, station wagons, and even a rare pickup truck variant. Notably, the W123 introduced a robust, unibody construction, considered groundbreaking in its time, which contributed to its exceptional safety and longevity. This platform also featured a range of powerful and efficient petrol and diesel engines, catering to varied driver preferences and driving conditions. The W123's design, with its distinctive, boxy lines and prominent grille, exuded a timeless appeal that continues to turn heads even today. Beyond its aesthetics, the W123 was renowned for its engineering excellence. The car's independent suspension system provided a comfortable ride while delivering responsive handling, a crucial factor for its intended market of affluent professionals and families. Features like a spacious and well-appointed interior, along with advanced safety features for its era, such as a crumple zone and a robust front and rear suspension, further reinforced its reputation as a well-engineered and reliable car. The W123's enduring popularity is a testament to its combination of style, performance, and lasting quality. Even today, the W123 remains a sought-after classic car, appreciated for its timeless design, unparalleled durability, and enduring legacy as a symbol of German engineering prowess.