This comprehensive workshop repair service manual is specifically designed for the 1977 to 1985 Mercedes-Benz Typ-123 (300D Turbodiesel Sedan), providing you with everything you need to effectively repair, maintain, rebuild, refurbish, or restore your vehicle. You will find detailed information on all diagnostic and repair procedures for your 1977-1985 Mercedes-Benz Typ-123 (300D Turbodiesel Sedan). This manual contains all the information professional technicians and mechanics use, ensuring you have access to the same quality information. The manual includes a vast array of topics, such as general information, engine systems, transmission and driveline components, suspension and brakes, steering, restraint systems, bodywork, air conditioning, electrical systems, and a comprehensive maintenance section. You'll find high-quality photos, illustrations, and diagrams throughout the manual, making it easy to understand and follow the detailed instructions. This manual is complete and intact, ensuring you have all the information you need to tackle any repair or maintenance project. The manual's content is organized into a logical table of contents, including an alphabetical index for easy navigation. With this manual by your side, you can confidently take on any repair or maintenance project for your 1977-1985 Mercedes-Benz Typ-123 (300D Turbodiesel Sedan).

The 1977-1985 Mercedes-Benz Typ-123 300D Turbodiesel Sedan, affectionately known as the "W123," was a revolutionary car in its time. This robust, fuel-efficient, and reliable sedan was a testament to Mercedes-Benz's engineering prowess. It was the first production Mercedes-Benz to feature a turbocharged diesel engine, the OM617, a 3.0-liter inline-five unit that produced a respectable 88 hp and 133 lb-ft of torque. The turbodiesel engine, coupled with a five-speed manual transmission, provided a unique combination of power and fuel economy, allowing the 300D to achieve an impressive 28 mpg. The W123's body-on-frame construction and heavy-duty suspension components made it an extremely durable and long-lasting vehicle, capable of handling rough roads and harsh conditions with ease.

Beyond its robust mechanicals, the 300D offered a surprisingly comfortable and refined driving experience. The interior, though spartan by today's standards, was well-built and functional, featuring durable materials and a focus on practicality. The car's compact size and excellent visibility made it a joy to drive in congested city streets, while its comfortable ride and stable handling allowed for effortless cruising on the open road. The 300D's reputation for reliability and longevity has solidified its place as a sought-after classic car, particularly among enthusiasts who appreciate its combination of practicality, performance, and timeless design. While the W123 was initially offered in various configurations, including wagons and coupes, the 300D sedan remains the most popular and iconic model of the series, representing an enduring legacy of German engineering and design excellence.