This comprehensive Mercedes-Benz W123 300D Workshop Service Repair Manual is your ultimate guide to maintaining and repairing your vehicle. Covering model years 1976 through 1985, this manual provides detailed instructions and technical specifications for every aspect of your car. From engine and transmission to bodywork and electrical systems, you'll find in-depth information on troubleshooting, repair procedures, and component replacement. This manual is designed for both professional mechanics and DIY enthusiasts, offering clear diagrams, step-by-step instructions, and valuable insights into the intricacies of your Mercedes-Benz W123 300D.

The Mercedes-Benz W123 300D, produced from 1976 to 1985, is a testament to German engineering and a classic example of the robust and reliable vehicles Mercedes-Benz is known for. This model, part of the W123 series, was a departure from the previous generation, introducing a more modern and aerodynamic design while maintaining the brand's reputation for durability and quality. The 300D was powered by a 3.0-liter inline-five diesel engine, known for its fuel efficiency and surprising power for a diesel. It offered a comfortable and spacious interior, featuring features like a comfortable seating configuration, a well-equipped dashboard, and quality materials. The W123 300D was available in various body styles, including sedans, coupes, wagons, and even a rare cabriolet. Beyond its practical nature, the W123 300D holds a special place in automotive history for its lasting impact. Its robust construction and reliable mechanics made it a popular choice for taxi services and commercial fleets, establishing a reputation for longevity and resilience. The W123 series, including the 300D, is often praised for its timeless design, with its clean lines and functional aesthetics continuing to appeal to enthusiasts. The combination of fuel efficiency, reliability, and practicality made the W123 300D a widely respected vehicle that continues to be sought after by collectors and those appreciating classic German automotive engineering. The 300D is a prime example of why the W123 series is considered a benchmark for automotive excellence and continues to be admired decades after its production ceased.