This comprehensive Mercedes Benz W115 240D service repair manual covers all models from 1973 to 1976. It is a complete and detailed resource for both the experienced mechanic and the do-it-yourself enthusiast. The manual guides you through every repair procedure with step-by-step instructions, numerous illustrations, drawings, and photos. Detailed substeps expand on the repair procedure information, and notes, cautions, and warnings pinpoint critical information throughout. Bold figure numbers allow you to quickly match illustrations with instructions, and enlarged insets help you identify and examine parts in detail. A numbered table of contents ensures easy navigation so you can find the information you need quickly. The manual also includes extensive troubleshooting and electrical service procedures combined with detailed wiring diagrams, making it easy to diagnose and repair any electrical problems. The manual covers a wide range of topics including: general maintenance, troubleshooting, engine service and repair, transmission service and repair, brake system, wiring diagrams, electrical system, suspension, periodic lubrication, steering, cooling system, fuel injection, fuel system, emission system, heater and air conditioning, engine control system, chassis and body, restraint system, interior, differential and drive, and axle.

The Mercedes-Benz W115 240D, a symbol of German engineering and elegance from the 1970s, was a groundbreaking car for its time. Introduced in 1973, the W115 240D represented the first generation of the "Strich Acht" series, named for its distinctive straight-eight engine. This model was a testament to Mercedes-Benz's commitment to diesel technology, offering fuel efficiency and durability in a time when gasoline engines dominated the market. The 240D was powered by a 2.4-liter four-cylinder diesel engine, producing a modest 65 horsepower yet delivering an impressive fuel economy of around 30 miles per gallon. Its sturdy body, featuring a conservative yet refined design, combined with a comfortable interior and a robust suspension system, made it a popular choice for both private and commercial use. The W115 240D, despite its modest power output, was known for its reliable performance and longevity. The car's simplicity and well-engineered components ensured that maintenance was relatively straightforward, with much of the work easily accomplished by even novice mechanics. This made it a particularly appealing option for those who valued practicality and low running costs. The W115 240D's enduring legacy as a reliable and frugal car is further cemented by its iconic status among vintage car enthusiasts. Today, these cars are often sought after by collectors and classic car aficionados who appreciate their timeless design, remarkable durability, and the historical significance of Mercedes-Benz's pioneering foray into the diesel car market.