The Datsun 240Z, produced in 1973 under the chassis code HLS30, is a celebrated inline-6 sports car renowned for its iconic sleek styling and exceptional value. This model, powered by the L24 engine, offered a compelling blend of European sports car aesthetics and performance at an accessible price point, establishing Datsun as a significant global automotive player. Its design philosophy emphasized driver engagement with its rear-wheel drive, independent suspension, and a powerful yet responsive engine. The 240Z competed effectively with established sports cars of its era, solidifying its legacy as a timeless automotive icon. This comprehensive service and repair workshop manual provides extensive coverage for all Datsun 240Z models. It details maintenance procedures, including oil changes, filter replacements, and tune-ups, alongside step-by-step repair instructions for all major mechanical and electrical components. The manual covers engine overhaul, transmission service, brake and suspension systems, and electrical diagnostics, featuring factory-style wiring diagrams and in-depth troubleshooting guides. Its purpose is to equip owners, mechanics, and technicians with the knowledge necessary for the proper maintenance, repair, and restoration of their 240Z, ensuring its continued performance and longevity.