The Datsun 240Z, chassis code HLS30, represents a significant chapter in automotive history, produced from 1969 to 1973. This inline-6 SOHC sports car, powered by the L24 engine, offered approximately 150-151 horsepower and was renowned for its sleek styling, inspired by European GT cars, and its accessible performance. The 240Z was a pioneering affordable Japanese sports car that captured the attention of enthusiasts worldwide, making it a beloved classic for owners, DIY mechanics, and restoration specialists. Its design philosophy focused on delivering an engaging driving experience, making it a highly sought-after vehicle for its era and beyond. This comprehensive workshop service repair manual in English provides detailed information for all models and repairs of the Datsun 240Z. It covers a vast array of systems, including the engine (mechanical and electrical aspects, repair, and timing), transmission, drivetrain, steering, suspension, brakes, body, HVAC, and electrical systems, complete with wiring diagrams. The manual includes procedures for routine maintenance, tune-ups, general repairs from A-Z, component removal and installation, and diagnostic troubleshooting, supported by numerous detailed pictures and diagrams. Its purpose is to empower owners and technicians with the knowledge needed to maintain and repair the vehicle effectively, ensuring its longevity and optimal performance.