The 1979 Datsun 810 represents a significant entry in the mid-size to full-size luxury segment, offering a blend of smooth ride quality, spacious interiors, and reliable Japanese engineering. Available as a Sedan, Hardtop, or Wagon, and often referred to by its chassis code, the A810 series, this model competed with established American and European offerings. It was known for its comfortable amenities and was powered by a robust 2.4-liter inline-six engine, delivering approximately 125-135 horsepower. Datsun's reputation for building dependable and well-engineered vehicles was well-established by this period, making the 810 a compelling choice for discerning buyers seeking a refined and durable automobile.

This comprehensive service and repair manual provides detailed guidance for the full service, repair, maintenance, rebuild, refurbish, and restoration of the 1979 Datsun 810. It covers all essential systems, including the engine, fuel, transmission, drivetrain, suspension, steering, brakes, electrical system, body, chassis, and heating and air conditioning. The manual includes step-by-step procedures for routine maintenance, troubleshooting common faults, component replacement, and rebuilding major units, along with detailed wiring diagrams and calibration instructions. Its purpose is to equip owners, mechanics, and technicians with the necessary knowledge to maintain and repair the vehicle effectively, ensuring its longevity and optimal performance.