The Porsche 928, produced from 1978 to 1995, represents a significant chapter in the marque's history, offering a front-engine, rear-wheel-drive grand tourer experience. This model, particularly the first generation spanning 1978-1991, was engineered to blend exhilarating sports car performance with refined comfort for long-distance travel, a departure from Porsche's traditional rear-engined sports cars. Its design philosophy emphasized near-perfect weight distribution through a transaxle layout, powered by a V8 engine that evolved from 4.5 liters to 5.4 liters, delivering horsepower ranging from approximately 215 to 326. Notable features included advanced suspension systems for its era, aerodynamic bodywork, and a focus on luxury appointments, distinguishing it from its competitors like the Jaguar XJ-S and Mercedes-Benz SLC. The 928 was recognized for its innovative engineering, earning the 'Import Car of the Year' award from Motor Trend in 1978.

This comprehensive service and repair manual provides detailed guidance for all gasoline engine variants of the Porsche 928, covering model years 1978 through 1994. It is an essential resource for owners, mechanics, and technicians, offering extensive coverage of all major vehicle systems, including powertrain, chassis, electrical, and body components. The manual details scheduled maintenance procedures, diagnostic troubleshooting guides, component removal and installation instructions, and critical technical specifications such as torque values and fluid requirements. With thousands of pages of detailed information, including electrical schematics and special tool identification, this manual is designed to facilitate accurate maintenance, effective troubleshooting, and thorough repairs, ensuring the longevity and optimal performance of your Porsche 928.