The Porsche 928, produced from 1977 to 1995, represents a significant chapter in the marque's history as a front-engine, rear-wheel-drive grand tourer. Engineered with a focus on balanced weight distribution through its innovative transaxle layout, the 928 offered a luxurious and high-performance driving experience, distinguishing itself from the iconic 911. Its V8 engine, evolving from 4.5 liters to 5.4 liters over its production run, delivered robust power, complemented by advanced features for its time, including optional anti-lock braking systems and driver's side airbags on later models. This model was recognized with the 1978 European Car of the Year award, underscoring its groundbreaking design and engineering quality, and was targeted at affluent buyers seeking a comfortable, stylish, and capable grand touring automobile.

This comprehensive service manual provides complete repair and maintenance information for all Porsche 928 models from 1977 to 1995, covering chassis codes 928 through 928 GTS. Within these pages, you will find detailed guidance on powertrain systems, including engine diagnostics and rebuilds, as well as transmission service for both manual and automatic variants. The manual also thoroughly addresses chassis components, electrical systems with detailed wiring diagrams, and body and interior repair. It outlines routine maintenance procedures, troubleshooting steps for common issues, and instructions for major repairs and component replacements, ensuring owners and technicians have the necessary knowledge to maintain and restore this exceptional vehicle.