The Porsche 928, produced from 1978 to 1995, represents a significant departure from the brand's established rear-engine sports car formula. As Porsche's front-engine, V8-powered grand tourer, it was engineered to offer a blend of high-performance capabilities and luxurious comfort, intended to compete with established European GTs. Its innovative transaxle layout, featuring a rear-mounted transmission and differential, contributed to an optimal 50/50 weight distribution, enhancing handling dynamics. Throughout its production, the 928 evolved through various iterations, including the 928S, S4, and GTS, each featuring increasingly powerful V8 engines ranging from 4.5 to 5.4 liters, advanced fuel injection systems, and refinements in suspension, braking, and interior appointments, solidifying its reputation for sophisticated engineering and potent grand touring.

This comprehensive workshop manual provides essential information for the maintenance, repair, and diagnostics of the Porsche 928 series vehicles from 1978 to 1995. It covers a wide array of systems, including detailed procedures for the V8 engine variants, fuel systems (CIS and EFI), cooling, exhaust, manual and automatic transmissions, and the unique transaxle design. The manual also details chassis components such as suspension, steering, and brakes, as well as the complete electrical system with wiring diagrams. With over 4000 pages of factory-level detail, this English-language resource is invaluable for Porsche 928 owners, independent repair shops, and professional technicians seeking to preserve the performance and integrity of these iconic grand tourers, offering guidance on everything from routine servicing to major component overhauls and troubleshooting complex issues.

The Porsche 928, produced from 1978 to 1995, represents a significant departure from the brand's established rear-engine sports car formula. As Porsche's front-engine, V8-powered grand tourer, it was engineered to offer a blend of high-performance capabilities and luxurious comfort, intended to compete with established European GTs. Its innovative transaxle layout, featuring a rear-mounted transmission and differential, contributed to an optimal 50/50 weight distribution, enhancing handling dynamics. Throughout its production, the 928 evolved through various iterations, including the 928S, S4, and GTS, each featuring increasingly powerful V8 engines ranging from 4.5 to 5.4 liters, advanced fuel injection systems, and refinements in suspension, braking, and interior appointments, solidifying its reputation for sophisticated engineering and potent grand touring.

This comprehensive workshop manual provides essential information for the maintenance, repair, and diagnostics of the Porsche 928 series vehicles from 1978 to 1995. It covers a wide array of systems, including detailed procedures for the V8 engine variants, fuel systems (CIS and EFI), cooling, exhaust, manual and automatic transmissions, and the unique transaxle design. The manual also details chassis components such as suspension, steering, and brakes, as well as the complete electrical system with wiring diagrams. With over 4000 pages of factory-level detail, this English-language resource is invaluable for Porsche 928 owners, independent repair shops, and professional technicians seeking to preserve the performance and integrity of these iconic grand tourers, offering guidance on everything from routine servicing to major component overhauls and troubleshooting complex issues.