This manual covers the Porsche 928, a luxury grand tourer produced from 1978 to 1995. Known for its innovative front-engine V8 layout and rear transaxle, the 928 offered a unique blend of performance and comfort, setting it apart in Porsche's lineup. Over its production run, spanning the First Generation (1978-1986) and Second Generation (1987-1995), it evolved with larger displacement V8 engines, improved aerodynamics, and advanced features like Anti-lock Braking System (ABS). The 928 was recognized with the European Car of the Year award in 1978, highlighting its engineering prowess and distinctive market position.

This comprehensive factory service manual provides detailed procedures for the maintenance, repair, and troubleshooting of all Porsche 928 models, covering chassis codes 928, 928S, 928S4, 928GT, and 928GTS. It encompasses a wide range of systems, including the engine, transmission, drivetrain, suspension, steering, brakes, and electrical systems. With over 2000 pages of information, this manual offers step-by-step instructions for routine maintenance, major repairs, diagnostics, and component replacement, making it an essential resource for owners, mechanics, and technicians dedicated to preserving the performance and integrity of this iconic vehicle.