This comprehensive workshop service repair manual provides in-depth information on maintaining, assembling, disassembling, and servicing your Porsche 928 (S, S4, GT, GTS), covering models from 1978 to 1994. It contains detailed instructions and diagrams for a wide range of maintenance and repair procedures. Volume 1 and 1A delve into the engine, covering topics such as technical data, maintenance procedures, self-diagnosis, engine components (crankcase, crankshaft, pistons, cylinder head, valve drive), lubrication, and cooling systems. It also includes sections on fuel supply, electronic fuel injection, fuel mixture, exhaust system and emissions controls, starter, power supply, and the ignition system, along with DME diagnosing and troubleshooting. Volume 2 and 3 concentrate on the transmission, covering the clutch, controls, torque converter, manual and automatic transmission components, gears, shafts, valve body, differential, and transaxle system. It also includes troubleshooting guides for the PSD system. Volume 4 focuses on the chassis, heating, and air conditioning systems, covering front and rear suspension components, wheels, tires, alignment, anti-lock braking system, brakes (mechanical and hydraulic), steering, heater, and air conditioning systems. Volume 5 and 6 cover the body and electrical systems, providing information on body components (general, front section, center section, rear section, lids, and doors). It also includes detailed wiring diagrams and troubleshooting procedures for the alarm system. Volume 7 provides comprehensive wiring diagrams for all model years, offering a valuable resource for understanding and diagnosing electrical issues. This extensive manual is an essential tool for anyone who wants to perform their own maintenance or repairs on a Porsche 928.

The Porsche 928, produced from 1978 to 1995, was a groundbreaking grand touring car that aimed to replace the iconic 911 as Porsche's flagship model. Designed by Wolfgang Möbius, the 928 boasted a revolutionary front-mounted, water-cooled V8 engine, a departure from the traditional rear-engine layout of its predecessors. This layout offered exceptional handling and a smooth, comfortable ride, making the 928 a true luxury sports car. It featured a sophisticated independent suspension system, powerful disc brakes, and a spacious interior with a luxurious leather-trimmed cabin. The 928 was available in various trims, including the standard model, the performance-focused S and S4, the limited-production GT, and the top-of-the-line GTS. Each iteration offered unique engine upgrades, aesthetic enhancements, and performance features, catering to a broad range of discerning drivers. Despite its innovative design and technical prowess, the 928 never fully eclipsed the 911 in popularity. However, it gained a loyal following for its refined driving experience, luxurious amenities, and timeless elegance. The 928's distinctive styling, characterized by a long hood, sloping roofline, and distinctive pop-up headlights, remains a design icon, reflecting the spirit of its era. It has earned its place in automotive history as a significant step forward in Porsche's evolution, showcasing the brand's commitment to innovation and performance. For passionate owners and enthusiasts, a well-maintained 928 remains a captivating and rewarding driving experience, showcasing the engineering excellence and timeless appeal of this legendary grand tourer.