This comprehensive service manual provides detailed instructions and step-by-step diagrams for all workshop procedures related to the Porsche 928, S, S4, GT, and GTS models. It is the same manual used by professional repair workshops and covers a vast array of topics, making it an invaluable resource for both experienced mechanics and DIY enthusiasts. The manual covers everything from basic maintenance tasks like changing spark plugs to complex procedures like engine rebuilds. It includes detailed information on engine components, transmission systems, chassis construction, bodywork, heating, ventilation and air conditioning systems, electrical systems, front and rear wheel suspension, maintenance routines, self-diagnosis techniques, braking systems, steering components, automatic and manual transmission systems, ignition systems, wheels, and tires. The manual is packed with numerous illustrations and diagrams to guide you through each step of every repair process. With its clear and concise instructions, this manual makes even the most challenging repairs accessible to individuals of all skill levels.

The Porsche 928 is a grand touring car that was produced by Porsche from 1977 to 1995. It was designed to be a successor to the Porsche 911, and it featured a front-mounted engine and rear-wheel drive. The 928 was the first Porsche to be designed with a water-cooled engine, and it was also the first Porsche to feature a transaxle transmission. The 928 was a technological marvel, boasting features like a four-wheel independent suspension, power steering, and four-wheel disc brakes. In 1980, the 928 was awarded the prestigious "Car of the Year". The 928 model line saw a number of variants throughout its production run, each with its own unique characteristics and performance capabilities. The 928 S, introduced in 1980, featured a more powerful and fuel-efficient engine. The S4, which followed in 1984, further enhanced the performance with a larger and more powerful engine. The 928 GT, introduced in 1992, came with updated styling and performance upgrades. Finally, the 928 GTS, released in 1993, was the most powerful and luxurious iteration of the car, featuring a 5.4-liter engine and an array of luxurious equipment. Each of these variants has its own set of intricacies and specifications, making a comprehensive repair manual for the Porsche 928 a valuable resource for owners and mechanics alike.