This comprehensive service and repair manual provides detailed instructions and technical specifications for all 1977-1995 Porsche 928 models. It includes everything you need to perform maintenance and repairs on your vehicle, from basic tasks like oil changes and spark plug replacements to more complex procedures like engine and transmission overhauls. The manual is organized by system, covering topics such as: * **General Maintenance:** Learn about routine maintenance procedures for your 928, including recommended service intervals and fluid specifications. * **Troubleshooting:** Identify and diagnose potential problems with your vehicle using detailed troubleshooting charts and procedures. * **Engine Service / Repair:** Gain expertise in all aspects of engine maintenance and repair, including cylinder head removal and rebuild, valve adjustments, and timing belt replacement. * **Transmission Service / Repair:** Learn how to service and repair your 928's transmission, including clutch adjustments, fluid changes, and gear replacement. * **Brake System:** Understand the intricacies of your 928's brake system, including caliper and rotor replacement, brake pad installation, and troubleshooting common brake issues. * **Electrical System:** Get in-depth knowledge of your 928's electrical system, covering topics like wiring diagrams, component testing, and troubleshooting electrical faults. * **Suspension:** Learn how to service and repair your 928's suspension, including shock absorber replacement, spring installation, and alignment adjustments. * **Periodic Lubrication:** Follow detailed instructions for proper lubrication of all critical components, ensuring optimal performance and longevity. * **Steering:** Understand the workings of your 928's steering system, including power steering fluid changes, steering linkage adjustments, and rack and pinion repair. * **Cooling System:** Master the complexities of your 928's cooling system, learning about radiator replacement, thermostat installation, and troubleshooting overheating issues. * **Fuel Injection / Fuel System:** Get expert guidance on your 928's fuel injection system, covering topics like fuel pump replacement, injector cleaning, and troubleshooting fuel delivery problems. * **Emission System:** Understand the requirements of your 928's emission system, including catalytic converter replacement, oxygen sensor diagnostics, and troubleshooting emissions issues. * **Heater / Air Conditioning:** Learn how to service and repair your 928's heating and air conditioning system, including refrigerant charging, blower motor replacement, and troubleshooting climate control problems. * **Engine Control System:** Gain insight into the operation of your 928's engine control system, including sensor diagnostics, troubleshooting codes, and programming procedures. * **Chassis / Body:** Get detailed instructions on repairing and maintaining your 928's chassis and body, including rust repair, panel replacement, and structural reinforcement. * **Restraint System:** Learn about the workings of your 928's safety systems, including airbag component replacement, seatbelt adjustments, and troubleshooting safety system issues. * **Interior:** Discover how to service and repair your 928's interior, including upholstery replacement, trim repairs, and dashboard component replacement. * **Differential / Drive Axle:** Gain expertise in the maintenance and repair of your 928's differential and drive axle, covering topics like gear oil changes, differential bearing replacement, and axle shaft repair. This comprehensive manual is packed with step-by-step instructions, detailed diagrams, and clear illustrations, making it easy to understand even complex repair procedures. Whether you're a seasoned mechanic or a DIY enthusiast, this service manual is an invaluable resource for keeping your Porsche 928 running smoothly for years to come.

The Porsche 928 is a grand touring car produced by Porsche from 1977 to 1995. It was the first front-engined, water-cooled Porsche production car, breaking with the traditional rear-engined layout of the 911. The 928 was intended to be the successor to the 911, although in the end, the two models co-existed and were even sold alongside each other for a period of time. It was a luxurious and sophisticated car with a powerful V8 engine, independent suspension on all four wheels, and a sophisticated transaxle gearbox. The 928 was praised for its handling, performance, and comfort, and it was a popular choice among wealthy individuals and car enthusiasts. The 928 came in various iterations during its lifespan, undergoing multiple revisions and updates. Initial models featured a 4.5-liter V8 engine producing around 237 horsepower. Over time, engine displacements were enlarged to 4.7 and 5.0 liters. Later models, such as the 928 S4, offered even more power thanks to a 316-horsepower engine. The 928 was a technological marvel for its time, boasting features like a Bosch Motronic engine management system, aluminum body panels, and an innovative transaxle design that helped improve handling and weight distribution. It was also a visually striking car, with its sleek, aerodynamic design that was a departure from other Porsche models. Although the 928 didn't quite achieve the same level of popularity as the 911, it remains a highly regarded and sought-after car by enthusiasts today, recognized for its unique engineering and blend of luxury and performance.