The Porsche 928 1985 Repair Service Manual is a comprehensive guide designed to assist both professional technicians and knowledgeable DIY mechanics in maintaining and repairing this classic sports car. This manual is tailored to individuals possessing a foundation in electrical and mechanical principles, providing detailed information for a wide range of repair and maintenance procedures. The manual delves into the intricacies of the 928, offering step-by-step instructions covering everything from routine maintenance to complex engine and transmission repairs. It includes critical specifications, detailed illustrations, and clear explanations for disassembly, assembly, cleaning, and reinstallation procedures. This manual is a valuable resource for any owner seeking to perform their own repairs or gain a deeper understanding of the 928's workings. Its comprehensive coverage and straightforward approach empowers owners to confidently tackle a wide variety of maintenance and repair tasks, ensuring their 928 remains in peak condition.

The Porsche 928, a grand tourer produced from 1977 to 1995, was a revolutionary model for the German automaker, marking a departure from their traditional air-cooled rear-engined layout. The 1985 model year, the focus of this repair service manual, represents a significant point in the 928's evolution. Introduced in 1980, the "Series 2" 928 featured numerous improvements, including revised styling with flush-mounted headlights, a redesigned interior with enhanced ergonomics, and a powerful 4.5-liter V8 engine producing 237 horsepower. The 1985 model year saw further refinements, notably the introduction of a new 5-speed automatic transmission option alongside the existing 5-speed manual gearbox. The 928's distinctive design, with its sleek coupe body and prominent front spoiler, combined with its advanced technology and impressive performance, cemented its position as a formidable competitor in the luxury grand tourer segment. The 1985 Porsche 928, a testament to German engineering prowess, boasted a sophisticated front-engine, rear-wheel-drive layout. This configuration provided superior weight distribution and handling characteristics, contributing to the car's renowned balance and agility. The 4.5-liter V8 engine, crafted with precision and utilizing Bosch K-Jetronic fuel injection, delivered smooth and responsive power delivery. The powerful engine, coupled with the advanced suspension system featuring independent MacPherson struts at the front and a multi-link setup at the rear, provided a combination of comfortable ride quality and exceptional handling prowess. The 1985 928's technical advancements and refined driving experience solidified its standing as a true performance masterpiece, appealing to discerning drivers seeking a blend of luxury and thrilling performance. The repair service manual, a vital resource for maintaining and repairing this complex and sophisticated machine, offers comprehensive guidance for both professional technicians and dedicated enthusiasts.