This comprehensive Workshop Service Repair Manual provides detailed instructions for maintaining and repairing your Porsche 928, 928S, and 928S4 models from 1978 to 1993. Designed for both experienced mechanics and DIY enthusiasts, this manual covers a wide range of topics, including routine maintenance, troubleshooting, and in-depth repair procedures. From tune-ups and engine diagnostics to bodywork and electrical system repairs, you'll find everything you need to keep your Porsche running smoothly. The manual includes detailed instructions and illustrations for removal, installation, and assembly procedures, ensuring a clear understanding of every step. You'll also find detailed information on specific systems, including:

* **Fuel system**
* **Ignition system**
* **Lubrication system**
* **Exhaust system**
* **Electrical system**
* **Bodywork**

Whether you're tackling a simple tune-up or a more complex engine or transmission repair, this manual equips you with the knowledge and guidance necessary to perform the job confidently. You'll find the information and procedures to diagnose and resolve various issues while gaining valuable insights into the workings of your Porsche. With this manual at your side, you'll be able to save time and money by performing maintenance and repairs yourself, confident in your ability to achieve professional-quality results.

The Porsche 928, a grand touring coupé produced by Porsche from 1978 to 1995, was a revolutionary and ambitious vehicle that aimed to replace the iconic 911 as the flagship model. The 928 deviated significantly from the traditional Porsche formula, featuring a front-mounted engine and a transaxle design, where the gearbox is located at the rear axle. This layout, borrowed from the 914, offered balanced weight distribution and exceptional handling, making the 928 a formidable contender in its class. Power came from a 4.5-liter V8 engine, initially producing 240 hp, later upgraded to 310 hp in the 928S and 320 hp in the 928S4. The 928 also introduced numerous innovative features, including an electronically controlled automatic transmission, power steering, and a sophisticated suspension system with self-leveling rear axle, making it a luxurious and refined driving experience.

The 928's legacy is as complex as its engineering. While hailed for its performance, refinement, and modern design, it never achieved the cult status of the 911, possibly due to the initial skepticism towards the front-engine layout and the high price tag. Despite this, the 928 garnered critical acclaim and won numerous accolades, including “Car of the Year” by European Car magazine in 1978 and the coveted “Best All-Round Performance Car” by Motor Trend in 1979. Today, the 928 is recognized as a significant milestone in Porsche's history, representing a bold departure from tradition and a testament to the brand's relentless pursuit of technical innovation and automotive excellence. Its unique combination of performance, luxury, and engineering ingenuity has secured its place among automotive enthusiasts and collectors, making it an increasingly sought-after and valuable classic car.