This comprehensive factory repair manual provides in-depth technical information for the 1990 BMW 8 Series (E31), covering all aspects of maintenance and repair. It is a valuable resource for both professional mechanics and DIY enthusiasts, offering detailed guidance on a wide range of topics, including: * **Engine and Powertrain:** The manual delves into the workings of the engine, including its electrical systems, fuel preparation and control, fuel tank and lines, radiator, and exhaust system. It also covers the intricacies of the clutch, gearbox, drive chain, and rear wheel drive system. * **Chassis and Suspension:** Discover detailed information on the steering, braking system, wheels and tires, as well as the vehicle's frame. * **Electrical and Equipment:** The manual provides comprehensive information on the general electrical equipment, instruments, and lighting systems, enabling you to diagnose and resolve electrical faults. This detailed repair manual empowers you to perform maintenance and repairs on your 1990 BMW 8 Series with confidence, ensuring a deeper understanding of your vehicle's inner workings.

The BMW 8 Series (E31) is a grand tourer that was produced by BMW from 1989 to 1999. It was the first BMW to feature a V12 engine since the 1930s, and it was also the first BMW to use a fully independent suspension system. The 8 Series was designed to compete with other luxury grand tourers such as the Mercedes-Benz S-Class Coupe and the Jaguar XJS. It was notable for its sleek, aerodynamic design, which was inspired by the BMW M1 supercar. The 8 Series was available with a variety of engines, including a 4.4-liter V8, a 5.0-liter V12, and a 5.4-liter V12. All engines were paired with a 5-speed manual or a 6-speed automatic transmission. The 8 Series was praised for its luxurious interior, its powerful engines, and its comfortable ride. However, it was also criticized for its high price and its complex design, which led to some reliability issues. Despite these criticisms, the 8 Series remains a highly sought-after collectible car, especially the rare V12 models. The 1990 Factory Repair Manual provides owners and enthusiasts with detailed information on the mechanics and repair of the E31 8 Series. This manual is a comprehensive guide that covers every aspect of the vehicle, from engine and transmission to bodywork and electrical systems. It includes detailed diagrams, illustrations, and step-by-step instructions, making it an invaluable resource for anyone who wants to maintain or repair their 8 Series.