The BMW 8 Series e31 1990 Factory Service Repair Manual provides comprehensive information for maintaining and repairing your vehicle. This manual, designed for mechanics and serious DIY enthusiasts, contains detailed instructions and diagrams covering a vast array of topics. From fundamental maintenance procedures to intricate repair techniques, it offers a complete guide for keeping your BMW running smoothly.

Dive into sections covering lubrication and maintenance schedules, ensuring your car receives the proper care. Gain a thorough understanding of engine management and driveability systems, troubleshooting potential issues with ease. Detailed information on the engine, ignition system, fuel system, cooling system, exhaust system, and emission controls helps you address any concerns with these critical components.

The manual delves into the intricacies of both manual and automatic transmissions and clutches, guiding you through repairs and adjustments. Learn about driveshaft and final drive systems, keeping your power transfer efficient. Comprehensive coverage of brakes, suspension, and steering systems empowers you to tackle maintenance and repairs with confidence.

Explore the body and interior sections, gaining insights into restoring and repairing both the exterior and interior of your BMW. Finally, a detailed electrical system section provides valuable information for diagnosing and resolving electrical problems. With its comprehensive index, navigating the manual and finding the information you need is a breeze.

The BMW 8 Series, internally designated as the E31, was a luxury grand tourer produced by BMW from 1989 to 1999. It was the first BMW to feature a V12 engine since the 1930s, and was an attempt by the German automaker to reclaim its position as a maker of highly desirable, high-performance luxury vehicles. Designed by Claus Luthe, the 8 Series was a groundbreaking design, featuring a sleek, aerodynamic body with a distinctive sloping roofline reminiscent of the E24 6 Series. This aerodynamic profile, coupled with its advanced technology, made the 8 Series one of the most technologically advanced and aerodynamic cars of its time.

The E31 8 Series was powered by a range of engines, including the naturally aspirated 5.0-liter V12 in the 850i, a turbocharged 5.0-liter V12 in the 850i, and a 4.4-liter V8 in the 840i. The 850i, with its powerful V12 engine, quickly gained a reputation for its smooth performance and luxurious appointment. The 8 Series also featured a number of advanced technologies for its time, including an electronically controlled suspension, ABS brakes, traction control, and a digital instrument cluster. Despite its technological advancements and sleek styling, the E31 8 Series was not a commercial success for BMW. Production ended in 1999, with just over 30,000 units built. However, it has since become a cult classic, highly regarded by enthusiasts for its performance, styling, and luxurious appointments.