The BMW 850i (E31 chassis), produced from 1989 to 1994, represents a pinnacle of luxury grand touring engineering from its era. This model, a successor to the 6 Series, was designed for affluent buyers seeking a blend of high performance, sophisticated comfort, and avant-garde design. It is distinguished by its iconic V12 M70 engine, displacing 5.0 liters and producing 300 horsepower, coupled with advanced features for its time, including a low drag coefficient and extensive use of innovative materials. The 850i exemplifies BMW's commitment to driver engagement and technological prowess, setting a benchmark in the competitive luxury performance segment.

This comprehensive workshop service repair manual provides extensive coverage for the BMW 850i (E31) models from 1989 through 1994. It details maintenance procedures, troubleshooting guides, technical specifications, and repair instructions for all major systems, including the V12 engine, transmission, drivetrain, suspension, brakes, and electrical systems. The manual is designed to assist owners, mechanics, and technicians in maintaining the vehicle's optimal performance and longevity, offering step-by-step guidance, diagnostic procedures, and detailed wiring diagrams, ensuring a thorough understanding and capability for servicing this complex luxury grand tourer.