This manual covers the BMW 850i (E31), a luxury grand tourer produced from 1989 to 1999, with this documentation specifically addressing models from 1989 to 1994. Renowned for its sleek aerodynamic design, powerful V12 M70 engine, and advanced engineering for its era, the 850i was BMW's flagship coupe. It offered exceptional driving dynamics and a luxurious interior, positioning it as a competitor to other high-end GTs. The vehicle's technical sophistication and performance capabilities made it a statement of automotive excellence.

This comprehensive workshop service manual provides detailed information for the maintenance, diagnosis, and repair of the BMW 850i. It covers mechanical, electrical, and bodywork systems, including the M70 V12 engine, automatic transmissions, suspension, brakes, and all electrical components. The manual includes procedures for routine maintenance, troubleshooting common issues, and in-depth repair guidance. Its scope is designed to assist professional technicians and dedicated enthusiasts in preserving the integrity and performance of this iconic vehicle.