The BMW 518 and 518i, part of the E28 generation produced from 1981 to 1987, represent BMW's commitment to driver-focused executive sedans. These models, powered by the M10B18 inline 4-cylinder engine, offered a blend of refined engineering and engaging driving dynamics that defined the brand. As an entry point into BMW's premium lineup, the 518 and 518i emphasized build quality and performance, making them notable competitors in their segment. The E28 chassis itself was a significant evolution, known for its aerodynamic improvements and enhanced interior comfort.

This factory service repair manual provides comprehensive guidance for the BMW 518 and 518i models. It covers essential maintenance procedures, detailed troubleshooting steps, and in-depth repair instructions for all major vehicle systems, including the engine, transmission, brakes, suspension, and electrical systems. Technical specifications, diagnostic procedures, and information on common wear items are also included. This manual is an indispensable resource for owners, mechanics, and technicians seeking to maintain, diagnose, and repair these vehicles to factory standards.