This manual provides comprehensive factory service and repair information for the 1988 BMW 5 Series, specifically the 518 and 518i models (chassis code E34). Known for its renowned handling, high-quality construction, and clean aerodynamic design, the E34 generation represented BMW's commitment to driver engagement and luxury. These executive sedans, powered by the M20B18 inline 4-cylinder engine, offered a balanced chassis and a refined driving experience, positioning them as strong contenders in the luxury sedan market of their era.

This factory service repair manual is designed to assist owners, mechanics, and technicians in maintaining and repairing the BMW 518 and 518i. It covers a wide array of systems, including the powertrain, transmission, chassis, brakes, and electrical systems, along with detailed procedures for scheduled maintenance, diagnostics, troubleshooting, and component repair or rebuild. Essential technical specifications, fluid requirements, and wiring diagrams are also included, providing the necessary data for accurate and effective service.