The BMW 520i, chassis code E34, represents the executive sedan offering from BMW during the 1988 to 1996 production years. This generation, known for its robust build quality and driver-focused engineering, featured a refined inline 6-cylinder engine, typically the M50B20 displacing 1990 cc, producing approximately 150 PS. It competed in the mid-size luxury sedan segment, emphasizing balanced handling, a smooth ride, and responsive performance, building upon BMW's legacy of creating dynamic driving machines. The E34 was a significant evolution, offering improved aerodynamics and chassis dynamics over its predecessor, solidifying BMW's position in the competitive luxury market.

This comprehensive workshop service and repair manual covers the BMW 520i models from 1988 to 1991. It provides detailed information on all major vehicle systems, including engine mechanicals, fuel and ignition systems, manual and automatic transmissions, drivetrain, suspension, steering, braking, and electrical systems. The manual includes procedures for routine maintenance, engine and transmission repair, brake system servicing, suspension and steering work, and electrical troubleshooting. It also offers technical specifications, diagnostic procedures, torque values, and lists of special tools required for various tasks, enabling owners and technicians to effectively maintain, diagnose, and repair their vehicles.