This manual covers the BMW 520 and 520i models, chassis code E34, produced between 1988 and 1991. As part of BMW's esteemed 5 Series executive sedan lineup, these vehicles are recognized for their refined engineering, driver-focused dynamics, and robust build quality. The 520i, equipped with the M20B20 inline 6-cylinder engine, offered a balance of performance and efficiency, making it a popular choice in European markets. This generation of BMW is celebrated for its sophisticated design and the driving pleasure it provides, solidifying its reputation as a premium automobile.

This comprehensive workshop manual provides detailed information for the maintenance, diagnosis, and repair of your BMW 520 / 520i (E34). It covers all major systems, including engine mechanicals, fuel and ignition systems, transmissions (manual and automatic), suspension, steering, brakes, and the complete electrical system. You will find step-by-step procedures for routine maintenance, in-depth troubleshooting guides, overhaul instructions, technical specifications, and essential wiring diagrams. This manual is an indispensable resource for owners, technicians, and mechanics aiming to preserve the performance and longevity of these vehicles.