This manual covers the BMW 525i (E28) from 1986, a luxury mid-size sedan renowned for embodying BMW's 'Ultimate Driving Machine' ethos. Known for its balanced chassis dynamics and smooth inline-six engines, the 525i was a strong contender in its segment, appealing to affluent professionals seeking performance and engineering quality. The E28 generation, produced from 1981 to 1988, refined the angular styling of its predecessor and introduced technical advancements, with the 525i model offering a compelling blend of the potent M30 engine and accessible luxury. This vehicle was frequently recognized for its exceptional handling, braking, and steering feel, solidifying its reputation for driving dynamics.

This Factory Authorized Service and Repair Workshop Manual provides comprehensive guidance for the BMW 525i (E28) 1986. It details maintenance procedures, including scheduled servicing, fluid checks, and component replacements, alongside in-depth repair instructions for all major vehicle systems such as the engine, transmission, drivetrain, suspension, steering, brakes, electrical systems, and body. The manual also includes essential diagnostic and troubleshooting information, along with crucial technical specifications like torque values and fluid capacities. This resource is designed to assist owners, mechanics, and technicians in effectively maintaining, diagnosing, and repairing the vehicle to factory standards.