This comprehensive workshop repair service manual is specifically designed for the 1986 BMW 525 and 525i models. It provides a wealth of technical information covering all models, engines, trims, and transmission types. Within this manual, you will find detailed instructions for performing service, maintenance, and troubleshooting tasks. The manual is a valuable resource for both professional mechanics and DIY enthusiasts, offering a step-by-step approach to understanding and working on your BMW.

The BMW 525i, produced from 1986 to 1988, was part of the E28 generation of the popular 5 Series. This iteration marked a significant departure from its predecessors, boasting a more aerodynamic and refined design. The 525i featured a powerful 2.5-liter inline-six engine, delivering a smooth and engaging driving experience, while maintaining a comfortable ride. The engine produced 170 horsepower and 166 lb-ft of torque, coupled with a five-speed manual or four-speed automatic transmission, propelling the car to a top speed of 123 mph. Beyond performance, the 525i offered a luxurious interior with plush seats, wood trim, and a comprehensive array of features, including power steering, electric windows, and air conditioning. This combination of performance, comfort, and technology made it a highly sought-after vehicle in its time. The BMW 525i E28 wasn't just a comfortable cruiser; it also showcased innovative engineering. The car introduced advanced suspension technology like the "self-leveling" rear suspension that automatically adjusted ride height based on load. Further enhancing safety and handling were features like the "anti-dive" front suspension, which minimized nosedive during braking. This combination of technology and engineering ensured a balanced and controlled driving experience, contributing to the E28's reputation as a highly capable and refined luxury sedan. Although production ended in 1988, the E28 525i left an enduring legacy, influencing subsequent generations of BMW 5 Series and solidifying its place as a classic example of German automotive excellence.