This comprehensive workshop service repair manual is your essential guide to maintaining and repairing your 1988, 1989, 1990, or 1991 BMW 525 or 525i. It contains detailed information that was originally intended for use by professional mechanics, providing you with in-depth knowledge and procedures for a wide array of maintenance and repair tasks. This manual covers everything from routine inspections and fluid changes to complex engine and transmission overhauls. You'll find detailed diagrams, step-by-step instructions, and troubleshooting tips to help you diagnose and resolve any issues you may encounter. Whether you're a seasoned mechanic or a DIY enthusiast, this manual will empower you to confidently tackle any repair job on your BMW.

The BMW 525 and 525i, produced between 1988 and 1991, represent the fifth generation of the iconic BMW 5 Series. These sedans were renowned for their elegant design, refined performance, and advanced technology. The 525, powered by a 2.5-liter inline-six engine, delivered smooth acceleration and a comfortable ride. Its counterpart, the 525i, boasted a fuel-injected version of the same engine, offering improved fuel efficiency and a slight power increase. The 525 series was available in both standard and long-wheelbase configurations, catering to a variety of driver needs. Key features included a sophisticated suspension system, power steering, power brakes, and a comprehensive suite of safety features. These cars were praised for their driving dynamics, offering a balance of comfort and agility. Interior appointments were luxurious, featuring high-quality materials and ergonomic design. The BMW 525 and 525i earned a reputation for their reliability and durability, becoming popular choices for both personal and business use. They were also highly regarded for their advanced technology for the time period, including features like anti-lock braking system (ABS), traction control, and an optional sunroof. These models marked a significant period in BMW's history, solidifying the 5 Series' position as a benchmark for luxury and performance in the mid-size sedan segment. Their enduring appeal is evident in their continued presence on roads today, often sought after by enthusiasts and collectors who appreciate their classic styling and engineering excellence.