This comprehensive workshop repair service manual provides detailed technical information for your 1991 BMW 525 and 525i, encompassing all models, engines, trim levels, and transmission types. Dive into the intricacies of your vehicle's systems and gain access to a wealth of knowledge, enabling you to confidently perform service, maintenance, and troubleshooting tasks. The manual is meticulously organized and includes step-by-step instructions, clear diagrams, and precise specifications, ensuring you have the tools you need to address any issues. Whether you are a seasoned mechanic or a dedicated DIY enthusiast, this manual serves as your ultimate guide to maintaining and repairing your 1991 BMW 525 or 525i, empowering you to keep your vehicle running smoothly for years to come.

The BMW 525i, produced from 1988 to 1995, was the mid-range offering in BMW's popular E34 5 Series lineup. It was a sophisticated and well-engineered sedan that offered a blend of performance, luxury, and practicality. Powering the 525i was BMW's renowned M20 engine, a 2.5-liter naturally aspirated inline-six that produced 170 horsepower. This engine was known for its smooth, responsive power delivery and its characteristic "BMW six-cylinder" sound. The 525i was available with a 5-speed manual transmission or a 4-speed automatic transmission, and it featured a rear-wheel drive configuration that provided exceptional handling and driving dynamics. The car's suspension was also well-tuned, offering a comfortable ride while still maintaining a sporty feel. Inside, the 525i offered a premium and driver-focused environment. It featured high-quality materials, comfortable seats, and a well-laid-out dashboard. The car was also well-equipped with features such as power windows, central locking, and air conditioning. The 525i was praised for its spacious interior, providing ample room for both passengers and cargo. Despite its sporty capabilities, the 525i was also a practical car, offering a decent fuel economy rating. The 525i was a popular choice among both discerning drivers and families, and its reputation as a reliable and well-built car cemented its place as a classic in the automotive world. The 1991 model year saw only minor updates compared to its predecessors, with improvements focusing on the car's interior and exterior styling, as well as a continued emphasis on comfort and performance.