This comprehensive workshop service repair manual covers the BMW 525 and 525i models from 1981 to 1988. It provides detailed instructions and illustrations for every aspect of maintenance and repair, enabling you to perform a wide range of tasks, from routine servicing to complex engine overhauls. The manual includes detailed diagrams and specifications for all major components, covering everything from the engine and transmission to the electrical system, brakes, suspension, and bodywork. This invaluable resource will guide you through every step of the repair process, ensuring you have the information you need to diagnose and fix problems efficiently.

The BMW 525 and 525i, produced from 1981 to 1988, represent a significant chapter in the history of the German automaker. These mid-size sedans, part of the E12 generation, were known for their refined driving dynamics, elegant styling, and robust engineering. The 525 was powered by a 2.5-liter naturally aspirated inline-six engine, producing 150 horsepower. The 525i, featuring fuel injection, boasted a slight increase in power to 170 horsepower. Both models offered a choice of a 4-speed manual or a 3-speed automatic transmission, sending power to the rear wheels. The E12 5 Series brought several innovations to the segment, including the introduction of a four-wheel independent suspension system that provided exceptional handling and ride comfort. The car's styling, penned by Paul Bracq, was characterized by clean lines, a prominent grille, and a distinctive "shark nose" front end, a design element that would go on to become synonymous with BMW. The BMW 525 and 525i were renowned for their high quality build, durable engines, and comfortable interiors. They offered a blend of practicality and performance, making them well-suited for both daily driving and longer journeys. These models were also relatively reliable, further contributing to their popularity. The E12 5 Series was a significant departure from its predecessor, the E9, showcasing BMW’s commitment to innovation and refinement. It cemented the brand's reputation for building driver-focused cars and set the stage for the future success of the 5 Series line. The E12 525 and 525i remain popular choices for classic car enthusiasts today, appreciated for their timeless design, driving character, and enduring quality.