This comprehensive service and repair manual covers all aspects of the BMW 525 and 525i models produced from 1981 to 1988. It is a detailed resource that provides step-by-step instructions and illustrations for a wide range of maintenance and repair procedures. The manual includes detailed information on engine, transmission, electrical, suspension, brakes, and bodywork systems. It also includes troubleshooting guides, wiring diagrams, torque specifications, and parts diagrams, making it an invaluable tool for both professional mechanics and DIY enthusiasts. With hundreds of pages of technical information, this manual is the ultimate resource for anyone seeking to understand and maintain their BMW 525 or 525i.

The BMW 525 and 525i, produced from 1981 to 1988, represent the second generation of the iconic BMW 5 Series. The E12, as it was internally designated, was a major departure from its predecessor, offering a more refined and luxurious driving experience. While still retaining the classic BMW characteristics of precise handling and engaging driving dynamics, the E12 introduced a more spacious and comfortable interior, catering to a broader audience. The 525, powered by a 2.5-liter six-cylinder engine, offered a balance of performance and efficiency. On the other hand, the 525i, equipped with fuel injection, delivered a significant boost in power and responsiveness, making it a true head-turner. The E12 was a technological marvel for its time, featuring innovations like a sophisticated suspension system with independent MacPherson struts in the front and a semi-trailing arm setup in the rear, ensuring precise handling and a comfortable ride. The E12 525 and 525i are known for their timeless elegance and classic BMW styling. The distinctive kidney grille, sharp lines, and well-proportioned bodywork have aged gracefully, making them desirable classics today. These models were available in various body styles, including sedans and touring wagons, providing versatility for different needs. While the E12 has become a sought-after collectible, its simplicity and inherent reliability make it a practical and enjoyable daily driver. Its robust mechanicals, combined with a relatively straightforward design, make it a rewarding experience for automotive enthusiasts who appreciate the classic driving experience. The E12 525 and 525i are a testament to BMW's commitment to engineering excellence and timeless design, ensuring their enduring appeal for generations to come.