This comprehensive repair manual provides detailed technical information for the BMW 525i and 528i models manufactured between 1981 and 1988. The manual covers a wide range of topics, including engine repair, transmission maintenance, electrical system troubleshooting, suspension and steering adjustments, braking systems, and bodywork. It includes step-by-step instructions, detailed diagrams, and clear illustrations to guide you through every repair procedure. Whether you're a seasoned mechanic or a DIY enthusiast, this manual provides the essential information you need to keep your BMW running smoothly.

The BMW 5 Series (E12) was the first generation of the BMW 5 Series executive car, produced from 1972 to 1981. The 525i and 528i models, specifically, were introduced in 1981 and marked a significant departure from their predecessors. They retained the classic E12 design but incorporated a number of changes under the hood. The 525i was powered by a 2.5-liter inline-six engine, producing 148 horsepower, while the 528i featured a larger 2.8-liter engine capable of generating 174 horsepower. Both engines were paired with a four-speed automatic transmission or a five-speed manual transmission, offering a blend of performance and efficiency. The 525i and 528i were also equipped with a range of standard features, including power steering, power brakes, and air conditioning, solidifying their position as luxurious and comfortable vehicles. They were praised for their refined handling, responsive steering, and well-controlled ride, making them a popular choice for both daily commutes and long-distance drives.

The 1981 to 1988 models of the BMW 525i and 528i continued the legacy established by their predecessors. They received numerous updates and refinements over the years, including improvements to the suspension, brakes, and interior. The 525i and 528i remained popular choices for their blend of performance, practicality, and luxury. The 525i, with its smaller engine, offered a more fuel-efficient option, while the 528i provided a more powerful driving experience. Both models were known for their robust build quality and reliable performance, making them sought-after automobiles for collectors and enthusiasts alike. Despite their age, these cars remain relatively easy to maintain and repair, thanks to their straightforward mechanical design and a readily-available supply of parts. Their timeless styling and classic BMW driving experience have ensured that the 525i and 528i continue to be appreciated and valued by automotive enthusiasts.