This comprehensive repair manual covers the electrical systems of your 1982-1983 BMW 528e, 733i, 633csi, and 733i. It provides detailed information and troubleshooting procedures for a wide range of electrical components, helping you diagnose and repair issues with confidence. From wiring diagrams and schematics to step-by-step instructions, this manual empowers you to understand and address electrical problems, saving you time and money. Whether you're a seasoned mechanic or a DIY enthusiast, this manual provides the necessary guidance to tackle electrical challenges and keep your BMW running smoothly.

The BMW 528e, 733i, and 633csi models from 1982 and 1983 represent a pivotal period in the evolution of BMW's luxury and sporty offerings. These models were characterized by a blend of elegance, performance, and advanced technology that set them apart from their contemporaries. The 528e, a mid-size sedan, provided a comfortable and efficient driving experience, appealing to those seeking a balance between practicality and driving pleasure. The 733i, BMW's flagship sedan at the time, epitomized luxury and refinement, offering spacious interiors, sophisticated amenities, and a powerful engine. Finally, the 633csi, a two-door coupe, captured the imagination of driving enthusiasts with its sleek design, sporty handling, and impressive performance.

Beneath the hood, these models featured a range of sophisticated powertrains that emphasized efficiency and performance. The 528e was equipped with a 2.8-liter inline-six engine, known for its smooth operation and fuel economy. The 733i and 633csi were powered by a 3.2-liter inline-six engine, delivering a more potent performance with a satisfyingly smooth power delivery. These engines were paired with either a four-speed or five-speed manual transmission, or a three-speed automatic transmission, allowing drivers to choose their preferred driving experience. While these vehicles were lauded for their engineering and performance, they also faced challenges related to their electrical systems, particularly as they aged. Common issues included faulty wiring, failing sensors, and problems with the electronic control units (ECUs). These issues could manifest in various ways, from intermittent electrical failures to complete system malfunctions. Recognizing and troubleshooting these electrical problems was crucial for maintaining the reliability and functionality of these classic BMWs.