This comprehensive workshop service repair manual provides detailed instructions and illustrations for all aspects of maintaining and repairing your BMW 3-Series E21. It covers everything from routine fluid changes to complex tasks like transmission rebuilds. You'll find detailed wiring schematics, electrical diagrams, computer diagnostic codes, and step-by-step guidance for suspension, brakes, airbags, air conditioning, engine and transmission service, as well as bodywork. This manual is designed to be user-friendly, allowing you to easily search for specific information using its comprehensive index. Whether you're a seasoned mechanic or a DIY enthusiast, this manual equips you with the knowledge and instructions to confidently perform any repair or maintenance on your BMW 3-Series E21.

The BMW 3 Series E21 is a classic and highly sought-after model that marked a significant milestone in the evolution of the BMW brand. Introduced in 1975, the E21 was the first generation of the 3 Series, replacing the aging 1800/2000 models. It was a compact and sporty four-door sedan that offered a compelling blend of handling, performance, and affordability. The car's design, penned by Paul Bracq, featured a clean and elegant aesthetic with a distinctive sloping roofline, a long hood, and a short rear deck. It was the first BMW to utilize a dedicated platform specifically designed for the 3 Series, offering a balanced and agile driving experience. Under the hood, the E21 was powered by a range of four-cylinder engines, including the 1.6-liter M10 unit, which produced a respectable 75 horsepower. Later models featured larger 1.8-liter and 2.0-liter variants, with the top-of-the-line 323i equipped with a 2.3-liter engine capable of generating a sporty 140 horsepower. The E21's driving dynamics were further enhanced by its rear-wheel drive layout and a well-balanced suspension system. It offered a thrilling and engaging driving experience, earning a reputation for its precision handling and responsive steering. The E21's success solidified the BMW 3 Series as a benchmark for compact sport sedans, paving the way for future generations that would continue to push the boundaries of performance and refinement.