This comprehensive service and repair manual for the 1979 BMW 3-series (E21) provides you with the same detailed technical information used by BMW technicians. You'll find step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications to help you maintain, service, diagnose, and repair your vehicle. Whether you're tackling routine maintenance or more complex repairs, this manual will guide you through every step.

Explore a wide range of topics, including engine specifications, fuel systems, emission controls, ignition and starting systems, transmissions, drivetrain components, brakes, steering, air conditioning, electrical systems, and much more. You'll receive complete coverage for all models and all repairs, enabling you to confidently address any issue that arises. The detailed information and clear illustrations make it easy to understand even the most intricate aspects of your vehicle's systems.

The BMW 3 Series (E21) is a compact executive car that marked the beginning of a legendary lineage for the German automaker. Introduced in 1975, the E21 generation was the first to bear the "3 Series" designation, replacing the aging 02 Series. It was a significant departure from its predecessor, boasting a larger and more spacious body, a more refined interior, and a range of modern engines. The E21's sleek and sporty design, penned by Paul Bracq, was a testament to BMW's evolving focus on performance and aesthetics. It featured a long hood, a sloping roofline, and a short rear deck, which not only gave it an elegant profile but also contributed to its exceptional handling and driving dynamics.

The E21 3 Series was available with a variety of petrol engines, ranging from the 1.6-liter four-cylinder in the base model to the potent 2.3-liter M20 engine in the top-of-the-line 323i. The M20 engine, which marked a shift towards fuel injection technology, delivered impressive performance and helped solidify the 3 Series' reputation as a driver's car. The E21's success wasn't limited to its performance; its reliability and durability made it a popular choice for both everyday driving and motorsport applications. It became a successful competitor in various racing series, further enhancing its reputation as a capable and versatile machine. The E21's legacy as a pioneering model in the 3 Series family paved the way for the continued evolution of this iconic lineup, establishing a benchmark for performance, elegance, and driving pleasure that continues to define BMW's compact executive cars today.