This comprehensive service and repair manual for the BMW 3-series (E21) model year 1975 provides detailed instructions and illustrations to help you maintain, service, diagnose, and repair your vehicle. It covers all models and all repairs, offering the same information used by technicians at BMW dealerships. The manual includes step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications to ensure you have everything you need to complete any repair.

The manual covers a vast array of topics, including maintenance, engine, control system, mechanical, fuel service specifications, emission control, intake exhaust cooling, lubrication, ignition starting charging, automatic and manual transmission, transfer propeller shaft, drive shaft, differential, axle suspension, tire & wheel, brake control, brake, parking brake, steering column, power steering, air conditioning, supplemental restraint system, seat belt, engine immobilizer, cruise control, wiper & washer, door lock, meter audio/visual, horn, windshield/glass mirror, instrument panel, seat, engine hood/door, exterior & interior, electrical, multiplex/CAN communication, and much more. This manual can save you time and money by empowering you to perform repairs yourself at the comfort of your own garage.

The BMW 3-series (E21) is a compact executive car that holds a special place in automotive history. It was the first generation of the iconic 3-series range, a name synonymous with driving pleasure and sporting elegance. Introduced in 1975, the E21 marked a significant departure from the previous BMW 1800/2000 models, offering a more modern and refined driving experience. The E21's design, penned by Paul Bracq, was characterized by sharp lines, a raked windshield, and a distinctive Hofmeister kink at the C-pillar. It was available in a variety of body styles, including a two-door sedan, a two-door coupe, and a rare three-door hatchback. Under the hood, the E21 featured a range of four-cylinder engines, initially displacing 1.6 liters and later upgraded to 1.8 and 2.0 liters. These engines, paired with a choice of manual or automatic transmissions, delivered a spirited and engaging driving experience.

Beyond its sporty handling and agile nature, the E21 showcased innovative features for its time. It introduced the first fully independent rear suspension in a small BMW, a design that significantly enhanced ride comfort and handling. The car's interior was equally impressive, offering a driver-centric cockpit with well-placed controls and a sense of quality. While the E21 may not have enjoyed the same level of success as its later 3-series counterparts, it laid the foundation for BMW's dominance in the compact executive segment. The car's enduring popularity among enthusiasts continues to this day, making it a sought-after classic and a testament to BMW's commitment to performance and driving pleasure.