This comprehensive service and repair manual is specifically designed for the BMW E21 315 - 323i models. It provides detailed instructions and step-by-step diagrams for all workshop procedures, empowering you to tackle your car's maintenance and repair needs with confidence. The manual covers a wide range of essential topics, including general maintenance, troubleshooting, engine service and repair, transmission service and repair, brake system, electrical system, suspension, wiring diagrams, periodic lubrication, steering, cooling system, fuel injection and fuel system, emission system, heater and air conditioning, engine control system, chassis and body restraint system, interior, differential and drive axle. With this manual as your guide, you have the knowledge and resources to perform a variety of repair and maintenance tasks on your BMW E21, saving you time and money in the process.

The BMW E21 is a compact executive car that was produced by BMW from 1975 to 1983. It was the first generation of the BMW 3 Series and was initially available as the 316, 318, 320, and 323i models. The E21 was a significant departure from the previous generation 1600 and 1800 models, and a departure from the traditional, boxy styling of the 02 series. It featured a more aerodynamic design with a sloping nose and a pronounced rear deck. This design change, coupled with a lightweight body and potent engine options, made the E21 a popular choice for both street driving and motorsport. Beyond its aesthetic appeal, the E21 was known for its superior handling and performance, thanks to its advanced suspension setup and rear-wheel drive configuration. The E21 was also available with several different engine options, ranging from the 1.6-liter four-cylinder engine in the 316 to the 2.3-liter four-cylinder engine in the 323i. This combination of features made the E21 a highly desirable car for enthusiasts and a successful model for BMW. Despite its relatively short production lifespan, the E21 continues to be a popular choice for collectors and drivers who appreciate its classic styling, sporty performance, and overall driving experience. The E21 set the stage for the future of the BMW 3 Series and played a significant role in shaping the brand's reputation for producing high-performance, driver-focused vehicles.