Delve into the intricate workings of your 1986-1991 BMW 3-Series (E30) M3 (US) with this comprehensive Service Repair Workshop Manual. This manual serves as your ultimate guide to understanding and maintaining your vehicle, offering detailed instructions and procedures for a wide range of repairs and maintenance tasks. From basic troubleshooting to complex engine overhauls, this manual provides the knowledge you need to address any issue with confidence. This manual is a valuable resource for both professional mechanics and dedicated DIY enthusiasts, empowering you to tackle repairs with precision and efficiency.

The 1986-1991 BMW 3-Series (E30) M3 is a legendary performance car that redefined the concept of a homologation special. Born from the need to meet Group A touring car racing regulations, the E30 M3 was a street-legal version of a purpose-built race car. It was a masterpiece of engineering and design, boasting a naturally aspirated 2.3-liter four-cylinder engine producing a thrilling 195 horsepower, later upgraded to 215hp in the 1988 model. Paired with a close-ratio five-speed manual transmission, the M3 delivered exhilarating performance, achieving a 0-60 mph sprint in under 7 seconds and a top speed of 145 mph. Its lightweight construction, employing an aluminum hood and other weight-saving measures, contributed to its nimble handling. The M3's sporty character was further enhanced by wider front and rear wheel arches, a distinctive front bumper with a large air intake, and a rear spoiler – all functional elements designed to improve aerodynamics and cooling. Beyond its impressive performance, the E30 M3 captivated drivers and enthusiasts with its refined handling, precise steering, and responsive brakes. The car was lauded for its exceptional driver engagement, making it feel like an extension of the driver's body. It was available in both coupe and convertible body styles, offering a choice for those seeking a more intimate driving experience or a more open-air thrill. The E30 M3's legacy extends beyond its impressive performance figures; it remains a symbol of BMW's dedication to motorsport and a testament to the brand's engineering prowess. The E30 M3 has earned its place among the most iconic and desirable sports cars of all time, and for many, it continues to be the ultimate embodiment of the "ultimate driving machine" philosophy.