This comprehensive factory service repair manual provides detailed instructions and technical specifications for the 1986 BMW E30 M3. It covers all aspects of the vehicle, from routine maintenance procedures to complex repairs, ensuring you have the necessary information to keep your car running smoothly. The manual contains hundreds of pages of information, including detailed wiring diagrams, troubleshooting guides, and step-by-step instructions for every repair procedure. Whether you are a seasoned mechanic or a DIY enthusiast, this manual is an essential resource for understanding the intricacies of your BMW E30 M3.

The BMW E30 M3, introduced in 1986, is a high-performance sports car that has become an icon in the automotive world. Developed to compete in Group A touring car racing, the E30 M3 was a homologation special, meaning that BMW needed to produce a certain number of road-going versions to be eligible for racing. The E30 M3 features a lightweight, aerodynamic body, a powerful naturally aspirated four-cylinder engine, and a driver-focused interior, setting the stage for a thrilling driving experience. It was powered by a 2.3-liter S14 engine, capable of producing 195 horsepower, later boosted to 215 horsepower in the 1988 Evolution models. The E30 M3 was revolutionary in its lightweight construction, with extensive use of aluminum and plastic, and featured a wide array of aerodynamic modifications, including a distinctive rear wing, a front spoiler, and side skirts. The E30 M3's suspension was also carefully tuned for both handling and comfort, contributing to its precise and responsive driving characteristics. The E30 M3 quickly gained a reputation for its exceptional performance and handling on the track and on the road. It became a dominant force in Group A racing, winning numerous championships and establishing itself as a legend among motorsport enthusiasts. The E30 M3 also attracted a passionate following among car enthusiasts, becoming a sought-after collector's item and a symbol of BMW's engineering prowess. The E30 M3's influence is still felt today, as its design and performance characteristics have inspired generations of BMW sports cars. The original E30 M3 is a testament to BMW's commitment to performance, innovation, and the enduring appeal of a legendary sports car that continues to captivate enthusiasts worldwide.