This manual covers the BMW 3-series and M3 models, chassis code E30, produced in 1985. Renowned for their driving dynamics and engineering quality, these vehicles represent BMW's commitment to performance and driver engagement. The E30 platform, known for its balanced chassis and rear-wheel-drive layout, offered a compelling alternative to its contemporaries and remains a benchmark for sports sedan handling. Engine options typically included the M10 4-cylinder, M20 6-cylinder, and the high-performance S14 4-cylinder for the M3 variant, all featuring Bosch fuel injection.

This comprehensive service and repair manual, sourced from official dealership technician data, provides detailed information for all repairs A-Z. It covers powertrain, drivetrain, chassis, suspension, brakes, electrical systems, and bodywork for global vehicle specifications. Included are routine maintenance procedures, diagnostic troubleshooting guides, component removal and installation instructions, and critical technical specifications such as torque values and fluid capacities. This manual is an essential resource for owners, mechanics, and technicians aiming to maintain, diagnose, and repair the BMW 3-series and M3.