This manual covers the BMW M3, specifically the E30 generation produced from 1985 to 1992. Developed by BMW Motorsport GmbH as a homologation special for Group A touring car racing, the E30 M3 is renowned for its exceptional handling, performance, and engineering precision. It features a naturally aspirated 2.3-liter S14B23 inline-4 engine producing 195 horsepower, paired with a Getrag 265 close-ratio 5-speed manual transmission and a limited-slip differential. The vehicle's robust construction, advanced suspension, and driver-focused cockpit have cemented its status as a highly sought-after modern classic and a defining model in the M3 lineage.

This comprehensive workshop manual provides detailed service, repair, and diagnostic information for the BMW E30 M3. It covers all major systems, including engine mechanicals and management, transmission, suspension, steering, braking, and electrical systems, with factory-level accuracy. The manual includes routine maintenance procedures, troubleshooting guides, major repair instructions, and essential technical specifications and tolerances. This resource is invaluable for BMW E30 M3 owners, professional technicians, and automotive restorers seeking to maintain, repair, and preserve the integrity of this iconic vehicle.