This manual covers the BMW M3, specifically the E46 generation, produced for the model years 1999 through 2005. The E46 M3 is renowned as a high-performance sports coupe and sedan, engineered by BMW M GmbH for exceptional driving dynamics and track-inspired capability. It features a potent 3.2-liter inline-6 engine (S54B32) producing 333 horsepower, paired with a choice of a 6-speed manual or Sequential Manual Gearbox (SMG II) and a rear-wheel-drive system with a limited-slip differential. Its design emphasizes performance, with advanced suspension, braking, and engine management systems, making it a benchmark in its class and a sought-after vehicle for enthusiasts.

This comprehensive factory service manual provides detailed information for the maintenance, diagnosis, and repair of the BMW M3 E46. It includes step-by-step procedures for all major systems, including engine mechanicals, engine management, transmissions, brakes, suspension, steering, electrical systems, HVAC, body, and interior components. Coverage extends to preventive maintenance schedules, troubleshooting common issues, advanced diagnostics, and specific repair procedures, all presented with factory-level detail. This manual is an essential resource for owners, mechanics, and technicians seeking to maintain the optimal performance and longevity of their E46 M3.