The 2003 M3 (E46) stands as a celebrated high-performance sports coupe and convertible, a testament to M division heritage. Engineered for an exhilarating driving experience, this model is powered by a potent 3.2-liter naturally aspirated inline-six engine, producing 333 horsepower and 262 lb-ft of torque, paired with either a 6-speed manual or an optional SMG III transmission. It was lauded for its exceptional handling, sophisticated chassis tuning, and driver-centric design, setting a benchmark in its competitive segment. Key features include distinctive M styling, advanced aerodynamic elements, and a premium interior, all contributing to its reputation as an ultimate driving machine.

This owner's manual provides comprehensive guidance for operating and maintaining your 2003 M3. It covers essential areas such as vehicle operation, safety guidelines, key features, and emergency procedures, along with basic troubleshooting tips. The manual details various systems, including the engine, transmission, brakes, steering, suspension, climate control, and electrical systems. It also outlines specific procedures for routine checks, fluid level management, and basic adjustments. While offering general user operation and basic maintenance advice, this guide does not extend to detailed repair procedures or advanced diagnostics, which are typically found in dedicated workshop manuals.

The 2003 M3 (E46) stands as a celebrated high-performance sports coupe and convertible, a testament to M division heritage. Engineered for an exhilarating driving experience, this model is powered by a potent 3.2-liter naturally aspirated inline-six engine, producing 333 horsepower and 262 lb-ft of torque, paired with either a 6-speed manual or an optional SMG III transmission. It was lauded for its exceptional handling, sophisticated chassis tuning, and driver-centric design, setting a benchmark in its competitive segment. Key features include distinctive M styling, advanced aerodynamic elements, and a premium interior, all contributing to its reputation as an ultimate driving machine.

This owner's manual provides comprehensive guidance for operating and maintaining your 2003 M3. It covers essential areas such as vehicle operation, safety guidelines, key features, and emergency procedures, along with basic troubleshooting tips. The manual details various systems, including the engine, transmission, brakes, steering, suspension, climate control, and electrical systems. It also outlines specific procedures for routine checks, fluid level management, and basic adjustments. While offering general user operation and basic maintenance advice, this guide does not extend to detailed repair procedures or advanced diagnostics, which are typically found in dedicated workshop manuals.