Welcome to the comprehensive service and repair manual for the 3 Series E46, covering production years 1999 through 2005. Engineered with renowned driving dynamics and build quality, the E46 generation is celebrated for its balanced chassis and driver-focused experience, making it a benchmark in the compact executive segment. This manual provides detailed insights into the various engine options, from the spirited inline-six configurations to the potent M3 variant, and covers the robust manual and automatic transmission systems. Whether you own a sedan, coupe, convertible, or wagon, this guide is designed to help you understand and maintain the exceptional performance and reliability that defines the 3 Series.

This manual serves as an exhaustive resource for owners, mechanics, and technicians alike. It details essential maintenance procedures, including recommended service intervals and fluid specifications, alongside in-depth repair instructions for all major systems: powertrain, chassis, electrical, and body. Troubleshooting guides and diagnostic procedures are included to help identify and resolve common issues efficiently. With comprehensive coverage of technical specifications, wiring diagrams, and detailed explanations, this manual empowers you to perform everything from routine upkeep to complex repairs, ensuring your 3 Series E46 remains in peak condition.