The BMW E46, produced between 1998 and 2006, represents a distinguished era for the 3 Series, embodying BMW's renowned engineering prowess and commitment to driving dynamics. This generation, available in sedan, coupe, convertible, and touring body styles, offered a range of inline-four and inline-six engines, from the efficient 316i to the high-performance M3. The E46 is celebrated for its balanced chassis, precise steering, and robust build quality, making it a popular choice for enthusiasts and daily drivers alike, consistently praised for its driving experience and overall reliability during its production lifespan. This comprehensive service and workshop manual provides detailed procedures for the maintenance, diagnosis, and repair of the BMW E46. It covers all major vehicle systems, including engine management, powertrain components, chassis, and electrical systems, offering step-by-step instructions, torque specifications, fluid capacities, and detailed illustrations. The manual is an essential resource for BMW E46 owners and independent workshops, enabling them to perform routine maintenance, complex repairs, and troubleshooting with accuracy, ensuring the longevity and optimal performance of the vehicle.