The 3 Series, chassis code E46, represents a pinnacle of automotive engineering in the compact executive car and sport sedan segment, produced globally from 1998 to 2006. This generation is celebrated for its exceptional driving dynamics, characterized by a balanced chassis, rear-wheel-drive bias, and sophisticated multi-link suspension. Available in various body styles including Sedan, Coupe, Convertible, and Touring, the E46 3 Series offered a blend of performance, luxury, and practicality, powered by a range of acclaimed inline-four and inline-six engines. Its reputation for build quality and driver-focused design earned it numerous accolades, including multiple appearances on Car and Driver's 10Best list.

This comprehensive service and repair manual provides in-depth technical information for 3 Series models from 1999 to 2005. It covers all essential aspects of vehicle maintenance, diagnosis, and repair, including powertrain systems, chassis components, and electrical systems. Detailed procedures for routine maintenance, component replacement, and troubleshooting are outlined, along with critical technical specifications and wiring diagrams. This manual is an indispensable resource for owners, technicians, and mechanics seeking to maintain the performance, reliability, and safety of their E46 3 Series vehicle.