The BMW 330xi, produced for the 2005 model year, represents the E90 generation of BMW's compact executive sedan and wagon. This model embodies BMW's "Ultimate Driving Machine" ethos, offering sporty handling, a refined interior, and advanced technology for its era, notably its xDrive all-wheel drive system. Powered by a 3.0-liter inline 6-cylinder engine (M54B30) producing 225 horsepower and 214 lb-ft of torque, it was available with either a 6-speed manual or a 6-speed Steptronic automatic transmission. Its design philosophy emphasizes driving dynamics, making it a strong competitor in its segment.

This comprehensive workshop and service manual provides detailed information for the maintenance and repair of the 2005 BMW 330xi. It covers a wide array of systems, including engine mechanicals and management, automatic and manual transmissions, the xDrive drivetrain, suspension, brakes, and the electrical system. The manual includes step-by-step repair procedures, diagnostic troubleshooting guides, routine maintenance schedules, and technical specifications such as torque values and clearances. This resource is designed to assist owners, mechanics, and technicians in effectively maintaining and repairing the vehicle.