The BMW 328xi, produced from 2006 to 2010 as the E90/E91 sedan and wagon, represents a cornerstone of BMW's compact executive vehicle offerings. Renowned for its sporty handling, premium interior, and advanced engineering, this model features BMW's xDrive all-wheel-drive system for enhanced traction and stability, coupled with a smooth 3.0-liter naturally aspirated inline-6 engine. The N52 engine, recognized for its refinement and efficiency, powers the 328xi, delivering approximately 230 horsepower and 200 lb-ft of torque. This vehicle is positioned against competitors like the Audi A4 Quattro and Mercedes-Benz C-Class 4MATIC, embodying BMW's commitment to driving dynamics and luxury.

This comprehensive workshop repair service manual provides detailed information for the BMW 328xi (E90/E91) from 2006 through 2010. It covers all major systems, including the powertrain (engine, transmission, drivetrain), chassis (suspension, brakes, steering), electrical systems, and body components. The manual details scheduled maintenance procedures, fluid specifications, and common repair tasks, ranging from routine oil changes to complex engine and transmission overhauls. It also includes essential troubleshooting guides for diagnosing and resolving issues, along with technical specifications and safety guidelines, making it an indispensable resource for owners and technicians alike.