This comprehensive workshop service repair manual covers the BMW 3 Series models 325i, 325xi, 328i, and 328xi produced between 2006 and 2010. These vehicles, available in E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), and E93 (Convertible) chassis configurations, are renowned for their signature 'Ultimate Driving Machine' characteristics, featuring precise steering, balanced handling, and potent inline-six engines. The North American market models offer a blend of sporty performance, driver-centric ergonomics, and premium interior materials, competing in the premium compact executive segment against rivals like Audi and Mercedes-Benz.

This manual provides factory-level detail for the diagnosis, service, repair, and maintenance of these BMW 3 Series vehicles. It encompasses all mechanical, electrical, and body procedures, including detailed information on powertrain systems, chassis components, electrical systems, and bodywork. Owners and technicians will find extensive coverage of routine maintenance, component replacement, engine and transmission overhauls, suspension and brake system repairs, and in-depth electrical system troubleshooting. The manual includes essential technical specifications, wiring diagrams, diagnostic trouble codes, and step-by-step repair instructions, ensuring accurate and efficient upkeep of the vehicle.