This manual covers the BMW 3 Series models from 2006 to 2010, encompassing the E90 sedan, E91 wagon, E92 coupe, and E93 convertible chassis codes. Renowned for its driving dynamics, sophisticated interiors, and advanced technology, the BMW 3 Series has consistently held a strong position in the premium compact executive segment. This generation is celebrated for its commitment to the 'Ultimate Driving Machine' philosophy, offering a balance of performance, handling, and driver engagement, often featuring rear-wheel drive with optional xDrive all-wheel drive. The vehicle is powered by a range of inline-4 and inline-6 petrol and turbo-diesel engines, delivering between 143 and 306 horsepower, and is equipped with either a 6-speed manual or a 6-speed Steptronic automatic transmission.

This comprehensive workshop and service repair manual provides in-depth guidance for all aspects of maintenance, diagnostics, and repair for these BMW 3 Series vehicles. It details procedures for engine mechanical and electrical systems, fuel, ignition, cooling, exhaust, drivetrain, transmission, clutch, driveshafts, axles, suspension, steering, braking systems, and electrical components. The manual includes scheduled maintenance, routine inspections, engine overhaul procedures, component replacement, and troubleshooting guides, supported by torque specifications, wiring diagrams, and diagnostic trouble code explanations. This resource is designed to assist owners, mechanics, and technicians in effectively maintaining and repairing their vehicles, ensuring optimal performance and longevity.