The 2010 Mazda 3, identified by chassis code BK, is a compact car celebrated for its engaging driving dynamics and stylish design, often referred to as the second generation of the model. Equipped with a 1.6 L I4 Diesel engine, this vehicle offered a compelling blend of performance and fuel efficiency, making it a popular choice, particularly in international markets. Its engineering quality is reflected in its refined chassis, updated exterior, and more premium interior compared to its predecessors, positioning it as a strong competitor in its segment. This comprehensive service and repair manual provides detailed information for the 2010 Mazda 3 1.6 L I4 Diesel. It covers essential maintenance procedures, in-depth repair instructions for all major systems including engine mechanical, engine electrical, transmission, brakes, suspension, and bodywork, as well as troubleshooting guides and electrical wiring diagrams. The manual is designed to assist owners, mechanics, and technicians in effectively maintaining, diagnosing, and repairing the vehicle, ensuring its optimal performance and longevity.