The Mazda3 MPS, also known as the Mazdaspeed3, is a performance-oriented compact sport hatchback produced from 2007 to 2009. Built on the first-generation Mazda3 chassis (BK), this model embodies Mazda's "Jinba Ittai" philosophy, emphasizing a harmonious connection between driver and vehicle, evident in its sharp handling and responsive steering. Powered by a 2.3-liter MZR DISI Turbo engine producing approximately 263 horsepower and 280 lb-ft of torque, coupled with a 6-speed manual transmission and a limited-slip differential, the Mazda3 MPS delivers exhilarating performance. Its engineering quality, reliability, and focus on driving dynamics positioned it as a strong competitor in the hot hatch segment against vehicles like the Volkswagen GTI and Subaru WRX. This comprehensive Workshop Service Manual (WSM) provides detailed technical information and procedures for the 2007-2009 Mazda3 MPS. It covers all major systems, including the powertrain (engine, transmission, drivetrain, fuel, cooling, exhaust), chassis (suspension, brakes, steering), electrical systems (wiring diagrams, ECUs, sensors), and body and interior components. The manual includes essential maintenance schedules, diagnostic troubleshooting guides, step-by-step repair procedures, overhaul instructions, and critical technical specifications such as torque values and clearances. This resource is designed to assist owners, mechanics, and technicians in performing accurate maintenance, diagnostics, and repairs, ensuring the optimal performance and longevity of the vehicle.