The Mazda Mazdaspeed 3, produced for the 2010-2011 model years, represents a performance-oriented compact vehicle built upon Mazda's renowned engineering for spirited driving. This model is distinguished by its powerful 2.3L MZR DISI L3-VDT turbocharged engine, delivering approximately 263 horsepower and 280 lb-ft of torque, coupled with a precise 6-speed manual transmission and a limited-slip differential for enhanced traction. Designed to compete with other performance hatchbacks and sedans, the Mazdaspeed 3 offers a dynamic driving experience, appealing to enthusiasts who value responsive handling and potent acceleration. Its construction emphasizes a blend of sportiness and everyday practicality, making it a compelling choice in its segment. This comprehensive workshop service manual provides detailed information essential for the maintenance, repair, and diagnostics of the 2010-2011 Mazda Mazdaspeed 3. Covering a wide array of vehicle systems, including engine mechanicals, fuel, ignition, lubrication, cooling, exhaust, emissions control, manual transmission, clutch, drivetrain, suspension, steering, braking systems, and the complete electrical system, this manual is an invaluable resource. It offers step-by-step procedures for routine maintenance, troubleshooting complex issues, component overhaul, and disassembly/reassembly. With its high-resolution diagrams and clear, concise English text, this manual is tailored to assist both professional technicians and advanced DIY enthusiasts in keeping the Mazdaspeed 3 in optimal condition.