The Mazda 6, produced from 2003 to 2008, is a mid-size sedan and wagon celebrated for its sporty handling, refined interior, reliable powertrains, and stylish design, embodying Mazda's 'Stylish, Insightful, and Spirited' philosophy. Built on Mazda's 'GD' platform, it offered a choice of the 2.0L LF-DE or the more powerful 2.3L FS-DE (MZR) engines, paired with either a 5-speed manual or a 5-speed automatic transmission. Known for its excellent safety ratings, including 5-star NHTSA front impact scores and 'Good' IIHS frontal offset and side impact ratings, the Mazda 6 also featured standard Anti-lock Braking System (ABS) and optional Traction Control and Dynamic Stability Control. Its competitive positioning against vehicles like the Honda Accord and Toyota Camry highlights its appeal as a well-engineered and engaging automobile.

This comprehensive factory service manual provides detailed guidance for the maintenance, diagnosis, repair, and troubleshooting of all systems for the Mazda 6. It covers essential areas including engine mechanicals, fuel, cooling, and emission control systems; manual and automatic transmissions; brake systems; steering and suspension; and the complete electrical system, including wiring diagrams. Furthermore, the manual details climate control, bodywork, and the supplemental restraint system (SRS). With in-depth procedures for routine maintenance, component replacement, and advanced diagnostics, this manual is an indispensable resource for owners, mechanics, and technicians seeking to preserve the performance and longevity of their 2003 Mazda 6.