This manual provides comprehensive information for the Mitsubishi Eclipse and Eclipse Spyder, third generation (D50A/D52A), covering model years 2003 through 2005. Built on a platform shared with the Mitsubishi Galant, these vehicles were designed as compact sports cars and convertibles, emphasizing sporty styling and engaging driving dynamics, particularly with the available 3.0L V6 engine. The Eclipse and Eclipse Spyder are known for their aggressive design and were manufactured in Normal, Illinois. This generation represented a notable shift in design and engineering, aiming to compete in a segment with vehicles like the Nissan 350Z and Ford Mustang.

This factory service manual is designed to be an exhaustive resource for owners, technicians, and mechanics. It details maintenance schedules, fluid specifications, and common issues specific to the 2.4L and 3.0L engines, as well as general vehicle concerns. The manual covers all major systems, including the powertrain, drivetrain, chassis, and electrical systems, with in-depth repair procedures, diagnostic flowcharts, and wiring diagrams. Its comprehensive scope ensures that users have the necessary information to perform everything from routine maintenance, such as oil changes and filter replacements, to complex repairs and component installations, ensuring the longevity and optimal performance of the vehicle.