This comprehensive workshop service repair manual is specifically designed for the Mercury Mariner Marathon equipped with a 3.0 L engine. It provides a wealth of detailed information and instructions covering all aspects of maintenance and repair for this vehicle. The manual includes detailed diagrams, illustrations, and step-by-step procedures to guide technicians through a wide range of service operations. From routine maintenance tasks like oil changes and filter replacements to complex engine repairs, brake system overhauls, and electrical system troubleshooting, this manual equips technicians with the necessary knowledge and guidance to effectively diagnose and repair any issue encountered on the Mercury Mariner Marathon.

The Mercury Mariner Marathon was not a real model produced by Ford Motor Company, which manufactured Mercury vehicles. There is no official record of a "Marathon" trim level or model variation specifically for the Mercury Mariner. The Mariner was a compact crossover SUV offered by Mercury from 2005 to 2011 sharing its platform with the Ford Escape. The Mariner was offered in various trim levels such as the base S, mid-range SE, and top-of-the-line SEL, each equipped with different feature sets and powertrain options. The engine choices for the Mariner included a 2.3L four-cylinder, a 2.5L four-cylinder, and a 3.0L V6. The "3.0 L Workshop Service Repair Manual" likely refers to a comprehensive guide designed specifically for mechanics and technicians working on the Mercury Mariner, particularly those equipped with the 3.0L V6 engine. This manual would contain detailed information about the engine, its components, and the necessary procedures for servicing, repairing, and maintaining it. The manual might cover topics such as engine removal and installation, valve adjustments, timing belt replacement, troubleshooting engine codes, and repair procedures for common engine issues. However, without further context, it is difficult to confirm the exact contents of this specific workshop service repair manual.