This document provides comprehensive service and repair information for Case IH MXU Series Tractors, including models MXU100, MXU110, MXU115, MXU125, and MXU135. Produced primarily in the early to mid-2000s, these tractors represent a generation of versatile, mid-range agricultural machinery designed for a variety of farming operations. Case IH, a brand with a rich heritage in agricultural equipment, engineered the MXU series for reliability and performance, featuring diesel, turbocharged, and intercooled engines, typically producing between 100 and 135 horsepower. These tractors are equipped with advanced systems such as Powershift transmissions and electronic draft control for precise implement management, reflecting a commitment to efficient and productive farming. This comprehensive workshop manual, spanning 3990 pages, is designed to assist farm operators, agricultural technicians, maintenance personnel, and equipment repair shops. It covers all essential aspects of service, repair, and maintenance, offering detailed instructions for engine, transmission, hydraulics, and electrical systems, alongside brake, steering, and chassis service. The manual includes diagnostic charts, troubleshooting guides, repair and overhaul procedures, and specifications for specialized tools and torque values. With extensive illustrations, exploded views, and photographs, this resource facilitates efficient maintenance and repair, ensuring the continued optimal performance and longevity of your Case IH MXU Series Tractor.