The Discovery 3, also known as the LR3, is a full-size luxury SUV produced from approximately 2004 to 2009. This model, built on the L319 chassis, is recognized for its robust construction, advanced Terrain Response system, sophisticated independent suspension, and spacious interior, making it a popular choice for families and adventurers alike. The legacy of producing capable off-road vehicles is evident in the Discovery 3's design, which aimed to balance luxury with formidable all-terrain capability, competing with other premium SUVs of its era.

This manual serves as a comprehensive technical training resource for the Discovery 3, with a primary focus on its complex electrical systems. It covers essential areas such as HVAC systems, the instrument cluster, the charging system, the audio system, electrical distribution, vehicle networks, exterior lighting, navigation and telephone integration, and restraint systems. Detailed diagnostic procedures, testing methodologies, and component replacement guidelines are provided to assist technicians and advanced enthusiasts in maintaining and repairing the vehicle's electrical components and ensuring optimal performance and safety.

The Discovery 3, also known as the LR3, is a full-size luxury SUV produced from approximately 2004 to 2009. This model, built on the L319 chassis, is recognized for its robust construction, advanced Terrain Response system, sophisticated independent suspension, and spacious interior, making it a popular choice for families and adventurers alike. The legacy of producing capable off-road vehicles is evident in the Discovery 3's design, which aimed to balance luxury with formidable all-terrain capability, competing with other premium SUVs of its era.

This manual serves as a comprehensive technical training resource for the Discovery 3, with a primary focus on its complex electrical systems. It covers essential areas such as HVAC systems, the instrument cluster, the charging system, the audio system, electrical distribution, vehicle networks, exterior lighting, navigation and telephone integration, and restraint systems. Detailed diagnostic procedures, testing methodologies, and component replacement guidelines are provided to assist technicians and advanced enthusiasts in maintaining and repairing the vehicle's electrical components and ensuring optimal performance and safety.