The Volvo S60, a premium sport sedan from the first generation (2000-2009) and specifically the 2004 model year, embodies Scandinavian design principles with a strong emphasis on safety, comfort, and performance. This model is equipped with inline 5-cylinder turbocharged (T5) or naturally aspirated engines, offering robust power and responsive handling. Known for its advanced safety features, including a reinforced safety cage and standard electronic stability control, the S60 has consistently received high safety ratings. Its design philosophy prioritizes a blend of sophisticated aesthetics and practical functionality, positioning it as a compelling choice against competitors like the BMW 3 Series and Mercedes-Benz C-Class. This comprehensive workshop repair service manual in English provides detailed guidance for all 2004 Volvo S60 models, engines, trims, and transmissions. It covers an extensive range of systems, including engine service, transmission repair, brake system maintenance, electrical diagnostics with wiring diagrams, suspension and steering adjustments, cooling and fuel systems, HVAC, and interior components. The manual offers professional-level technical information for general maintenance, troubleshooting, periodic lubrication, and complete repair procedures, including disassembly and reassembly. Its purpose is to empower owners and technicians with the knowledge necessary for effective vehicle upkeep and repair, enabling DIY solutions and significant cost savings.