This manual provides comprehensive factory-level service and repair information for the 300M, Concorde, and Intrepid models produced for the 2002 and 2003 model years. These vehicles, built on the LH platform, represent premium sedan offerings of the era, known for their comfortable ride and sophisticated engineering. The 300M, in particular, received accolades such as the Car and Driver Ten Best award, highlighting its quality and performance. This documentation is essential for understanding the intricacies of these vehicles, from their 3.5L V6 engines to their advanced electronic systems. This extensive factory service manual covers all aspects of vehicle maintenance, diagnostics, and repair. It includes detailed procedures for engine mechanical and electrical systems, fuel, clutch, manual and automatic transaxles, driveshafts, suspension, steering, brake, and restraint systems. Additionally, it details body and interior components, HVAC systems, and body electrical systems. With step-by-step instructions, diagnostic charts, wiring schematics, and specifications, this manual is an invaluable resource for professional technicians and experienced DIY mechanics aiming to maintain or repair these vehicles accurately and efficiently.