The Sigma / Diamante, specifically the second generation sedan models produced between 1991 and 1995, represents a notable entry in the mid-size to full-size luxury sedan segment. Engineered by Mitsubishi Motors Corporation, these vehicles were designed to offer a blend of comfort, performance, and advanced features for their era, often competing with established luxury marques. Key distinguishing features included the availability of All-Wheel Drive on select models, luxurious interior appointments, and advanced optional systems such as electronic suspension. The Diamante received industry recognition, notably being named Motor Trend's Import Car of the Year for 1992, underscoring its quality and appeal to consumers seeking a well-equipped and reliable sedan. This comprehensive workshop repair manual serves as an essential resource for maintaining and repairing your Sigma / Diamante. It covers a vast array of systems, including detailed procedures for the 6G72 V6 engine, both the F5M33 manual and F4A33 automatic transmissions, drivetrain, suspension, brakes, steering, body, chassis, electrical systems, and HVAC. The manual provides in-depth coverage of scheduled maintenance, diagnostic troubleshooting, repair and overhaul procedures, and the identification of special tools. With detailed step-by-step instructions, diagrams, and illustrations, this manual empowers owners, mechanics, and technicians to effectively service and preserve the longevity and performance of their vehicle.