This manual provides comprehensive technical information for the 156, produced from 1997 to 2005, including all facelifted variants and the Sportwagon. The 156 is recognized for its distinctive Italian styling, engineered with a philosophy of 'the mechanics of emotion,' offering a compelling blend of aesthetic appeal and engaging driving dynamics. This model competed in the premium compact executive segment, providing an alternative to established German brands with a focus on sporty character and driver enjoyment. It was available with a range of gasoline engines, including the Twin Spark and the renowned V6 Busso, as well as efficient JTD common rail diesel engines, all of which are covered within this resource. This factory service repair workshop manual is an exhaustive guide designed to assist owners and professional technicians in maintaining and repairing the 156. It covers all essential aspects of the vehicle, including detailed procedures for engine mechanical and management systems, transmissions (manual and automatic), drivetrain, suspension, steering, brakes, and the complete electrical system. Additionally, the manual addresses body repair, HVAC systems, safety features like airbags and seat belts, and provides troubleshooting guides for common issues. With fully indexed and printable content, this manual ensures accurate diagnostics, efficient repairs, and optimal preservation of the vehicle's performance and character.