This comprehensive Alfa Romeo 156 Service Repair Manual covers models from 2003 to 2007, providing detailed information for both owners with basic mechanical skills and independent auto service professionals. It offers the same specifications and procedures available to authorized dealer service departments, enabling you to understand your vehicle better and communicate effectively with automotive technicians. The manual delves into every aspect of the Alfa Romeo 156, including: * **General Information:** Essential details about your vehicle. * **Engine Service and Overhauling:** Thorough guidance on maintaining and rebuilding your engine. * **Transmission:** Comprehensive coverage of transmission systems, including troubleshooting and repair. * **Chassis:** Detailed information on the vehicle's frame, suspension, and other structural components. * **Body:** Guidance on bodywork repair, maintenance, and restoration. * **Wiring:** Detailed wiring diagrams and explanations for understanding your vehicle's electrical system. * **Fuel System:** In-depth information on fuel system components, troubleshooting, and repair. * **Emission Control:** Guidance on understanding and maintaining your vehicle's emission control system. * **Induction:** Information on air intake systems and related components. * **Mechanical:** Comprehensive coverage of mechanical systems and components. * **Control System:** Detailed explanations of your vehicle's control systems. * **Transmission and Differentials:** Information on transmission and differential systems, including troubleshooting and repair. * **Troubleshooting and Diagnostics:** Step-by-step guidance on diagnosing common vehicle problems. * **Steering and Suspension:** Detailed information on steering and suspension systems, including troubleshooting and repair. * **Brakes:** Comprehensive coverage of brake systems, including troubleshooting and repair. * **ABS:** Information on your vehicle's Anti-lock Braking System. * **Full Specifications and Torque Settings:** Precise specifications and torque settings for all components. * **Service Work:** Guidance on performing routine maintenance and service procedures. This manual equips you with the knowledge to diagnose engine fault symptoms, evaluate the best repair approach, test suspected parts using professional techniques, understand engine management systems, and verify wiring diagrams. You can use this information to communicate effectively with mechanics, ensure you receive the best service, and even troubleshoot minor issues yourself.

The Alfa Romeo 156, produced from 1997 to 2007, was a compact executive car that marked a significant turning point for the Italian marque. It was the first car designed under the leadership of former Ferrari designer, Walter de Silva, and introduced a bold new design language that emphasized sharp lines, muscular curves, and a distinctive "shield" grille. This design not only made the 156 visually striking but also provided a more aerodynamic and efficient profile compared to its predecessors. The 156's success was further bolstered by its dynamic handling and powerful engine options. The car offered a wide range of petrol and diesel engines, ranging from the economical 1.6-liter to the powerful 3.2-liter V6. Beyond its visual appeal and performance, the Alfa Romeo 156 boasted a spacious and well-appointed interior. The cabin featured high-quality materials and ergonomic design, creating a comfortable and enjoyable driving experience. The 156 also offered a range of standard and optional features, including power windows, power steering, air conditioning, and a premium sound system. The 156's success was not only measured in sales figures but also in its accolades, including the prestigious "European Car of the Year" award in 1998. However, despite its positive reception, the 156 faced competition from established rivals like the BMW 3 Series and the Mercedes-Benz C-Class. Nonetheless, the 156 left a lasting mark on the automotive world, representing a revival of Alfa Romeo's design and performance heritage. The 2003-2007 model years saw refinements to the exterior, interior, and engine lineup, contributing to the car's enduring popularity.