This comprehensive AUDI A4 S4 parts manual covers the model years 2003, 2004, 2005, and 2006. It provides detailed information on all parts and components of the vehicle, making it an indispensable resource for both professional mechanics and DIY enthusiasts. The manual includes detailed diagrams and illustrations, allowing for easy identification and proper installation of parts. It is an invaluable resource for finding the right parts for your vehicle, ensuring that you get the correct fit and specifications for your A4 S4.

The Audi A4 and S4, produced from 2003 to 2006, represent the B6 generation of the popular compact executive car. These models were offered in a variety of body styles: sedan, Avant (wagon), and Cabriolet (convertible). The A4, known for its refined driving experience and sleek design, served as the foundation for the performance-oriented S4. Fueled by a 4.2-liter V8 engine, the S4 delivered a thrilling driving experience with its powerful acceleration and sporty handling. Both the A4 and S4 were praised for their comfortable interiors, high-quality materials, and advanced technology features for the time.

The 2003-2006 Audi A4 and S4 offered a range of engine options designed to cater to diverse driving preferences. The A4 was available with a choice of four-cylinder and V6 gasoline engines, while the S4 was exclusively powered by the potent 4.2-liter V8. These engines were paired with either a six-speed manual or a six-speed Tiptronic automatic transmission. The A4 and S4 also featured Audi's renowned quattro all-wheel drive system, providing enhanced traction and stability in various weather conditions. The design of the B6 generation brought a more modern and sophisticated aesthetic to the A4, with its sharp lines and flowing curves. Inside, the cabin was characterized by its driver-focused layout, premium materials, and a comprehensive array of features, including a multi-function steering wheel, climate control, and optional navigation systems. The 2003-2006 Audi A4 and S4 represented a significant step forward in the brand's evolution, offering a compelling combination of performance, luxury, and technology that continues to be appreciated today.