The compact executive vehicle, specifically the B6 generation (Typ 8E/8H) produced around the 2004 model year, represents a premium compact executive vehicle recognized for its sophisticated design, refined interior quality, and the availability of its renowned all-wheel-drive system. Competing in a segment with established luxury marques, the vehicle offered a range of powerful turbocharged and naturally aspirated engines, delivering performance from 130 horsepower up to 340 horsepower in the S4 variant. Its engineering emphasizes a balance of driving dynamics and comfort, making it a popular choice for discerning drivers seeking both performance and practicality in a sedan or wagon.

This comprehensive service and repair manual provides detailed, vehicle-specific information for the 2004 model, covering all models and repairs from A-Z. It encompasses extensive technical data, maintenance schedules, and step-by-step procedures for all major systems, including engine mechanicals, fuel, ignition, transmission (manual and automatic), brakes, suspension, steering, and electrical systems. Furthermore, it offers diagnostic guidance, troubleshooting trees, and information on known issues, equipping owners, mechanics, and technicians with the necessary knowledge to maintain, diagnose, and repair the vehicle accurately and efficiently.