Welcome to the comprehensive service and repair manual for the A4, first generation (B5), covering model years 1997 through 2001. This manual details the engineering quality and understated European elegance that defined this compact executive sedan and wagon. With a focus on driver engagement and refined comfort, the B5 A4 offered a range of sophisticated powertrain options, including efficient inline-4 engines and potent V6 variants, paired with front-wheel drive or the acclaimed all-wheel-drive system. Its design philosophy emphasized a premium feel, earning it recognition on lists such as Car and Driver's Ten Best.

This manual provides exhaustive information for maintaining and repairing your A4. It covers all essential systems, including engine mechanicals, engine management, transmission, drivetrain, suspension, brakes, steering, electrical systems, HVAC, and body components. Detailed procedures for routine maintenance, troubleshooting, component replacement, and diagnostic testing are included, along with critical specifications and torque values. Whether you are performing routine servicing or in-depth repairs, this guide serves as an indispensable resource for owners, mechanics, and technicians, ensuring the longevity and optimal performance of your vehicle.