This workshop repair service manual provides comprehensive technical information for the Audi 80/90, specifically models built on the B3 chassis, covering production years from 1986 through 1991. This extensive guide encompasses all trim levels and engine variants, reflecting Audi's commitment to engineering quality and reliability during this era. The Audi 80/90 B3 was known for its sophisticated design, comfortable interior, and the availability of the advanced Quattro all-wheel-drive system, making it a significant model in Audi's history and a popular choice for those seeking a premium compact executive vehicle.

This manual serves as an indispensable resource for owners, mechanics, and technicians, offering detailed procedures for maintenance, diagnosis, and repair. It covers all major mechanical and electrical systems, including engine overhaul, fuel injection systems, drivetrain components, suspension, brakes, and the electrical system, complete with wiring diagrams. Within its pages, you will find step-by-step repair instructions, troubleshooting guides for common issues, essential technical specifications, and critical torque values, ensuring that the Audi 80/90 B3 can be maintained and repaired effectively to preserve its performance and longevity.