This manual covers the Audi 80 and Audi 90 models from the second generation (Type 89/8B) produced between 1986 and 1991. These compact executive cars, available as sedans and wagons, were recognized for their solid German engineering, aerodynamic design, and the pioneering Quattro all-wheel-drive system. Offering a range of inline-4 and inline-5 engines, from 1.6L to 2.3L, and featuring both front-wheel drive and the advanced Quattro drivetrain, these vehicles represented a significant step in Audi's commitment to innovation and quality in the competitive luxury compact segment.

This comprehensive factory service manual provides detailed information essential for the maintenance, diagnosis, and repair of your Audi 80/90. It covers all major systems, including powertrain, transmission, drivetrain, chassis, and electrical components, along with body and HVAC systems. Within its pages, you will find step-by-step procedures for routine maintenance, in-depth troubleshooting guides, diagnostic strategies, and precise technical specifications. This manual is an indispensable resource for owners, mechanics, and technicians aiming to preserve the performance, reliability, and longevity of these classic Audi vehicles.