The Audi 90, specifically the Type 85 (B2) variant produced between 1988 and 1992, represents a premium compact executive sedan known for its sporty handling and the groundbreaking Quattro all-wheel-drive system. This model distinguished itself with a clean, angular European design, a focus on driver engagement, and robust build quality, offering discerning drivers performance, luxury, and all-weather capability. Key differentiators included its standard Quattro AWD, sophisticated styling, refined interior, and powerful inline-five engine options, positioning it as a strong competitor in its segment.

This comprehensive factory service manual provides detailed information for the maintenance, repair, and troubleshooting of your Audi 90. It covers essential systems including engine mechanicals, fuel injection, ignition, emissions control, cooling, lubrication, exhaust, manual and automatic transmissions, drivetrain components, suspension, steering, brakes, electrical systems, and body/interior components. With over 1500 pages of technical specifications, torque values, clearances, wiring diagrams, and step-by-step illustrated repair procedures, this manual is an indispensable resource for owners, mechanics, and technicians aiming to preserve the integrity and performance of their vehicle.