This comprehensive service repair manual provides detailed instructions and technical information for the Audi 90, covering model years 1988 to 1991. It's a valuable resource for both professional mechanics and DIY enthusiasts seeking to maintain and repair their vehicles.

The manual includes a wealth of information, covering everything from basic maintenance procedures to complex repairs. You'll find detailed instructions on engine components, clutch and gearbox systems, propeller shafts, rear axles, front axles, suspensions, wheels and tires, steering systems, brakes, bodywork and chassis frame, maintenance schedules, and the electrical and electronic systems.

Each repair procedure is illustrated with clear step-by-step instructions and diagrams, making it easier to understand and follow. The manual also includes technical schematics and diagrams to further clarify repair procedures. Whether you're tackling a routine oil change or a more complex engine repair, this manual will equip you with the knowledge and guidance you need to confidently perform repairs on your Audi 90.

The Audi 90, produced from 1984 to 1991, marked a pivotal moment in Audi's history, ushering in a new era of aerodynamic design and technological advancements. This mid-size executive car, positioned above the Audi 80, was the first Audi to adopt the iconic "torpedo" design, showcasing its aerodynamic efficiency and sleek, modern aesthetic. Offered in both sedan and coupe body styles, the 90 showcased Audi's commitment to performance and luxury. While the 90 shared its platform with the Audi 80, it featured a larger engine range, including the powerful 2.3-liter five-cylinder engine that propelled the car to a top speed of 130 mph. The 90 also introduced features like a four-wheel independent suspension system, power steering, and a sophisticated dashboard design, further solidifying its reputation for cutting-edge automotive technology.

The 1988-1991 model years saw the introduction of the second generation Audi 90, further enhancing its already impressive features. This iteration featured a more angular and modern design, along with a revised interior that focused on comfort and ergonomics. The 90 continued to offer a range of powerful engines, including the 2.0-liter turbocharged four-cylinder and the 2.3-liter five-cylinder, offering a blend of performance and efficiency. However, the most notable change was the introduction of the Audi Quattro all-wheel-drive system, which significantly enhanced the 90's handling and traction, particularly in challenging weather conditions. This marked a significant achievement for Audi, solidifying its reputation for innovative automotive technology and driving performance. The 1988-1991 Audi 90 remains a testament to Audi's engineering prowess and design aesthetics, a car that continues to be admired for its sleek lines, powerful performance, and innovative features.