The 1999 Audi A4, built on the B5 platform, represents a significant era in German automotive engineering, known for its sophisticated multi-link suspension and available quattro all-wheel drive system. This compact executive sedan and wagon offered a blend of performance and luxury, competing with established European rivals. The A4 was praised for its refined interior and clean design, reflecting Audi's commitment to quality and technological advancement, embodying the brand's "Progress through Technology" philosophy.

This comprehensive service and repair manual provides detailed information for the 1999 Audi A4 and the broader B5 platform, covering a wide array of systems including engines, transmissions, drivetrain, suspension, steering, brakes, electrical components, HVAC, and bodywork. It offers step-by-step procedures for basic maintenance, complex repairs, and overhauls, alongside diagnostic guidance and troubleshooting charts. This manual is an essential resource for owners and technicians seeking to maintain, diagnose, and repair the vehicle effectively, ensuring its longevity and optimal performance.