Audi A4 and Sedans 1999-05 Vacuum Diagrams Repair Guide
Access our free Vacuum Diagrams Repair Guide for Audi Cars 1999-05 through AutoZone Rewards. These diagrams include:
- Fig. Audi A4 2.8L Vacuum Diagram
- Fig. Audi A4 2.7L Vacuum Diagram
- Fig. Audi A4 1.8L Vacuum Diagram
- Fig. VW Passat 1.9L Vacuum Diagram
- Fig. VW Passat 2.8L Vacuum connections (top view)
- Fig. VW Passat 2.8L Vacuum connections (rear view)

Access our Audi Cars 1999-05 Vacuum Diagrams Repair Guide by creating an account or signing into your AutoZone Rewards account. Once you sign in, follow these instructions to access our Repair Guides.
- Add your vehicle in Manage My Vehicles.
- Enter your vehicle details.
- Click the “View More” button, and then click “Vehicle Repair Guides.”
- Select the chapter “Vacuum Diagrams Repair Guide”.