On-Vehicle Service: Fluid
WARNING: This page is about a different car, the 1999 Audi A8, 1998 Audi A8, and 1997 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
DO NOT use engine coolant anti-freeze or any other solution that can damage the vehicle paint.
Since clear water is usually not adequate for cleaning the glass, add a cleaning solution to the water. Use winterized windshield washer solvent during the cold season even though the vehicle is equipped with heated washer jets. It helps to keep your windshield clean and prevents the fluid from freezing in the winter. Follow the directions on the can for the correct amount to be used.