Installing The Seal For The Rear Flange Shaft
WARNING: This page is about a different car, the 2010 Audi A5. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of AUDI OF AMERICA, LLC
-- Lightly coat the shaft seal on the outer circumference with oil and then install it.
-- Fill area between sealing lip and dust lip halfway with sealing grease G 052 128 A1.