WARNING: This page is about a different car, the 2018 Audi S6, 2017 Audi S6, and 2016 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of AUDI OF AMERICA, LLC
-- Apply sealant beads -1 through 3- to the clean camshaft housing surfaces as shown in the illustration.