With Marks in the Cylinder Head Cover
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi A6 Quattro, 2017 Audi A6, and 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
-- Turn the intake camshaft with the :T40266 in direction of -arrow A- until the marks -1 and 2- align. Push the :T40271/2 in the chain sprocket splines in direction of -arrow B-.
-- Turn the exhaust camshaft with the :T40266 in direction of -arrow A- until the marks -1 and 2- align. Push the :T40271/1 in the chain sprocket splines in direction of -arrow B-. The mark -2- is offset slightly to the right.