WARNING: This page is about a different car, the 2018 Volkswagen Jetta, 2017 Volkswagen Jetta, and 2016 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
-- Engage the intermediate plate -1- on the sealing flange -2- -arrow B-.
-- Push the intermediate plate on the alignment sleeves -A arrows-.