WARNING: This page is about a different car, the 2023 Volkswagen Atlas. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
Trim Removal Wedge:3409
Fig 1: Identifying Trim Removal Wedge
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
NOTE:
The removal and installing can take place with the seat still installed.