CV Joint, Checking for Function
WARNING: This page is about a different car, the 2021 Volkswagen Tiguan, 2020 Volkswagen Tiguan, 2019 Volkswagen Tiguan, and 2018 Volkswagen Tiguan. However, it is still accessible from the selected car via links, so may be relevant.
The CV joint is properly assembled, if the ball hub can be slid back and forth by hand over the entire length adjustment.