Ball Joint, Checking
WARNING: This page is about a different car, the 2023 Volkswagen Arteon. However, it is still accessible from the selected car via links, so may be relevant.
Axial Play, Checking
-- Forcefully pull the control arm down in the -direction of the arrow- and press it up again.
Radial Clearance, Checking
-- Forcefully push the lower part of wheel inward and outward in the -direction of the arrow-.
CAUTION:
There should not be any noticeable or visible "play" in either of the two checks.
Pay attention to the ball joint while performing checks.
Make allowance for any wheel bearing play or "play" in the upper strut mount
Check the rubber boot for damage and replace the lower ball joint, if necessary.