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Anyone who has ever replaced the upper control arms on a four-link vehicle from the VAG group will immediately know how to interpret the video title. The clamping screw for the upper ball joints, which is usually stuck, is usually not easy to remove. This is where this video comes in and shows how to do it if you want to be sure not to damage the steering knuckle. Heating with fire and induction is not possible, as otherwise a structural shift within the material occurs and the stability of the steering knuckle is no longer guaranteed. So the only good old mechanical options remain. Material removal, pressure and lubricant - of course luck and patience are also a must.... Enjoy watching the video and a happy new year to everyone! Your Dennis from Auto-Fieber