How can I fix a stuck door hinge on my Audi 80?

I'm having trouble with the door hinge on my Audi 80. Whenever I try to open or close the door, it gets stuck and requires a bit of force to fully open or close. How can I fix this issue? I have already tried lubricating the hinge with WD-40, but it only provides temporary relief.

One possible solution is to tighten the screws on the hinge to ensure it is securely attached to the door and the frame. You should also check and adjust the alignment of the hinge if necessary. Sometimes, a simple adjustment can fix the issue.