Why is my Audi A8's transmission making a whining noise?

I've noticed that my Audi A8's transmission has been making a strange whining noise recently. What could be causing this and how can I fix it?

The most likely cause of this noise is low transmission fluid. Check your fluid levels and top off if necessary. If the noise persists, it could be a sign of a more serious issue, and you should take your car to a mechanic for further inspection.

Another potential cause could be worn out transmission bearings. As a preventative measure, it's important to have your bearings checked and replaced if needed every 50,000 miles or so. If the noise only occurs when your car is in gear, this could be the issue.

If you've recently had your transmission fluid changed, the loud whining noise could be due to air bubbles in the system. This is easily fixable by running your car for a bit and then checking the fluid levels again to make sure they are at the proper level.