Why is my Audi A6 making a high-pitched whining noise?

I've noticed that my Audi A6 is making a high-pitched whining noise while accelerating. What could be the cause of this and how can I fix it?

It's possible that you have a faulty serpentine belt or tensioner. This could cause the whining noise while accelerating. I would recommend taking your car to a certified mechanic for inspection and potential replacement.

Another potential cause could be a failing wheel bearing. This can also cause a high-pitched noise while driving. I suggest having a mechanic check your wheel bearings and replace any that are found to be faulty.

One more thing to check is your power steering fluid. If it's low or contaminated, it can cause a whining noise. I recommend checking the fluid level and if needed, flushing and replacing the fluid.