Why is my Audi making a grinding noise when I accelerate?

For the past few days, my Audi has been making a grinding noise whenever I accelerate. It doesn't make the noise at low speeds, but as soon as I start to pick up speed, the grinding sound starts. What could be causing this issue and how can I fix it?

This could be a sign that your brake pads are worn out. When the brake pads wear down, they start to make a grinding noise as metal rubs against metal. It's important to get this checked out as soon as possible, as worn brake pads can cause damage to other parts of your car.