Why does the engine of my Audi A4 make a strange noise?

I recently noticed that my Audi A4's engine has been making a strange noise. It sounds like a low humming sound and it gets louder when I accelerate. What could be causing this issue and how can I fix it?

Hi there Maria, it's normal for engines to make a bit of noise, but if it's getting louder or sounds unusual, it's best to have it checked by a mechanic. It could be something as simple as a loose belt or something more serious like engine damage.

I had a similar issue with my Audi A4 and it turned out to be a problem with the exhaust system. It's important to get this checked out as it can affect your car's performance and emissions.