Why is my Audi A7's engine making strange sounds?

I have noticed strange noises coming from my Audi A7's engine. It almost sounds like a grinding or rattling sound. What could be causing this and is it something I should be worried about?

It's possible that your engine has a faulty belt or pulley. This can create a grinding or rattling sound and should be checked by a mechanic as soon as possible.

Another possibility is that your engine is low on oil. This can also cause strange sounds and should be addressed promptly to avoid any potential damage.

If you have recently had any modifications or repairs done to your Audi A7, it's possible that something was not properly tightened or installed, leading to the strange noises. It's best to have a mechanic double check their work.