Why does my Audi A4 engine make a knocking noise?

I've noticed a knocking noise coming from my Audi A4's engine while driving. What could be causing this and is it something to be concerned about?

Hey Jane, thanks for reaching out. A knocking noise in your engine could be caused by a variety of reasons. It could be a sign of low oil levels, worn out engine components, or even something as simple as a loose bolt or nut. It's always best to get it checked out by a mechanic to properly diagnose the issue.

Hi Jane, I had a similar issue in my Audi A4 and it turned out to be a faulty fuel injector. I would recommend taking it to a trusted mechanic to get it checked out and avoid potential engine damage.

Hey Jane, I've had an Audi A4 for years and have experienced a knocking noise before. It turned out to be a faulty engine mount, which is a relatively easy and inexpensive fix. But it's always best to get it checked out just in case.