Why does my Audi A5's engine make a knocking noise when idle?

I recently noticed a loud knocking noise coming from my Audi A5's engine when it's idling. Is this normal or is there something wrong with my car?

It's not normal for your engine to make knocking noises when it's idling. This could be a sign of a potential problem with your car's engine. It's best to get it checked by a professional mechanic as soon as possible.

The knocking noise could be caused by low oil levels or dirty oil. Make sure to check and change your oil regularly to prevent this issue.

If your Audi A5 has a turbocharged engine, the knocking noise could be caused by a worn out or faulty turbocharger. It's recommended to have it checked and replaced if necessary.