Why is my Kia Stonic's engine producing a loud knocking noise?

I've noticed that my Kia Stonic's engine has started making a loud knocking noise while idling. I'm worried that this could be a sign of a bigger problem. What could be causing this noise and what steps should I take to fix it?

It's possible that the knocking noise is due to low oil levels in your engine. Check your oil levels and top up if necessary. If the noise persists, it's best to take your car to a Kia service center for a thorough inspection.

Another potential cause for the knocking noise could be worn out engine bearings. These will need to be replaced by a professional mechanic. Avoid driving your car until the issue is resolved.

In some cases, the knocking noise could be a result of using low quality fuel. Try filling up with premium fuel from a reputable gas station and see if the noise goes away.