Why does my Kia Picanto engine make a knocking sound?

I've noticed that my Kia Picanto's engine makes a knocking sound. Is this something I should be concerned about?

It is possible that the knocking sound is caused by low oil levels. Check your oil levels and top up if necessary.

Another possible cause of the knocking sound could be worn out engine bearings. It is recommended to get your car checked by a mechanic.

If the knocking sound only occurs when the engine is cold, it could be due to the use of incorrect oil viscosity. Check your owner's manual for the recommended oil viscosity for your Kia Picanto.