What are the most common issues with the Kia Picanto's engine?

I recently purchased a used Kia Picanto and I'm worried about potential engine problems. What are some of the most common issues with this model's engine and how can I avoid them? Any advice would be greatly appreciated.

The Kia Picanto has had some issues with engine knocking, which can be caused by using low-quality fuel. Be sure to always use high-quality fuel from reputable gas stations to avoid this problem.

Another common issue is overheating due to a malfunctioning radiator fan. Keep an eye on your engine temperature gauge and if it starts to rise, pull over and let the car cool down before driving again.

Some Picanto owners have reported trouble with the timing belt, which can cause major engine damage if it breaks. Make sure to get it replaced according to the manufacturer's recommended schedule.