What is the most common cause of engine failure in Volkswagen Polo?

I've been having issues with my Volkswagen Polo's engine lately, and I'm wondering what the most common cause of engine failure is in these cars. I want to make sure I'm taking proper precautions to avoid any further issues.

One of the most common causes of engine failure in Volkswagen Polo is a faulty timing belt. It is important to have your timing belt replaced according to the recommended schedule.

Another common cause of engine failure is a dirty or clogged fuel filter. Make sure to have your fuel filter changed regularly to avoid any potential issues.

Low oil levels can also lead to engine failure in Volkswagen Polo. It is important to regularly check your oil levels and top up as needed.