What is the most common cause of engine overheating in the Audi A1?

I've noticed my Audi A1's engine has been overheating recently, what could be causing this?

The most common cause of engine overheating in the Audi A1 is a malfunctioning coolant system. It is important to regularly check your coolant levels and make sure there are no leaks in the system.

Another possible cause could be a faulty radiator fan. If the fan is not working properly, it may not be able to keep the engine cool. It's important to have the fan checked and replaced if necessary.