What is the most common cause of engine overheating in an Audi A3?

I have noticed that my Audi A3's engine temperature has been running high lately. What could be the cause of this and how can I prevent it?

The most common cause of engine overheating in an Audi A3 is a malfunctioning thermostat. It is responsible for regulating the engine's temperature and if it is not functioning properly, it can cause the engine to overheat. It is recommended to have your thermostat checked and replaced if necessary by a certified mechanic.

Another possible cause of engine overheating in an Audi A3 could be low coolant levels. Check your coolant reservoir to make sure it is at the proper level and top it off if needed. Also, inspect the hoses for any leaks or damage. If low coolant levels are a recurring issue, it may indicate a bigger problem that should be inspected by a professional.