What can cause the Audi 80 engine to overheat?

I noticed that my Audi 80's engine temperature is rising unusually high. What could be the reasons for this and how can I prevent it from happening again?

One potential cause could be a malfunctioning cooling system. It is important to regularly check and maintain the cooling system to prevent overheating.

Another possible reason could be a faulty thermostat. Make sure to have it checked and replaced if necessary.