What is the main cause of engine overheating in an Audi 80?

I recently noticed that my Audi 80's engine has been overheating, especially during long drives. What could be the possible causes and how can I prevent it?

The most common cause of engine overheating in an Audi 80 is a low coolant level. Make sure to regularly check and top off the coolant to prevent overheating.

Another possible cause is a faulty radiator or cooling fan. If your car's temperature gauge is rising even though there is enough coolant, it might be time to have your radiator and cooling fan checked or replaced.

Dirty or clogged air filters can also contribute to engine overheating. Make sure to replace or clean your air filters regularly to keep your engine running smoothly.