What could be causing my Vauxhall Astra to constantly overheat?

My Vauxhall Astra seems to be overheating frequently, especially during long drives or in heavy traffic. What could be causing this issue and how can I fix it?

It is possible that there could be a problem with your car's cooling system. Have you checked the coolant levels and made sure there are no leaks?

Another possible cause could be a malfunctioning thermostat. Have a mechanic check and replace it if necessary.

Are you using the correct type of coolant for your car? Using the wrong type can also cause overheating.

Make sure your radiator and fans are functioning properly. Sometimes they can become clogged or damaged.