How to troubleshoot engine overheating issue in Audi A3?

I have been experiencing engine overheating while driving my Audi A3. This issue causes the temperature gauge to climb to the red zone. What could be causing this problem and how can it be fixed?

First, check the coolant level in your Audi A3. If it is low, top it up with the recommended coolant and check for any leaks. If the coolant level is normal, there may be an issue with the cooling system such as a faulty thermostat or water pump.