How do I troubleshoot the cooling system in an Audi 80?

I recently noticed that my Audi 80 is having issues with its cooling system. The temperature gauge keeps rising and my car is overheating. What are some steps I can take to diagnose and fix this issue?

First, check the coolant level and add more if needed. If the coolant is at the right level, the next step is to check for leaks in the system. This can be done by pressure testing or visually inspecting the hoses, radiator, and water pump. It's also a good idea to check the thermostat and make sure it's functioning properly.

If there are no visible leaks and the coolant level is fine, the issue could be with the water pump. This component is responsible for keeping the coolant flowing through the system. If it is faulty, it can cause overheating. It's best to have a professional inspect and replace the water pump, if needed.