How to check the cooling system in an Audi 80?

I have an Audi 80 and I want to make sure that the cooling system is working properly. How can I check it and what signs should I look out for if there are any issues?

First, make sure to check the coolant level in the reservoir tank. It should be within the maximum and minimum marks. If it is low, top it up with a 50/50 mixture of coolant and water. Next, inspect the radiator for any visible leaks or damage. Also, check the hoses and connections for any signs of leaks. If you notice any leaks, have them repaired immediately. Finally, take your car for a test drive and monitor the temperature gauge. If it goes above the normal operating temperature, there may be an issue with your cooling system.