How to fix a faulty cooling system in an Audi 80?

I have a 2002 Audi 80 and I am experiencing issues with the car's cooling system. The temperature gauge keeps rising and I can see leaking coolant under the car. What could be causing this and how can I fix it?

First, you should check for any visible leaks or cracks in the cooling system components, such as hoses or the radiator. If there are no obvious signs, then the issue might be with the water pump. It could be clogged or damaged, causing the coolant to not circulate properly.