How to fix the coolant leak in my Audi 80?

I noticed a small pool of coolant under my Audi 80 after it was parked for a few hours. I also saw some yellow-green residue around the radiator. What could be causing this leak and how can I fix it?

The most common cause of coolant leaks in the Audi 80 is a damaged radiator. Inspect the radiator for any visible cracks or holes and replace it if necessary. Additionally, check the radiator hoses for any signs of wear and tear as they could also be the source of the leak.

Another possible cause of the coolant leak could be a faulty water pump. The water pump is responsible for circulating coolant through the engine and any issues with it can result in leaks. You may need to get the water pump replaced to fix the leak.