How to diagnose and fix coolant leak in Audi 80?

My Audi 80 is leaking coolant and I'm not sure how to diagnose and fix the issue. I've checked all visible hoses and connections but haven't found any obvious leaks.

First, check for signs of leakage under the vehicle. If you see a puddle, try to pinpoint the location and the color of the fluid. Usually, coolant is green, yellow, or orange and has a distinct smell. This can help determine where the leak is coming from.

Another possible cause of coolant leaks in an Audi 80 is a faulty water pump. You can check for this by running the engine and looking for any leaks near the pump. If you see any, it's best to replace the water pump as soon as possible to prevent engine damage.