Coolant leak?

Hello,

It does sound like coolant is leaking. The coolant color for these VWs
In order to find the coolant leak you will have to visually inspect the cooling system. Check the hoses and connectors as well as the water pump gasket.

Also check the coolant level and refill as necessary.

You can also do a pressure test on the cooling system, that can make it easier to find the leak.
The pressure test pressurizes the cooling system to detect leak. If there is a leak the pressure will drop. It can also exaggerate the leak and make it easy to find.
Remember to do the test when the engine is cold.

Here is a helpful video of how to do the pressure test:

https://youtu.be/W8kra65m15c

https://www.2carpros.com/articles/radiator-pressure-test

Please let me know of any questions.
Thank you.