2006 2.5T coolant leak question

[leatherntextilec70]

Besides the thermostat o ring or thermostat cover, other sources for a leak to look for would be the thermostat housing to cylinder head, the temp sensor, and there is another port below that with the rubber hose that goes to the fitting on the intake manifold. My manifold has been off before to service the pcv system and one of the factory clamps was replaced on that rubber hose with a regular hose clamp that had a slight leak that I fixed before noticing the thermostat cover leak. So there are a few places where coolant can leak from but its all in that area and related to the thermostat housing