Where is the thermostat on a 1999 vw beetle 2.0 engine?

On a 1999 VW Beetle with a 2.0 engine, the thermostat is located near the engine block, specifically in the coolant flange at the end of the upper radiator hose. To access it, you'll typically need to remove the upper radiator hose and the housing that holds the thermostat. It's advisable to consult a repair manual for detailed instructions and ensure safety during the replacement process.