Where is my engine thermostat on my 2001 BMW 325 Ci with the 6 cyl.?

It is mounted on the cylinder head at the front of the engine, right above water pump. The thermostat and housing are one part replaced as a unit. It has the 2 coolant hoses going to it. Note that the 3-Series has an electrically heated engine thermostat, so there is a connector to disconnect.