Where is a thermostat on a Peugeot 407 hdi?

On a Peugeot 407 HDi, the thermostat is typically located near the engine block, often at the junction of the upper radiator hose and the engine. To access it, you may need to remove the engine cover and possibly some other components for better visibility. It's advisable to consult the vehicle's service manual for specific details and diagrams related to your model.