Where is e320 CDI thermostat?

The thermostat on a Mercedes-Benz E320 CDI is typically located near the engine block, specifically at the front of the engine where the upper radiator hose connects. It is housed within a thermostat housing, which is usually bolted to the engine. Accessing it may require removing some engine covers or components for better visibility and space to work. Always consult the vehicle's service manual for precise location and removal instructions.