Where is the thermostat located on a 2001 Audi A6 28 Quatro?

On a 2001 Audi A6 2.8 Quattro, the thermostat is typically located near the engine block, specifically in the housing where the upper radiator hose connects to the engine. To access it, you may need to remove the engine cover and some surrounding components for better visibility and clearance. Always consult the vehicle’s service manual for detailed instructions and diagrams specific to your model.