Coolant Hose Connection Diagram
- Expansion tank
- Cylinder head/cylinder block
- Cooler for Exhaust Gas Recirculation (EGR)
- Heater unit heat exchanger
- Oil cooler
- For transmission oil
- Only on vehicles equipped with DSG transmission
- Upper coolant hose
- Radiator
- Lower coolant hose
- Oil cooler
- For engine oil
- Coolant pump/thermostat