Schematic diagram of cooling system 10 11 15 14 13 16 9 1 2 3 4 5 7 6 8 12 1 Water pump housing with 9 Expansion tank integrated thermostat housing 10 Over/underpressure valve 2 Water pump impeller 11 Coolant filler neck 3 Engine oil cooler 12 Heating lead and return line 4 Crankcase 13 Measuring point for cooling water temperature 5 Exhaust manifold, liquid-cooled 14 Bleed screw on turbocharger 6 Turbocharger, liquid-cooled 15 Raw water pump 7 Thermostat 16 Intercooler 8 Engine coolant/raw water heat exchanger 24