Leon Mk2
| Diagram of coolant hose connections |
| 1 - | Expansion tank |
| 2 - | Coolant hose |
| q | From the preheating of the engine block ventilation preheater (Fitting location: on the intake manifold) |
| 3 - | Heating system heat exchanger |
| 4 - | Coolant hose |
| q | To the preheating of the engine block ventilation preheater (Fitting location: on the intake manifold) |
| 5 - | Thermostat housing |
| 6 - | Lower coolant hose |
| 7 - | Radiator |
| 8 - | Upper coolant hose |
| 9 - | Coolant pipe |
| 10 - | Cylinder head/cylinder block |
| 11 - | Coolant pump |
| 12 - | Intake manifold |
| q | To preheat the crankshaft sump breather |
