Leon Mk1
| Diagram of coolant hose connections |
| 1 - | Expansion tank |
| 2 - | Intake manifold |
| 3 - | Heat exchanger for heater |
| 4 - | ATF cooler |
| q | Only vehicles with a dual clutch gearbox |
| 5 - | Thermostat housing |
| 6 - | Radiator/cooler |
| 7 - | Engine oil cooler |
| 8 - | Coolant circulation pump -V50- |
| q | Removing and installing → Chapter. |
| 9 - | Turbocharger |
| 10 - | Cylinder head and cylinder block |
| q | If renewed, refill system with fresh coolant. |
| 11 - | Coolant pump |
