Leon Mk2
| Coolant hose schematic diagram: Engine codes ASZ, BTB |
| 1 - | Cylinder block/cylinder head |
| 2 - | Radiator |
| q | For exhaust gas recirculation. |
| 3 - | Shut-off valve for auxiliary heater |
| 4 - | Oil cooler |
| 5 - | Connection |
| 6 - | Coolant circulation pump -V50- |
| 7 - | Heat exchanger for heater unit |
| 8 - | Additional heat exchanger |
| q | Only vehicles with optional equipment. |
| 9 - | Expansion tank |
| 10 - | Return hose with inside throttle |
| 11 - | Heat exchanger for fuel cooler |
| 12 - | Upper coolant hose |
| 13 - | Additional cooler for heat exchanger |
| 14 - | Radiator |
| 15 - | Lower coolant hose |
| 16 - | Coolant pipe |
| 17 - | Coolant pump |
