Golf Mk4
| Coolant hose schematic diagram |
| 1 - | Expansion tank |
| 2 - | Coolant pump |
| 3 - | Intake manifold |
| 4 - | Throttle valve module -J338- |
| 5 - | Heater valve |
| 6 - | Heat exchanger for heater unit |
| 7 - | Coolant distributor housing with map-controlled engine cooling thermostat -F265-. |
| 8 - | Upper coolant hose |
| 9 - | Lower coolant hose |
| 10 - | Radiator |
| 11 - | Engine oil cooler |
| 12 - | Cylinder head/cylinder block |
| 13 - | Coolant pipe |