Golf Mk4
| Coolant hose schematic diagram |
| 1 - | Expansion tank |
| 2 - | Throttle valve control module -J338- |
| 3 - | Heater unit heat exchanger |
| 4 - | Continued coolant circulation pump -V51- |
| 5 - | Gearbox oil cooler |
| q | Only on vehicles with automatic gearbox |
| 6 - | Radiator |
| 7 - | Bottom coolant hose |
| 8 - | Top coolant hose |
| 9 - | Thermostat housing |
| 10 - | Oil cooler |
| 11 - | Cylinder block |
| 12 - | Coolant pipe |
| 13 - | Coolant pump |
| 14 - | Cylinder head |