Golf Mk5
| Connection diagram for coolant hoses in vehicles with auxiliary heating, engine codes CAYB, CAYC |
| 1 - | Expansion tank |
| 2 - | Radiator |
| q | For exhaust gas recirculation |
| 3 - | Heat exchanger for heater |
| q | With quick-release coupling |
| 4 - | Cylinder head and cylinder block |
| 5 - | Engine oil cooler |
| 6 - | Coolant circulation pump -V178- |
| 7 - | Upper coolant hose |
| q | With quick-release coupling |
| 8 - | Radiator |
| 9 - | Lower coolant hose |
| q | With quick-release coupling |
| 10 - | 4/2-way valve with thermostat |
| q | Removing and installing → Rep. gr.19 |
| 11 - | Coolant pump/thermostat |
| 12 - | Circulation pump -V55- |
| q | Removing and installing → Chapter |
| 13 - | Auxiliary heater Thermo Top V |
| q | Removing and installing → Chapter |