Golf Mk4
| Parts of cooling system - engine side |
| 1 - | Upper coolant pipe |
| q | Clipped onto bulkhead |
| 2 - | From cylinder head breather pipe |
| 3 - | To heater valve |
| 4 - | From heat exchanger. |
| q | Coolant hose schematic diagram → Chapter. |
| 5 - | To top of radiator |
| 6 - | ATF cooler |
| 7 - | T piece |
| q | Only vehicles with automatic gearbox. |
| 8 - | Oil cooler |
| q | Removing and installing → Item. |
| 9 - | 10 Nm |
| 10 - | Coolant pipe |
| 11 - | O-ring |
| q | Renew. |
| 12 - | Toothed belt |
| q | Mark direction of rotation before removing. |
| q | Check for wear. |
| q | Do not kink. |
| q | Removing, installing and tensioning → Chapter. |
| 13 - | Coolant pump |
| q | Check for ease of movement. |
| q | If damaged or leaking, renew complete. |
| q | Removing and installing → Chapter. |
| 14 - | 10 Nm |
| 15 - | Expansion tank |
| 16 - | O-ring |
| q | Renew if damaged. |
| 17 - | Cap |
| 18 - | Throttle valve control module |
| q | Heated by coolant. |
| 19 - | Coolant distribution housing |
| q | Dismantling and assembling → Chapter. |
| 20 - | From bottom of radiator. |
| q | Coolant hose schematic diagram → Chapter. |
