A4 Mk2
| Diagram of coolant hose connections |
| 1 - | Radiator |
| q | Removing and installing → Chapter |
| q | If renewed, refill system with fresh coolant |
| 2 - | Bleeder screw, 15 Nm |
| 3 - | Coolant pump |
| q | Removing and installing → Chapter |
| 4 - | Thermostat |
| q | Removing and installing → Chapter |
| q | Checking → Chapter |
| 5 - | Coolant pipe (rear) |
| q | Removing and installing → Chapter |
| 6 - | Bleeder hole |
| q | On coolant hose for heat exchanger |
| 7 - | Heat exchanger |
| q | If renewed, refill system with fresh coolant |
| 8 - | Coolant pipe (small) |
| q | Removing and installing → Chapter |
| 9 - | Filler cap |
| q | Checking pressure relief valve → Anchor |
| 10 - | Expansion tank |
| 11 - | Coolant pipe (front) |
| q | Removing and installing → Chapter |
| 12 - | Oil cooler |
