A3 Mk2
| Diagram of coolant hose connections |
Note| The illustration shows the connections for a vehicle with engine code BGU and manual gearbox. |
| 1 - | Radiator |
| q | Removing and installing → Chapter |
| q | If renewed, refill system with fresh coolant |
| 2 - | Thermostat |
| q | Removing and installing → Chapter |
| q | Checking → Anchor |
| 3 - | Coolant pump |
| q | Removing and installing → Chapter |
| 4 - | Cylinder head/cylinder block |
| q | If renewed, refill system with fresh coolant |
| 5 - | Expansion tank |
| q | With filler cap |
| q | Checking pressure relief valve in filler cap → Anchor |
| 6 - | Intake manifold with heating for throttle valve housing |
| 7 - | Heat exchanger (for heating system) |
| q | If renewed, refill system with fresh coolant |
| 8 - | Oil cooler |
| q | Removing and installing → Item |
