A4 Cabriolet Mk2
| Parts of cooling system |
| Connection diagram for coolant hoses - vehicles without auxiliary heater |
| 1 - | Radiator |
| q | Removing and installing → Chapter |
| q | If renewed, refill system with fresh coolant |
| 2 - | Thermostat |
| q | Removing and installing → Chapter |
| q | Checking → |
| 3 - | Coolant pump |
| q | Removing and installing → Chapter |
| 4 - | Cylinder head/cylinder block |
| q | If renewed, refill system with fresh coolant |
| 5 - | Exhaust gas recirculation cooler |
| q | If renewed, refill system with fresh coolant |
| q | Removing and installing → Chapter |
| 6 - | Connection |
| 7 - | Coolant temperature display sender -G2-/coolant temperature sender -G62- |
| 8 - | Heat exchanger |
| q | If renewed, refill system with fresh coolant |
| 9 - | Bleeder hole |
| 10 - | Expansion tank |
| q | With filler cap |
| q | Checking pressure relief valve in filler cap → |
| 11 - | Oil cooler |
| q | If renewed, refill system with fresh coolant |
| q | Removing and installing → Chapter „Removing and installing oil filter bracket with oil cooler“ |
| Connection diagram for coolant hoses - vehicles with auxiliary heater |
| 1 - | Radiator |
| q | Removing and installing → Chapter |
| q | If renewed, refill system with fresh coolant |
| 2 - | Thermostat |
| q | Removing and installing → Chapter |
| q | Checking → |
| 3 - | Coolant pump |
| q | Removing and installing → Chapter |
| 4 - | Cylinder head/cylinder block |
| q | If renewed, refill system with fresh coolant |
| 5 - | Exhaust gas recirculation cooler |
| q | If renewed, refill system with fresh coolant |
| q | Removing and installing → Chapter |
| 6 - | Connection |
| 7 - | Coolant temperature display sender -G2-/coolant temperature sender -G62- |
| 8 - | Heat exchanger |
| q | If renewed, refill system with fresh coolant |
| 9 - | Bleeder hole |
| 10 - | Non-return valve |
| 11 - | Expansion tank |
| q | With filler cap |
| q | Checking pressure relief valve in filler cap → |
| 12 - | Auxiliary heater |
| 13 - | Circulation pump -V55- |
| 14 - | Oil cooler |
| q | If renewed, refill system with fresh coolant |
| q | Removing and installing → Chapter „Removing and installing oil filter bracket with oil cooler“ |
