A4 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“ |