A4 Mk2
| Connection diagram for coolant hoses - vehicles without exhaust gas recirculation cooler and with auxiliary heater |
| 1 - | Radiator |
| q | Removing and installing → Chapter |
| q | If renewed, refill system with fresh coolant |
| 2 - | Thermostat |
| q | Checking → Anchor |
| q | Removing and installing → Chapter |
| 3 - | Coolant temperature sender -G62- |
| 4 - | Cylinder head/cylinder block |
| q | If renewed, refill system with fresh coolant |
| 5 - | Coolant pump |
| q | Removing and installing → Chapter |
| 6 - | Bleeder hole |
| q | On coolant hose for heat exchanger |
| 7 - | Heat exchanger for heater |
| q | If renewed, refill system with fresh coolant |
| 8 - | Expansion tank |
| q | With filler cap |
| q | Checking pressure relief valve in filler cap → Anchor |
| 9 - | Heater coolant shut-off valve -N279- |
| 10 - | Oil cooler |
| q | Removing and installing → Chapter |
| q | If renewed, refill system with fresh coolant |
| 11 - | Auxiliary heater |
| q | Removing and installing → Heating, ventilation, air conditioning system; Rep. Gr.82 |
