A3 Mk2
| Diagram of coolant hose connections |
| Vehicles with manual gearbox |
Note| t | Incorporation of coolant circuit with auxiliary heater → Rep. Gr.82. |
| t | -Arrows- show direction of coolant flow. |
| 1 - | Radiator |
| 2 - | Continued coolant circulation pump -V51- |
| 3 - | Coolant pump |
| 4 - | Thermostat |
| 5 - | Engine oil cooler |
| 6 - | Cylinder head and cylinder block |
| 7 - | Turbocharger |
| 8 - | Coolant expansion tank |
| q | With filler cap |
| q | Checking pressure relief valve in filler cap → Chapter |
| 9 - | To auxiliary heater |
| q | Incorporation of coolant circuit with auxiliary heater → Rep. Gr.82 |
| 10 - | From auxiliary heater |
| q | Incorporation of coolant circuit with auxiliary heater → Rep. Gr.82 |
| 11 - | Heat exchanger for heater |
| 12 - | Coolant hose/pipe connection |
| Vehicles with dual clutch gearbox |
Note| t | Incorporation of coolant circuit with auxiliary heater → Rep. Gr.82 |
| t | -Arrows- show direction of coolant flow. |
| 1 - | Radiator |
| 2 - | Continued coolant circulation pump -V51- |
| 3 - | Coolant pump |
| 4 - | Thermostat |
| 5 - | Engine oil cooler |
| 6 - | Cylinder head and cylinder block |
| 7 - | Turbocharger |
| 8 - | Coolant expansion tank |
| q | With filler cap |
| q | Checking pressure relief valve in filler cap → Chapter |
| 9 - | To auxiliary heater |
| q | Incorporation of coolant circuit with auxiliary heater → Rep. Gr.82 |
| 10 - | From auxiliary heater |
| q | Incorporation of coolant circuit with auxiliary heater → Rep. Gr.82 |
| 11 - | Heat exchanger for heater |
| 12 - | Gearbox oil cooler |
| 13 - | Coolant hose/pipe connection |
| 14 - | Thermostat for gear oil cooler |
