Octavia Mk2
| Connection diagram for coolant hoses |
| Vehicles without auxiliary heating. |
| 1 - | Expansion reservoir |
| 2 - | Coolant hose |
| q | from EGR valve -N18- with EGR potentiometer -G212- |
| 3 - | Exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212- |
| 4 - | Heat exchanger for heating |
| 5 - | Gearbox oil cooler |
| q | only for automatic gearbox |
| 6 - | Coolant hose |
| q | from EGR valve -N18- with EGR potentiometer -G212- |
| 7 - | Top coolant hose |
| 8 - | Bottom coolant hose |
| 9 - | Radiator |
| 10 - | Engine oil cooler |
| 11 - | Coolant regulator housing |
| 12 - | Cylinder head/cylinder block |
| 13 - | Coolant pipe |
| 14 - | Coolant pump |
| 15 - | Intake manifold |
| Vehicles with auxiliary heating. |
| 1 - | Expansion reservoir |
| q | with cap |
| q | Testing the pressure relief valve in the cap → Chapter |
| 2 - | Coolant hose |
| q | from EGR valve -N18- with EGR potentiometer -G212- |
| 3 - | Non-return valve |
| 4 - | Exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212- |
| 5 - | Non-return valve |
| q | integrated into the coolant hose |
| q | not visible from the outside |
| 6 - | Heat exchanger for heating |
| q | after replacing, top with new coolant |
| 7 - | Coolant shut-off valve of heating system -N279- |
| 8 - | Gearbox oil cooler |
| q | only on vehicles with automatic gearbox |
| 9 - | Coolant hose |
| q | from EGR valve -N18- with EGR potentiometer -G212- |
| 10 - | Top coolant hose |
| 11 - | Bottom coolant hose |
| 12 - | Radiator |
| 13 - | Engine oil cooler |
| 14 - | Coolant regulator housing |
| 15 - | Cylinder head/cylinder block |
| 16 - | Coolant pipe |
| 17 - | Auxiliary heating |
| q | only for additional equipment |
| 18 - | Coolant pump |
| 19 - | Coolant hose |
| 20 - | Intake manifold |
