Cooling system device (petrol engine 1.6 l) (Peugeot 207)

1 - coolant expansion tank;
2 - liquid pump;
3 - screw for bleeding the heating system;
4 - heater radiator;
5 - liquid outlet pipe;
6 - screw for bleeding the coolant outlet chamber;
7 - thermostat;
8 - cooling system radiator.