Cooling Down

Just changed my coolant. Average running temperature has drop by about 10° Celsius. 

Before the change, running temp was between 80 - 90° Celsius.

After the change, temp is now between 70 - 80° Celsius. Only passes 80° Celsius. on extremely hot days

I do my coolant change every 2 years, and  I use this coolant for all my cars.

This costs RM18 per bottle/liter. The recommended mixture is 50% coolant and 50% water. The 206 needs 7 litres of  fluids. I use 3 litres of coolant and the rest with filtered, de-chlorinated water.

Peugeot/Citroen requires the use of a header tank when filling up the radiator. This is to ensure the radiator/cooling system is bled of air properly. The same results can be achieved by using any plastic bottle. Just ensure the mouth of the bottle fits the expansion tank.

 I searched my house and managed to find this bottle which is a perfect fit.

Cut out the bottom of the bottle in order to pour in the coolant.

You can either use a plastic bag or PTFE tape around the mouth of the expansion tank to make a perfect seal.

Drain out the old coolant by disconnecting the bottom radiator hose. Dun forget to open up both bleed screws. 

One bleed screw is on the pipe heading into the heater matrix

The other is on the Thermostat housing

Next is to flush the engine and radiator. This step is optional, depending on the condition of your coolant/cooling system. Flush, just insert a garden hose into the top and then bottom of the radiator and bottom hose and let the water run until clean water comes out from the radiator/radiator hoses. Next fill up the expansion tank with coolant. Close the bleed screws one by one once coolant comes out without any bubbles. First the thermostat housing bleed screw followed by the heater matrix.

Fill up the header tank with water and switch on the engine. Keep the engine running until no more bubbles appear.

Once no more bubbles, the process is finished. Remove the header tank, and check the coolant level. If there is too much coolant in the expansion tank, siphon it out.