Can you bleed the coolant system on a mk4 fiesta 1.25 zetec?

Answer 1

The easiest and most common way to bleed any vehicle is to leave the radiator cap open while getting the engine to a high temperature.

However the Fiesta likely doesn't have a radiator cap so this may not be an option. The ideal place to bleed any cooling system is at the high point of the system, and I recommend you start by finding the coolant temperature sensor, usually near the thermostat housing. This can be a good place to bleed from because you can loose it partway and to allow the air out. You may be lucky enough to find a bleeder screw nearby, but many cars don't have one.

In any case, start by warming up the car fully by driving it, then very carefully loosen the sensor or bleeder screw. Use a rag to make sure any coolant that sprays out doesn't reach you. Now start the engine again and rev it to 2000rpm, wait for the coolant to come out in a steady stream and once it does continue for at least another 2-3 minutes.

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