303-03B Engine Cooling - 1.6L EcoBoost (132kW/180PS) - Sigma 2014 Fiesta
General Procedures Procedure revision date: 08/12/2013

Cooling System Draining and Vacuum Filling

  1. WARNING: When releasing the cooling system pressure, cover the coolant expansion tank cap with a thick cloth.

    Release the cooling system pressure by slowly turning the coolant expansion tank cap between 2 and 3 turns.
  1. Refer to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation).
  1. WARNING: Be prepared to collect escaping fluid.

    General Equipment : Fluid Container
    General Equipment : Hose Clamp Remover/Installer
  1. General Equipment : Hose Clamp Remover/Installer

NOTE: NOTE: Steps 7 through 19 is required to remove any remaining air pockets from the cooling system.

  1. Install the vacuum cooling system filler and follow the manufacturer's instructions to fill and bleed the system.
    General Equipment : Cooling System Vacuum Tester and Refiller
  1. Recommended coolant concentration is 48/52 to 50/50 engine coolant to distilled water (freeze protection -34˚C to -37˚C [-30˚F to -34˚F]).
  1. Vehicles driven year-round in non-extreme climates should use a 48/52 to 50/50 (freeze protection -34˚C to -37˚C [-30˚F to -34˚F]) mixture of engine coolant and distilled water for optimum cooling system and engine protection.
  1. Fill the degas bottle to the MAX FILL line.
  1. Install the degas bottle cap until it contacts the hard stop.
  1. Turn the climate control system off.
  1. Start the engine and increase the engine speed to 3,500 rpm and hold for 30 seconds.
  1. Turn the engine off for and wait for 1 minute to purge any large air pockets from the cooling system.
  1. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.

    Check the engine coolant level in degas bottle and if necessary fill to the top of the MAX FILL line on the degas bottle if the engine is warm or to the top of the MIN FILL LEVEL if the engine is cold.
  1. Start the engine and let it idle until the engine reaches normal operating temperature and the thermostat is fully open. A fully open thermostat is verified by the cooling fan cycling on at least once.
  1. Increase the engine speed to 3,500 rpm and hold for 30 seconds.
  1. Allow the engine to idle for 30 seconds..
  1. Turn the engine off for 1 minute.
  1. Repeat steps 14 through 16 a total of 5 times to remove any remaining air trapped in the system.
  1. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury.

    Check the engine coolant level in degas bottle and if necessary fill to the top of the MAX FILL line on the degas bottle.