Removal And Installation
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Release the pressure in the cooling system by slowly turning the pressure relief cap one half-turn counterclockwise. When the pressure is released, remove the pressure relief cap.
- Using hose clamp pliers, clamp the engine coolant return hose and the motor electronics coolant return hose.
- Using a suitable suction device, siphon the coolant from the degas bottle.
- Disconnect the MECS coolant vent hose.
- Disconnect the 2 engine coolant vent hoses.
- Detach the pin-type retainer from the degas bottle.
- Remove the degas bottle bolt and nut.
- To install, tighten the nut to 6 Nm (53 lb-in) and the bolt to 8 Nm (71 lb-in).
- Lift the degas bottle up and disconnect the engine coolant and MECS coolant return hoses.
- Remove the degas bottle.
- To install, reverse the removal procedure.
- Fill the degas bottle. Refer to Cooling System Draining, Filling and Bleeding in this article and MECS Cooling System Draining and Filling for the recommended coolant mixtures and fill levels
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.
NOTE:
The degas bottle has 2 separate reservoirs. The front (larger) reservoir is part of the engine cooling system. The rear (smaller) reservoir is part of the Motor Electronics Cooling System (MECS) cooling system.