SECTION 303-03A: Engine Cooling
2014 Mustang Workshop Manual
REMOVAL AND INSTALLATION
Procedure revision date: 01/07/2013

Degas Bottle

 
Degas Bottle - 3.7L and 5.0L Engines

Item Part Number Description
1 8101 Pressure relief cap
2 15161 Thermostat housing-to-degas bottle hose clamp (3.7L engine)
2 15161 Coolant outlet connector-to-degas bottle hose clamp (5.0L engine)
3 8075A Thermostat housing-to-degas bottle hose (3.7L engine)
3 8075A Coolant outlet connector-to-degas bottle hose (5.0L engine)
4 W704652 Degas bottle bolt (2 required)
5 W527383 Radiator-to-degas bottle hose clamp
6 8075B Radiator-to-degas bottle hose
7 15161 Degas bottle-to-engine hose clamp
8 8K289 Degas bottle-to-engine hose (3.7L)
8 8K276 Degas bottle-to-engine hose (5.0L)
9 8A080 Degas bottle


 
Degas Bottle - 5.8L Engine

Item Part Number Description
1 W527383 Radiator-to-degas bottle hose clamp
2 8C633 Radiator-to-degas bottle hose
3 15161 Degas bottle-to-engine hose clamp
4 8C350 Degas bottle-to-engine hose
5 W704652 Degas bottle bolt (2 required)
6 8A080 Degas bottle
7 8101 Pressure relief cap

Removal and Installation

All engines

  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.

    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.
  1. Using hose clamping pliers, clamp the degas bottle-to-engine hose.
  1. Using a suction device, siphon the coolant from the degas bottle.
  1. Disconnect the radiator-to-degas bottle hose from the degas bottle.

3.7L engine

  1. Release the clamp and disconnect the thermostat housing-to-degas bottle hose from the degas bottle.

5.0L engine

  1. Release the clamp and disconnect the coolant outlet connection-to-degas bottle hose from the degas bottle.

All engines

  1. Remove the 2 degas bottle bolts.
  1. Release the clamp and disconnect the degas bottle-to-engine hose from the degas bottle and remove the degas bottle.
  1. To install, reverse the removal procedure.
  1. Fill the degas bottle. Refer to Cooling System Draining, Filling and Bleeding for the recommended coolant mixture and fill level.