Mazda Car 2005-06

Removal & Installation

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CAUTION
Remove and install all parts when the engine is cold, otherwise they can cause severe burns or serious injury.

  1. Remove the battery cover.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Drain and recycle the engine coolant.
  6.  
  7. Remove the throttle body.
  8.  
  9. Disconnect the bypass hose and lower radiator hose from the thermostat.
  10.  
  11. Remove the thermostat retainers, thermostat housing, thermostat and gasket.
  12.  

To install:

  1. Installation is the reverse of removal. Use a new thermostat housing gasket and tighten the thermostat housing retainers to 71-101 in. lbs. (8-11.5 Nm).
  2.  
  3. Fill the cooling system and check for leaks.
  4.  

2.3L (L3) Engine



  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Drain and recycle the engine coolant.
  6.  
  7. Remove the drive belt.
  8.  
  9. Remove the power steering pump with hoses and pipe still connected. Position the P/S oil pump out of the way.
  10.  
  11. Disconnect the water hose and lower radiator hose from the thermostat.
  12.  
  13. Remove the thermostat retainers, thermostat housing, thermostat and gasket.
  14.  

To install:

  1. Installation is the reverse of removal. Use a new thermostat housing gasket and tighten the thermostat housing retainers to 71-101 in. lbs. (8-11.5 Nm).
  2.  
  3. Fill the cooling system and check for leaks.
  4.  

3.0L (Aj) Engine



  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Drain and recycle the engine coolant.
  6.  
  7. Remove the drive belt.
  8.  
  9. Disconnect upper and lower radiator hoses.
  10.  
  11. Remove the thermostat retainers, thermostat housing, thermostat and gasket.
  12.  

To install:

  1. Installation is the reverse of removal. Make sure to install the thermostat with the jiggle valve at the top. Use a new thermostat housing gasket and tighten the thermostat housing retainers to 71-101 in. lbs. (8-11.5 Nm).
  2.  
  3. Fill the cooling system and check for leaks.

    Click image to see an enlarged view

    Fig. Make sure to install the thermostat with the jiggle valve at the top-Mazda6 with 3.0L engine

  4.  

Mazdaspeed6



  1. Before servicing the vehicle, refer to the precautions section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Drain and recycle the engine coolant.
  6.  
  7. Remove the drive belt.
  8.  
  9. Remove the power steering pump with hoses and pipe still connected. Position the P/S oil pump out of the way.
  10.  
  11. Disconnect the water hose and lower radiator hose from the thermostat.
  12.  
  13. Remove the thermostat retainers, thermostat housing, thermostat and gasket.
  14.  

To install:

  1. Installation is the reverse of removal. Use a new thermostat housing gasket and tighten the thermostat housing retainers to 71-101 in. lbs. (8-11.5 Nm).
  2.  
  3. Fill the cooling system and check for leaks.
  4.  

 
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