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Engine Coolant Temperature (ECT) Sensor Removal/Installation: Notes

Special Service Tool (SST) 

49 D015 001
Box wrench
G15654591Courtesy of MAZDA MOTORS CORP.

Replacement Part 

O-ring
Quantity: 1
Location of use: ECT sensor No. 1
O-ring
Quantity: 1
Location of use: ECT sensor No. 2
Washer
Quantity: 1
Location of use: ECT sensor No. 2
WARNING:
  • A hot engine can cause severe burns. Turn off the engine and wait until it is cool before removing the ECT sensor.