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

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Special Service Tool (SST) 

49 D015 001
Box wrench
G13557621Courtesy 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.