2021 Mazda CX-3 AWDFACTORY OEM SERVICE PROCEDURE

With Coolant Control Valve

NOTE:
  • The engine oil temperature sensor and engine oil pressure sensor cannot be removed as a single unit. When replacing the engine oil temperature sensor or engine oil pressure sensor, replace the engine oil temperature sensor/engine oil pressure sensor.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  2. Lift up the vehicle.
  3. Remove the front under cover No. 2. (See FRONT UNDER COVER NO. 2 REMOVAL/INSTALLATION .)
  4. Disconnect the connector for the engine oil temperature sensor/engine oil pressure sensor using the following procedure: (See ENGINE OIL TEMPERATURE SENSOR/ENGINE OIL PRESSURE SENSOR CONNECTOR CONNECTION NOTE .)
    1. Pull out the connector lock in the direction of the arrow.
      G12184618Courtesy of MAZDA MOTORS CORP.
    2. Press the lock down in the direction of the arrow and disconnect the connector.
  5. Remove the engine oil temperature sensor/engine oil pressure sensor.
    Fig 1: Engine Oil Temperature Sensor/Engine Oil Pressure Sensor With Torque Specification
    G12184619Courtesy of MAZDA MOTORS CORP.
  6. Install in the reverse order of removal.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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