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Home >> Mazda >> 2021 >> CX-5 Sport, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Cooling System (VIN Y)) >> Thermostat Inspection

Thermostat Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Remove the thermostat. (See THERMOSTAT REMOVAL/INSTALLATION .)
  2. Visually check that the thermostat valve is closed.
  3. Place the thermostat in water.
    WARNING:
    • During inspection, the thermostat and water are extremely hot and can cause severe burns. Do not touch the thermostat and water.
  4. Heat the water and check the following.
    • Opening temperature and valve lift
    • If there is a malfunction, replace the thermostat.
    Thermostat initial-opening temperature
    86.5-89.5 °C {188-193 °F}
    Thermostat full-open temperature
    100 °C {212 °F}
    Thermostat full-open lift
    8.5 mm {0.33 in} or more