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Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Cooling System (VIN L)) >> Engine Coolant Replacement >> Total Engine Coolant Amount (Reference)

Total Engine Coolant Amount (Reference)

WARNING: This page is about a different variant/trim than selected.
MTX 6.2 L {6.6 US qt, 5.5 Imp qt}
ATX VIN 7 U.S.A. and Canada 6.5 L {6.9 US qt, 5.7 Imp qt}
VIN L U.S.A. and Canada 6.6 L {7.0 US qt, 5.8 Imp qt}
  1. Remove the cooling system cap.
  2. Drain the engine coolant from the coolant reserve tank.
  3. Insert the specified hose (hose inner diameter: 7 mm {0.3 in}) into the service hole of front under cover No. 1.
    G13174838Courtesy of MAZDA MOTORS CORP.
  4. Connect the hose to the engine coolant outlet of the radiator.
  5. Loosen the radiator drain plug and drain the engine coolant into a container.
    G13174839Courtesy of MAZDA MOTORS CORP.
  6. After completely draining the engine coolant, tighten the radiator drain plug.
  7. Disconnect the hose for draining engine coolant.
  8. Referring to the following chart, select the correct volume percentage of the water and engine coolant.

    Antifreeze solution mixture percentage (Except FL22 type engine coolant) 

    Engine coolant protection Volume percentage (%) Gravity at 20 °C {68 °F}
    Water   Coolant
    Above -16 °C {3 °F} 65 35 1.057
    Above -26 °C {-15 °F} 55 45 1.072
    Above -40 °C {-40 °F} 45 55 1.086
  9. Refill the engine coolant from the radiator filler neck until it is close to the top of the radiator filler neck.
  10. Refill the engine coolant into the coolant reserve tank up to the F mark on the tank.
  11. Install the cooling system cap.
    CAUTION:
    • If the high engine coolant temperature warning light flashes, stop the engine to lower the engine coolant temperature and prevent overheating. Then, verify the malfunctioning part and repair or replace it.
  12. Start the engine and warm up the engine by idling.
  13. After the engine warms up, perform the following steps. At this time, be careful of the engine coolant temperature to prevent overheating.
    NOTE:
    • If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not indicate a malfunction.
    1. Run the engine at 2, 500 rpm for 5 min.
    2. Maintain the engine speed at 3, 000 rpm for 5 s, and then idle.
    3. Repeat Steps ( 1), (2) several times.
  14. Stop the engine, and inspect the engine coolant level after the engine coolant temperature decreases. If it is low, repeat Steps  9 -13.
  15. Inspect for engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION .)
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