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Mazda 3 L4-2.5L (2010)03 · Maintenance
03 · Maintenance

Coolant: Testing and Inspection (page 3 of 3)

Make
Mazda
Model
3
Engine
L4-2.5L
Year
2010
Section
Fluids › Coolant
MaintenanceTesting and Inspection · page 3 of 3
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Tightening torque

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1.2-1.5 Nm {13-15 kgf-cm, 11-13 in-lbf}

6. 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)

7. Refill the engine coolant into the coolant reserve tank up to the MAX mark on the tank.

8. Install the cooling system cap.

CAUTION:

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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.

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If the engine coolant level in the coolant reserve tank is below the MIN mark during engine coolant air bleeding operation, stop the engine, and
after the engine coolant temperature decreases, add engine coolant. Then, resume the engine coolant air bleeding operation.

9. Start the engine and warm up the engine by idling.

10. Bleed the air by following the procedures below. At this time, be careful of the coolant temperature to prevent overheating.

NOTE:

1

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
PCM control operation, which prevents overheating, and it does not indicate a malfunction.

a. Run the engine at 2,500 rpm for 2-3 min, 2 times.

b. Run the engine at 3,000 rpm for 5 s, then idle.

c. Repeat steps (1), (2) twice.

11. Stop the engine, and inspect the engine coolant level after the engine coolant temperature decreases.

12. Check the coolant level. 

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If it is low, refill the coolant into the coolant reserve tank up to the MAX mark on the tank.

13. Inspect for engine coolant leakage.  See: Testing and Inspection/Engine Coolant Leakage Inspection

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Parts & tools for this job For 2010 Mazda 3 2.5L

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