Cooling System: Overview Mazda MPV II рестайлинг

Scheme 5

Scheme 6

1. Verify that the coolant level in the coolant reservoir is between the F and L marks. If the engine coolant level is below L, remove the cooling system cap and add coolant. (See «COOLING SYSTEM SERVICE WARNINGS»(ref-178034-S14417499622005061000000) .)

Scheme 7

1. Measure the coolant temperature and specific gravity with a thermometer and a hydrometer. CAUTION: The engine has aluminum parts that can be damaged by alcohol or methanol antifreeze. Do not use alcohol or methanol in the cooling system. Use only ethylene-glycol-based coolant. Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will reduce the coolant's effectiveness.
2. Determine the coolant protection by referring to the graph shown. If the coolant protection is not proper, add water or coolant.

Scheme 8

Scheme 9

Scheme 10

1. Remove the cooling system cap, the radiator drain plug and the rear heater unit drain plug (if equipped).
2. Drain the coolant into a container.
3. Flush the cooling system with water until all traces of color are gone.
4. Let the system drain completely.
5. Tighten the radiator drain plug and the rear heater unit drain plug (if equipped). CAUTION: The engine has aluminum parts that can be damaged by alcohol or methanol antifreeze. Do not use alcohol or methanol in the cooling system. Use only ethylene-glycol-based coolant. Use only soft (demineralized) water in the coolant mixture. Water that contains minerals will cut down on the coolant's effectiveness. Engine coolant will damage paint. If engine coolant does get on a painted surface, rinse it off quickly.
6. Referring to the following chart, select proper volume percentage of the water and coolant. Antifreeze solution mixture percentage
7. Fill the coolant into the reservoir up to the FULL mark on the coolant reservoir.
8. Tighten the cooling system cap. CAUTION: If the coolant temperature becomes too high, stop the engine to prevent it from overheating.
9. Start the engine and let it idle until the cooling fan operates.
10. After engine warms up, perform the following steps. Run the engine at 4,000 rpm for 1 min. Run the engine at idle for 1 min. Repeat steps (1) and (2) several times. Turn on the main and rear heaters and verify heat from heater vents.
11. Stop the engine and wait until it is cool.
12. Inspect the coolant level. If it is low, repeat Steps 7-12.
13. Verify there is no coolant leakage.

Scheme 11

1. Inspect the coolant level.
2. Remove the cooling system cap.
3. Connect a radiator cap tester and the SST to the reservoir filler port.
4. Apply specified pressure to the radiator. Pressure 123 kPa {1.25 kgf/cm 2 , 17.8 psi} CAUTION: Applying more than 123 kPa {1.25 kgf/cm 2 , 17.8 psi} can damage the hoses, fittings, and other components, and cause leaks.
5. Verify that the pressure is held. If not, inspect the system for coolant leakage.

Scheme 12

1. Attach the cooling system cap to a radiator cap tester with the SST . Apply pressure gradually.
2. Verify that the pressure becomes held within the specification. If the pressure is held for 10 s, the cooling system cap is normal. Pressure 94-122 kPa {0.95-1.25 kfg/cm 2 , 13.6-17.7 psi}

Scheme 13

1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See «COOLING SYSTEM SERVICE WARNINGS»(ref-178034-S14417499622005061000000) .) See «ENGINE COOLANT REPLACEMENT»(ref-178034-S22817698222005061000000) .)
3. Remove the front bumper (See FRONT BUMPER REMOVAL/INSTALLATION ).
4. Remove the hood lock. (See HOOD REMOVAL/INSTALLATION .)
5. Remove the A/C bracket.